ABSTRACTS FOR TALKS - lsm.rutgers.edulsm.rutgers.edu/cgi-server/user-html/news/Symposium2016...

THIRTIETH ANNUAL SYMPOSIUM

of the

LABORATORY FOR SURFACE MODIFICATION and

INSTITUTE FOR ADVANCED MATERIALS, DEVICES AND NANOTECHNOLOGY

Monday, April 4, 2016

9:00 a.m. to 5:00 p.m.

Rutgers, the State University of New Jersey

PROGRAM

Fiber Optics Auditorium Busch Campus

Piscataway, New Jersey

Laboratory for

Surface Modification

Nano Physics

Laboratory

THE STATE UNIVERSITY OF NEW JERSEY Laboratory for

Surface Modification

Nano Physics

Laboratory


LABORATORY FOR SURFACE MODIFICATION

INSTITUTE FOR ADVANCED MATERIALS, DEVICES AND

NANOTECHNOLOGY

* = Student Presenter 2

8:30 Registration, coffee

9:00 Introductory Remarks

Professor Torgny Gustafsson,

Director, Laboratory for Surface Modification

SESSION I:

SURFACES AND INTERFACES

Chair: Prof. Leonard Feldman

VP Physical Science and Engineering Partnerships

Director, IAMDN

9:05 Zinc(II) Tetraphenylporphyrin on Ag(100) and Ag(111): Multilayer

Desorption and Dehydrogenation Charles Ruggieri

1*, Sylvie Rangan

1, Robert A. Bartynski

1 and Elena Galoppini

2

1Department of Physics and Astronomy and

2Chemistry Department, Rutgers - Newark

9:20 Surface Modification for Immobilization of Plasmonic Nanoparticles for

Biomedical and Energy Application

Sakshi Sardar3*, Mehdi Javanmard

2 and Laura Fabris

1

1Department of Materials Science and Engineering, Rutgers University,

2Department of

Electrical and computer engineering, Rutgers University and 3 Department of Biomedical

Engineering, Rutgers University

9:35 Kinetic Study of Interfacial SiO2 Scavenging in HfO2 Gate Stacks on Si

Substrate Xiuyan Li, Takeaki Yajima, Tomonori Nishimura and Akira Toriumi Department of Materials Engineering, the University of Tokyo, Japan

9:50 Electron Dynamics at Metal-Organic Interfaces: Triplet and Singlet Excitons Shou-Feng Zhang

1,2* and Michele Pavanello

1

1Department of Chemistry, Rutgers University – Newark and

2Institute of Theoretical

Chemistry, Jilin University, Changchun, China

9:50 – 10:20 Coffee Break and Poster Session




NANOTECHNOLOGY


SESSION II:

BIOMEDICAL SYSTEMS AND SURFACES

Chair: Prof. Robert Bartynski

Chair, Department of Physics and Astronomy

10:20 **HIGHLIGHT PRESENTATION**

Visualizing Molecular Assemblies inside Cells by CryoEM and CryoET

Wei Dai

Department of Cell Biology & Neuroscience and Center for Integrative Proteomics

Research, Rutgers University

11:00 The Effects of Scaffold Mechanical Cues on Retinal Pigment Epithelial Cells

Corina E. White* and Ronke M. Olabisi

Department of Biomedical Engineering, Rutgers University

11:15 Electronic Quantification of Circulating Cancer Cells Based on Bead-CTC

Aggregate Sizing

Zhongtian Lin1*, Pengfei Xie

1, Siang-Yo Lin

2, Milton Liu

1, Joseph R. Bertino

2 and

Mehdi Javanmard1

1Department of Electrical and Computer Engineering, Rutgers University and

2Rutgers

Cancer Institute of New Jersey, Rutgers University

11:30 The Solid State Conversion Reaction of Epitaxial CoO Films Studied by

STM and ARXPS Ryan Thorpe*, Sylvie Rangan, Adrian Howanski and Robert A. Bartynski

Department of Physics and Astronomy and Laboratory for Surface Modification, Rutgers

University

11:45 Surface Studies of an Ionic Liquid on Noble and Transition Metals Aleksandra B. Biedron

1*, Sylvie Rangan

2, Edward W. Castner, Jr.

1 and Eric L.

Garfunkel1

1Department of Chemistry and Chemical Biology and

2Department of Physics and

Astronomy, Rutgers University

12:00 – 1:00 Lunch and Poster Session




NANOTECHNOLOGY


POSTER PAPERS:

1) Helium Ion Microscopy Characterization and Analysis of Biological

Structures Viacheslav Manichev

1,3*, Hao Wang

2,3, Eric Garfunkel

1,3, Leonard C. Feldman

2,3 and

Torgny Gustafsson2,3

1Department of Chemistry and Chemical Biology,


Astronomy, and Laboratory for Surface Modification and 3Institute for Advanced

Materials Devices and Nanotechnology, Rutgers University

2) Multiplexed Molecule Assays using Nanoelectronically Barcoded Beads Pengfei Xie*, Zhongtian Lin, Xinnan Cao

and Mehdi Javanmard

1 Electrical Engineering, Rutgers University

3) Reduced Graphene Oxide (RGO) Thin Film based Electochemical Sensor for

Detection of Nitrite in Exhaled Breath Condensate (EBC) Azam Gholizadeh

1*, Damien Voiry

2, Cliff Wiesel

3, Howard Kipen

3, Robert Laumbach

3,

Manish Chhowalla2 and Mehdi Javanmard

1

1ECE Department, Rutgers University,

2Material Science Department, Rutgers University

and 3EOHSI, Rutgers University

4) First Principles Light Alkane Dehydrogenation with Hydrogen Spectators on

Pt: Main Group Alloys Alec Hook* and Fuat E. Celik

Chemical and Biochemical Engineering, Rutgers University

5) Correct Implementation of Polarization Constants in Wurtzite Materials and

Impact on IIInitrides Cyrus E. Dreyer

1, Anderson Janotti

2, Chris G. Van de Walle

2 and David Vanderbilt

1

1Department of Physics and Astronomy, Rutgers University and

2Materials Department,

University of California, Santa Barbara

6) Electrocatalysts for Bidirectional O2 Reduction & Evolution from Water by

Intermetallic Molybdate Oxides/Nitrides Graeme Gardner

1*, Jack Weber

1, Spencer Porter

1, Shinjae Hwang

1, Martha Greenblatt

1

and G. Charles Dismukes1

1Department of Chemistry and Chemical Biology, Rutgers University

7) TEM-EELS Study of NCA Battery Cathode and Standard Material Alexander Kong*, Pinaki Mukherjee, Nathalie Pareira, Glenn Amatucci and Frederic

Cosandey

Materials Science and Engineering, Rutgers University




NANOTECHNOLOGY


8) New Layered Honeycomb Tellurates: PbMn(IV)TeO6 and BiM(III)TeO6

(M = Cr, Fe) Sun Woo Kim

1, Zheng Deng

1, Man-Rong Li

1, Zachary Fischer

1, Arnab Sen Gupta

2,

Hirofumi Akamatsu2, Saul H. Lapidus

3, Peter W. Stephens

4, Venkatraman Gopalan

2,

Corey Evans1, Xiaoyan Tan

1 and Martha Greenblatt

1

1Department of Chemistry and Chemical Biology, Rutgers University,

2Department of

Materials Science and Engineering, Pennsylvania State University, University

Park,3Advanced Photon Source, Argonne National Laboratory and

4Department of

Physics & Astronomy, State University of New York, Stony Brook

9) Fabrication and Characterization of Nanowires using a Helium Ion

Microscope Takane Kobayashi

1,2, Hao Wang

2, Slava Manichev

2, Wen Sen Lu

2, Torgny Gustafsson

2

and Leonard C. Feldman3

1RIKEN, Wako, Japan,


3Institute for

Advanced Materials, Devices and Nanotechnology, Rutgers University

10) A Novel Stress Measurement Method and Oxidation Induced Stress at the

SiO2/SiC Interface Xiuyan Li

1,3, Alexei Ermakov

1, Voshadhi Amarasinghe


2,3, Leonard

C Feldman2,3

and Eric, Garfunkel1,3


2Department of Physics and Astronomy

and 3Institute for Advanced Materials, Devices and Nanotechnology, Rutgers University

11) Observation of Quasielastic Peaks in Raman Scattering Study of CeB6 Mai Ye

1*, Alexander Lee

1, Hsiang-Hsi Kung

1, Girsh Blumberg

1,2, Priscila F. S. Rosa

3,

Joe D. Thompson3, Eric D. Bauer

3 and Zachary Fisk

4

1Department of Physics and Astronomy, Rutgers University,

2National Institute of

Chemical Physics and Biophysics, Tallinn, Estonia, 3Los Alamos National Laboratory,

NM and 4Department of Physics and Astronomy, University of California

12) Stepwise Detection of Antigens Using Aptamer Triggered DNAzyme Signal

Amplification Tianran Li* and Jinglin Fu

The Center for Computational and Integrative Biology, Rutgers University - Camden 13) Pattering of SiC Surfaces by a Helium Ion Microscope

Hao Wang1, 2

, Ethan Torrey3, Mengjun Li

4, Can Xu

1, 2, Voshadhi Amarasinghe

2, Eric

Garfunkel2, 4

, Torgny Gustafsson1, 2

, Philip I. Cohen3 and Leonard C. Feldman

1, 2

1Department of Physics and Astronomy,

2Institute for Advanced Materials, Devices and

Nanotechnology (IAMDN), 3Department of Electrical and Computer Engineering,

University of Minnesota and 4Department of Chemistry & Chemical Biology, Rutgers

University




NANOTECHNOLOGY


14) Microspatial Control of Mineralization via Covalent Immobilization of

Nacre Proteins onto Poly(ethylene glycol) Hydrogels Kristopher White

1* and Ronke Olabisi

2

1Department of Chemical and Biochemical Engineering, Rutgers University and

2Department of Biomedical Engineering, Rutgers University




NANOTECHNOLOGY


SESSION III:

SURFACES, INTERFACES AND NOVEL METHODS

Chair: Professor David Vanderbilt

Board of Governors Professor

Department of Physics and Astronomy, Rutgers University

1:00 WELCOMING REMARKS Prof. Ronald Ransome

Dean of Mathematical and Physical Sciences

School of Arts and Sciences


Shining Light on the Flatland Jak Chakhalian

Center for Artificial Quantum Materials University of Arkansas, Physics Department,

Fayetteville, AR

1:45 Photoemission Studies of Biased Metal-Insulator-Semiconductor Structures Malathi Kalyanikar

1*, Sylvie Rangan

2, Junxi Duan

2, Gang Lu

3, Robert Bartynski

2, Eva

Andrei2, Leonard Feldman

3 and Eric Garfunkel

1


2Department of

Physics and Astronomy, Rutgers University and 3Institute for Advanced Materials,

Devices and Nanotechnology, Rutgers University

2:00 Chiral Exciton in the Topological Insulator Bi2Se3 Hsiang-Hsi Kung

1*, M. Salehi

2, X. Wang

1,3, N. Koirala

1, M. Brahlek

1, A. Lee

1, S.-W.

Cheong1,3

, S. Oh1 and G. Blumberg

1


2Department of Materials Science and

Engineering, 3Rutgers Center for Emergent Materials, Rutgers University

2:15 Ferroelectricity in Corundum Derivatives Meng Ye* and David Vanderbilt


2:30 – 3:00 Afternoon Break




NANOTECHNOLOGY


SESSION IV:

ELECTROCHEMISTRY, CATALYSIS AND BATTERIES

Chair: Prof. John Brennan

Department of Chemistry and Chemical Biology

3:00 Electrochemical Hydrogen Evolution on a Low-Phosphorus Content

Crystalline Phase of Nickel Phosphide Anders B. Laursen

1,2, M. J. Whitaker

1, R. B. Wexler

3, A. M. Rappe

3, M. Greenblatt

1 and

G. C. Dismukes1,2


2IAMDN, Rutgers University and

3University of Pennsylvania

3:15 Metallic 1T Phase MoS2 Nanosheets as Electrochemical Actuator Materials Muharrem Acerce* and Manish Chhowalla

Material Science and Engineering, Rutgers University

3:30 High Pressure High Temperature Annealing of Anatase TiO2 for Increased

Photocatalytic Activity Ashley M. Pennington*, Katelyn A. Dagnall, Rachel A. Yang and Fuat E. Celik

Department of Chemical and Biochemical Engineering, Rutgers University

3:45 Behavior of LiNi0.8Co0.15Al0.05 O2 Battery Cathode Materials at High Voltages Pinaki Mukherjee

1, Dong Su

2, Nathalie Pareira

1, Glenn Amatucci

1 and Frederic

Cosandey1

1Materials Science and Engineering, Rutgers University and

2Center for Functional

Nanomaterials, Brookhaven National Laboratory

4:00 Thermal Reduction of Graphene Oxide Investigated by Electron

Spectroscopy Alessandro Ruocco

1, G. Di Filippo

1, A. Liscio

2, V. Palermo

2 and G. Stefani

1

1Dipartimento di Scienze, Università Roma Tre, Roma Italy and

2 ISOF - Consiglio

Nazionale delle Ricerche Bologna, Bologna Italy

4:15 Presentation of Theodore E. Madey Student Award: Best Oral Presentation

Presentation of Leszek Wielunski Student Award: Best Poster Presentation




NANOTECHNOLOGY


ABSTRACTS FOR TALKS

9:05 Zinc(II) Tetraphenylporphyrin on Ag(100) and Ag(111): Multilayer

Desorption and Dehydrogenation Charles Ruggieri

1*, Sylvie Rangan

1, Robert A. Bartynski

1 and Elena Galoppini

2


2Chemistry Department, Rutgers - Newark

The interaction between zinc(II) tetraphenylporphyrin (ZnTPP) molecules and the

Ag(100) and Ag(111) surfaces is investigated using a combination of scanning tunneling

microscopy as a local probe of the molecular adsorption configuration and x-ray,

ultraviolet and inverse photoemissions as probes of the electronic structure. For each

surface, a monolayer of ZnTPP, formed by multilayer desorption, exhibits a highly

ordered structure in registry with the underlying surface lattice. Subsequent annealing

leads to a transition from intact molecular adsorption to dehydrogenation and subsequent

rehybridization. This rehybridization is both intramolecular, with a flattening of the

molecules and a measurable alteration of the electronic structure, and intermolecular

leading to growth of extended covalently bound structures.

9:20 Surface Modification for Immobilization of Plasmonic Nanoparticles for

Biomedical and Energy Application Sakshi Sardar

3*, Mehdi Javanmard

2 and Laura Fabris

1

1 Department of Materials Science and Engineering, Rutgers University,

2Department of

Electrical and computer engineering, Rutgers University and 3 Department of Biomedical

Engineering, Rutgers University

Anisotropy and aspect ratio tunability of nanorods make these particles highly desirable

for sensing purposes. However, they tend to aggregate when the surfactant bilayer is

disrupted. In our work, we immobilize gold nanorods on glass substrates using a small

molecule tether, leading to a uniform distribution of the rods throughout the substrate

with limited to no aggregation. This method allows us to apply an electric field to the

substrate, potentially leading to an alignment of the rods with the field. These substrates

can find potential applications as sensing platforms for the detection of proteins,

oligonucleotides, and small molecule metabolites.

9:35 Kinetic Study of Interfacial SiO2 Scavenging in HfO2 Gate Stacks on Si

Substrate Xiuyan Li, Takeaki Yajima, Tomonori Nishimura and Akira Toriumi Department of Materials Engineering, the University of Tokyo, Japan SiO2 interface layer (SiO2-IL) scavenging in high-k gate stacks has been proposed to achieve effective-oxide-thickness (EOT) scaling in state-of-the-art microelectronic devices. Understanding the reaction-diffusion process in the scavenging is critically required for further EOT scaling as well as for interface materials science. We present a kinetic study of SiO2-IL scavenging by paying attention to Si/SiO2 interactions in addition to both oxygen and Si diffusion, followed by a detailed picture of how SiO2-IL scavenging is induced via both substrate effects and VO injection from HfO2. We further demonstrate that SiO2-IL scavenging can be extended to new channel materials containing Si.




NANOTECHNOLOGY


9:50 Electron Dynamics at Metal-Organic Interfaces: Triplet and Singlet Excitons Shou-Feng Zhang

1,2* and Michele Pavanello

1

1Department of Chemistry, Rutgers University – Newark and

2Institute of Theoretical

Chemistry, Jilin University, Changchun, China

The performance of opto-electronic devices predominantly depends on the properties of

their internal interfaces. Many experimental and theoretical efforts have been made to

understand the film morphology and the valence electronic structure at the metal-organic

interfaces, however, little has been done to interrogate the excited states. Here, by using

real-time subsystem TDDFT we have modeled triplet and singlet excitons in crystal

pentacene. We have found that the Coulomb interaction between triplet and singlet

pentacenes gives rise to interesting state mixing leading to exciton energy shift compared

to the spin-pure excitons. Combining the method with Ehrenfest dynamics, we report

preliminary results regarding triplet and singlet excitations at pentacene/Au(111)

interface. Particular attention has been paid to the spectral broadening given by the

presence of the semi-infinite metal surface.


Visualizing Molecular Assemblies inside Cells by CryoEM and CryoET Wei Dai

Department of Cell Biology & Neuroscience and Center for Integrative Proteomics

Research, Rutgers University

Three dimensional cryo-electron microscopy (cryoEM), in which biological samples are

preserved in a thin layer of vitreous ice and then imaged with an electron microscope,

offers scientists structure of proteins in their native state at varying resolution. There are

two major branches of cryoEM: single particle analysis and tomography. In my

presentation, I will show two examples of using integrated approach of single particle

reconstruction and cellular tomography to visualize macromolecular protein complexes

while they carry out their cellular functions. I will also discuss recent technical

breakthroughs that promoted cryoEM as the Method of the Year 2015.

11:00 The Effects of Scaffold Mechanical Cues on Retinal Pigment Epithelial Cells

Corina E. White* and Ronke M. Olabisi

Department of Biomedical Engineering, Rutgers University

The retinal pigment epithelium (RPE) is a highly functional cell monolayer responsible

for maintaining a healthy retina, and therefore vision. In several disease pathologies the

RPE becomes dysfunctional causing death of the retina and eventual blindness. Cell

transplantation using a polymer scaffold has been proven to be a promising approach for

the treatment of such diseases. However, current challenges associated with this approach

include cell dedifferentiation and inflammation post-transplantation. We hypothesize that

through the design and optimization of scaffold cues such as mechanical properties and

surface conjugated signaling molecules, these challenges can be addressed. The presented

work, for the first time, investigates how the scaffold surface mechanical cues affect

adhesion and expression of cells cultured on the scaffold.




NANOTECHNOLOGY


11:15 Electronic Quantification of Circulating Cancer Cells Based on Bead-CTC

Aggregate Sizing Zhongtian Lin

1*, Pengfei Xie

1, Siang-Yo Lin

2, Milton Liu

1, Joseph R. Bertino

2 and

Mehdi Javanmard1

1Department of Electrical and Computer Engineering, Rutgers University and

2Rutgers

Cancer Institute of New Jersey, Rutgers University

Rapid quantification of surface markers on circulating tumor cells (CTCs) can allow for

prediction of patient response to various cancer drugs. Here, we implemented an

electrical-impedance based biochip for quantification of proteins on surfaces of cancer

cells. We demonstrated proof-of-concept based on detection of matriptase proteins on the

surface of CTCs. Matriptase, a membrane-bound serine type II protease, is overexpressed

in most CTCs. Our assay works by coating magnetic beads with an anti-matriptase

monoclonal antibody (M69) and then mixing the beads with isolated CTCs. The

expression of matriptase on the membrane of CTCs results in bead-CTC aggregation. The

level of matriptase is detected by our biochip based on the Bead-CTC aggregate sizing.

11:30 The Solid State Conversion Reaction of Epitaxial CoO Films Studied by

STM and ARXPS Ryan Thorpe*, Sylvie Rangan, Adrian Howanski and Robert A. Bartynski

Department of Physics and Astronomy and Laboratory for Surface Modification, Rutgers

University

Cobalt (II) oxide is a promising electrode material for Li-ion conversion batteries,

undergoing the following reversible redox reaction upon exposure to lithium:

2Li + CoO ↔ Li2O + Co0

In order to characterize the phase progression and morphology of the Li-CoO reaction,

epitaxial CoO(100) and (111) films were exposed to lithium in UHV. The early stages of

the reaction were then characterized with STM, while the diffusion of Li into the films

and simultaneous reduction of CoO was quantified using ARXPS. For CoO(111) films,

the conversion reaction spread from step edges and defect sites across the surface of the

film and then proceeded in a layer-by-layer fashion into the bulk. Conversely, the Li-

CoO(100) reaction proceeded deep into the film at preferential reaction sites before

spreading across the rest of the surface. The differences in these reactions can be

understood from a geometrical analysis of the CoO surfaces.




NANOTECHNOLOGY


11:45 Surface Studies of an Ionic Liquid on Noble and Transition Metals Aleksandra B. Biedron

1*, Sylvie Rangan

2, Edward W. Castner, Jr.

1 and Eric L.

Garfunkel1

1Department of Chemistry and Chemical Biology and


Astronomy, Rutgers University

Ionic liquids are a new class of materials with unique properties that hold great promise

for a wide range of applications. This work examines the chemical and structural

properties of the interaction of the IL in Figure 1 with Cu(100) and Au(111) surfaces.

Ultrathin films were prepared by physical vapor deposition and characterized with x-

ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy and scanning

tunneling microscopy. Results suggest a much stronger interaction with Cu(100) than

with Au(111), leading to much lower ionic mobility and to the unexpected preservation

of chemical integrity of all adsorbed species.

Figure 1: Ionic Liquid used in our studies

Acknowledgements: NSF, via the Nanotechnology for Clean Energy IGERT




NANOTECHNOLOGY



Shining Light on the Flatland Jak Chakhalian

Center for Artificial Quantum Materials University of Arkansas, Physics Department,

Fayetteville, AR

Complex oxides are a class of materials characterized by a variety of competing

interactions that create a subtle balance to define the lowest energy state and lead to a

wide diversity of intriguing properties ranging from high Tc superconductivity to exotic

magnetism and orbital phenomena. By utilizing bulk properties of these materials as a

starting point, we can now design unusual lattice geometries dressed with transition

metals ions including a generalized graphene lattice.

The broken lattice symmetry, strain, and altered chemical and electronic environments

then provide a unique laboratory to manipulate the subtle energy balance and enable

novel quantum many-body states not attainable in bulk. Understanding of these phases,

however, requires detailed microscopic studies of the heterostructure properties. In this

talk I will review our very recent results on graphene-like structures with Ni [1], and the

emergence of a spin and orbit polarized 2D electron gas in 3-“color” heterojuetions of

rare-earth titanites La/Sr/YTiO3 [2] to illustrate recently uncovered principles of rational

materials design [3].

1. S. Middey et al, “Mott Electrons in an Artificial Graphene-like Crystal of Rare-Earth

Nickelates”, PRL 116, 056801 (2016)

2. Yanwei Cao et al, “Magnetic Interactions at the Nanoscale in Tri-layer Titanates”, PRL 116,

076802 (2016)

3. J. Chakhalian et al, “Emergent properties hidden in plane view: Strong correlations at oxide

interfaces“, Review of Modern Physics, v. 86, (2014)




NANOTECHNOLOGY


1:45 Photoemission Studies of Biased Metal-Insulator-Semiconductor Structures Malathi Kalyanikar

1*, Sylvie Rangan

2, Junxi Duan

2, Gang Lu

3, Robert Bartynski

2, Eva

Andrei2, Leonard Feldman

3 and Eric Garfunkel

1


2Department of

Physics and Astronomy, Rutgers University and 3Institute for Advanced Materials,

Devices and Nanotechnology, Rutgers University

Electrostatic potential changes across thin films are of great importance for understanding

the properties of multilayered structures and devices. In this work, x-ray photoemission

studies are performed on a biased graphene/SiO2(6nm)/Si structure in order to determine

the potential profile across an entire metal-insulator-semiconductor stack. The core-levels

of the different elements provide a measure of the local potential and are used to

reconstruct the potential profile as a function of the each photoemission peak probing

depth. A linear potential drop is found across the oxide, with an offset at each interface.

2:00 Chiral Exciton in the Topological Insulator Bi2Se3 Hsiang-Hsi Kung

1*, M. Salehi

2, X. Wang

1,3, N. Koirala

1, M. Brahlek

1, A. Lee

1, S.-W.

Cheong1,3

, S. Oh1 and G. Blumberg

1


2Department of Materials Science and

Engineering, 3Rutgers Center for Emergent Materials, Rutgers University

We report the observation of a highly polarized photoluminescence peak in the

topological insulator Bi2Se3. The emission preserves the helicity of the excitation

photon, similar to the chiral exciton recently demonstrated in transition metal

dichalcogenide monolayers. The excitation profile is maximized around 2.60 eV,

suggesting that the chiral exciton is due to interband transition between a bulk band and

unoccupied topological surface states. We demonstrate that the polarization of the

exciton emission is insensitive to temperature and Bi2Se3 film thickness, providing a

convenient and robust platform for optoelectronic applications.

2:15 Ferroelectricity in Corundum Derivatives Meng Ye* and David Vanderbilt


The search and discovery of new ferroelectric (FE) materials can broad our understanding

of FE mechanisms and extend the application of FE materials. Corundum derivatives are

a class of material with chemical formula ABO3 or A2BB’O6 in corundum structure. A

few corundum derivatives, e.g. LiNbO3, are FE. Recently, many polar corundum

derivatives have been synthesized under high pressure in laboratory. In this talk, I will

discuss the condition under which the structure can be FE. The coherent as well as the

domain-wall mediated FE switching barrier for corundum derivatives are studied using

first-principles method. A few new FE materials are predicted and these results can

greatly accelerate the experimental discovery of new FE material in corundum derivative

family.




NANOTECHNOLOGY


3:00 Electrochemical Hydrogen Evolution on a Low-Phosphorus Content

Crystalline Phase of Nickel Phosphide Anders B. Laursen

1,2, M. J. Whitaker

1, R. B. Wexler

3, A. M. Rappe

3, M. Greenblatt

1 and

G. C. Dismukes1,2


2IAMDN, Rutgers University and

3University of Pennsylvania

Electrochemical water splitting promises to be essential for the development and

application of renewable energy sources, like solar and wind and an environmentally

friendly source for sustainable fertilizer production. Since 2013, many transition-metal

phosphides have been reported as potential replacements for Pt - the archetypical

electrocatalyst for H2 evolution (laboratories & industry). Recently, we reported Ni5P4

with electrical efficiency comparable to Pt and excellent corrosion resistance. Here, we

present the synthesis and benchmarking of Ni3P, another member of the extensive nickel

phosphide family of stoichiometric crystalline compounds. Nickel-rich electrocatalysts

are expected to be unstable in acidic electrolytes similarly to pure nickel metal. By

contrast, here we demonstrate that crystalline Ni3P shows high activity and excellent

stability in both acid and alkaline solution. A structural analysis, based on previously

published/unpublished DFT calculations, offers insights into the systematic trends in

electrocatalytic efficiency across the nickel phosphide series. Supported by a joint DOE-

EERE/NSF-CBET grant, NATCO, DOE-BES, DOE, NSF, NERSC, & Rutgers.

3:15 Metallic 1T Phase MoS2 Nanosheets as Electrochemical Actuator Materials Muharrem Acerce* and Manish Chhowalla

Material Science and Engineering, Rutgers University

Here we demonstrate chemically exfoliated nanosheets of metallic 1T phase MoS2 as an

electrochemical actuator. Previously, we reported that 1T phase MoS2 is an attractive

material for supercapacitor application. High charge storage performance can be

attributed to high electrical conductivity, surface charges and dynamic expansion of

layers via cation intercalation. We recently found that charge storage also leads up to

0.6% reversible electrode expansion. Considering this phenomena, we fabricated bimorph

actuator with 1T MoS2 and successfully transformed the electrical energy directly to

mechanical energy.

3:30 High Pressure High Temperature Annealing of Anatase TiO2 for Increased

Photocatalytic Activity Ashley M. Pennington*, Katelyn A. Dagnall, Rachel A. Yang and Fuat E. Celik

Department of Chemical and Biochemical Engineering, Rutgers University

Titanium dioxide (TiO2) is of interest in photocatalysis due to its photoactivity under UV

illumination and its stability under reaction conditions. Through high pressure annealing

in hydrogen, we have successfully decreased the band gap energy (BGE) of anatase TiO2

to 3.07 eV. EPR spectroscopy revealed an increase in reduced Ti3+

centers in the TiO2

samples after annealing under both nitrogen and hydrogen pressure, but nitrogen was less

effective at decreasing the BGE and aiding in photocatalytic activity. Hydrogen evolution

and reactant conversion from both methane steam reforming and methanol oxidation




NANOTECHNOLOGY


were studied to compare the increased photocatalytic activity of the modified TiO2 to the

unmodified anatase.

3:45 Behavior of LiNi0.8Co0.15Al0.05 O2 Battery Cathode Materials at High Voltages Pinaki Mukherjee

1, Dong Su

2, Nathalie Pareira

1, Glenn Amatucci

1 and Frederic

Cosandey1

1Materials Science and Engineering, Rutgers University and

2Center for Functional

Nanomaterials, Brookhaven National Laboratory

Recent commercial use of LiNi0.8Co0.15Al0.05 O2 (NCA) as battery cathode material has

generated significant interest with an aim to enhance its properties. At present, due to

safety concerns these materials are used at a maximum of 3.6V, at which only 50% of Li

can be extracted out of the cathode and thereby enormously limiting its capacity. The

formation of surface phases at high voltages is primarily responsible for this capacity-

limiting behavior. We study the evolution of the surface phases, their composition and

valence with voltage using atomic-resolution scanning transmission electron microscopy

(STEM) and electron energy loss spectroscopy (EELS).

4:00 Thermal Reduction of Graphene Oxide Investigated by Electron

Spectroscopy Alessandro Ruocco

1, G. Di Filippo

1, A. Liscio

2, V. Palermo

2 and G. Stefani

1

1Dipartimento di Scienze, Università Roma Tre, Roma Italy and

2 ISOF - Consiglio

Nazionale delle Ricerche Bologna, Bologna Italy

Graphene oxide (GO)[1]

is emerging as a versatile material for applications in

nanoscience and nanotechnology because of its easier production and processability as

well as simple chemical functionalization respect to graphene. The electrical and the

optical properties of GO are easily controlled by reductive processes.[2]

The annealing

in ultra high vacuum (UHV) is an effective free-contaminant process to obtain the

progressive elimination of oxygen from the single GO sheet.[3]

In this paper we present the evolution of the electronic structure of GO single sheets as a

function of the temperature in the range 150 – 750 °C in UHV. We studied a GO layer

corresponding to a partial coverage of 90% of single sheets spin-coated from aqueous

solutions on single crystal silicon substrate covered by a silicon oxide film. The

electronic structure of the system under consideration is studied by XPS, UPS and EELS.

We observe several spectroscopic changes as a function of temperature. In particular,

-plasmon loss in the EELS

spectrum and the appearance of electronic state at Fermi level in the UPS spectrum

indication of the metallization of the system. The reduction of the GO layer and the

formation of graphene-like layer is also indicated by a reduction in the intensity of the C-

H stretching mode.

[1] D. A. Dikin et al., Nature 448, 457 (2007)

[2] X. Wang et al., Nano Letters 8, 323 (2008)

[3] R. Larciprete et al, JACS 133, 17315 (2011)




NANOTECHNOLOGY


ABSTRACTS FOR POSTERS

1) Helium Ion Microscopy Characterization and Analysis of Biological

Structures Viacheslav Manichev

1,3*, Hao Wang

2,3, Eric Garfunkel

1,3, Leonard C. Feldman

2,3 and

Torgny Gustafsson2,3



Astronomy, and Laboratory for Surface Modification and 3Institute for Advanced

Materials Devices and Nanotechnology, Rutgers University

Using Helium Ion Microscope we are pursuing collaborative projects in both the

biological and biomedical fields. We have imaged “aged” rat kidney glomeruli, the

biological structure responsible for the blood filtration. A series of images clearly reveals

the structural and morphological changes associated with the aging process. In a second

study, we investigate the effect of ocean acidification on coral survivability. We have

imaged calcification centers in corals and observed significant morphological changes as

absorbed calcium forms.

We are developing a Time-of-Flight system capable of energy discrimination in the

Helium Ion Microscope. This detector would bring elemental identification to the

subnanometer regime.

2) Multiplexed Molecule Assays using Nanoelectronically Barcoded Beads Pengfei Xie*, Zhongtian Lin, Xinnan Cao

and Mehdi Javanmard

1Electrical Engineering, Rutgers University

Barcoding of micro-particles has been widely used for performing multiplexed genomic

and proteomic assays. We introduce the concept of electronically barcoded micron-sized

beads, which has been used with the potential of achieving high barcode density.

Electronic barcoding works by fabricating tunable nano-capacitors on the micro-particle

surfaces, effectively modulating the frequency dependent dielectric properties of the

particles allowing one bead barcode to be distinguished from another. We have

successfully demonstrated the ability to discriminate multiple particle types from each

other.




NANOTECHNOLOGY


3) Reduced Graphene Oxide (RGO) Thin Film based Electochemical Sensor for

Detection of Nitrite in Exhaled Breath Condensate (EBC) Azam Gholizadeh

1*, Damien Voiry

2, Cliff Wiesel

3, Howard Kipen

3, Robert Laumbach

3,

Manish Chhowalla2 and Mehdi Javanmard

1

1ECE Department, Rutgers University,

2Material Science Department, Rutgers University

and 3EOHSI, Rutgers University

This work reports nitrite detection in EBC samples using reduced graphene oxide as the

sensing material. Nitrite content in EBC can be a potential biomarker for inflammation in

the respiratory system. The performance of the sensor was characterized in standard

nitrite solutions using cyclic voltammetry and square wave voltammetry and then was

applied to patient EBC samples. The sensor has a sensitivity of 0.21 μA μM-1 cm-2 in

the range of 20-100 μM and 0.1 μA μM-1 cm-2 in 100-1000 μM nitrite concentration

with a low detection limit of 830 nM in EBC matrix.

Keywords: Exhaled breath condensate, Nitrite, Electrochemistry, thin layer reduced

Graphene oxide, Square wave voltammetry

4) First Principles Light Alkane Dehydrogenation with Hydrogen Spectators on

Pt: Main Group Alloys Alec Hook* and Fuat E. Celik

Chemical and Biochemical Engineering, Rutgers University

The effects of alloying platinum with main group elements on the kinetics and

thermodynamics of dehydrogenation and coke formation pathways during light alkane

dehydrogenation have been studied using density functional theory. Supported Pt

catalysts are known to be active for light alkane dehydrogenation, but the high

temperatures required by these endothermic reactions leads to significant coke formation

and deactivation. Hydrogen spectators have been shown to decrease coke formation and

increase the activity of light alkane dehydrogenation. This work demonstrates that not

only do different alloys show a large range of effects on the dehydrogenation; they also

show a separate range of effects in the presence of hydrogen.

5) Correct Implementation of Polarization Constants in Wurtzite Materials and

Impact on IIInitrides Cyrus E. Dreyer

1, Anderson Janotti

2, Chris G. Van de Walle

2 and David Vanderbilt

1

1Department of Physics and Astronomy, Rutgers University and

2Materials Department,

University of California, Santa Barbara

Accurate values for polarization discontinuities between pyroelectric materials are critical

for understanding and designing the electronic properties of heterostructures. The

wurtzite III-nitrides are a technologically important class of such materials. We show that

care must be taken when choosing a reference structure for defining effective

spontaneous polarization for these materials. Also, we address the correct choice of

“improper” versus “proper” piezoelectric constants for modeling heterostructures.




NANOTECHNOLOGY


6) Electrocatalysts for Bidirectional O2 Reduction & Evolution from Water by

Intermetallic Molybdate Oxides/Nitrides Graeme Gardner

1*, Jack Weber

1, Spencer Porter

1, Shinjae Hwang

1, Martha Greenblatt

1

and G. Charles Dismukes1

1Department of Chemistry and Chemical Biology, Rutgers University

The electrocatalytic reactions of oxygen evolution (OER) and oxygen reduction (ORR)

are important in almost any electrochemical energy conversion process involved in

storing and utilizing renewable energy, notably for reversibly-operating fuel cell-

electrolyzer. Although many reports of OER and ORR catalysts based upon Earth-

abundant metals appear in the research literature, there are no efficient electrolyzers or

fuels cells that operate without noble metals. Catalyst durability and efficiency remain

undemonstrated in commercial devices. An even greater challenge is that very few single

materials exist that display bifunctional electrocatalysis of both reactions, which is the

absolute requirement for a regenerative fuel cell. We have tested a series of transition

metal oxides and nitrides displaying activity for both reactions. However, most do not

display reversibility once polarized to oxidizing potentials where surface passivation

occurs. The main exceptions are cubic phase lithium cobalt oxide, LiCoO2, and the

bixbyite phase of Mn2O3 which retain high activity for the ORR after OER catalysis.

Recent studies documenting the origin of OER activity of these materials has appeared.1,2

We have synthesized bimetallic cobalt molybdenum oxides and nitrides that act as

efficient electrocatalysts for these reactions, with the nitride compound CoMoN2

demonstrating significant efficiency and stability for ORR and OER in alkaline

electrolyte in comparison to CoMoO4 and Co3Mo3N compounds, due in part to the more

nitrogen-rich coordination to cobalt and molybdenum. Research supported by a joint

grant from NSF-CBET/DOE-EERE and Rutgers as well as from the NSF-IGERT

sustainable fuels fellowship.

1. Gardner, G., Al-Sharab, J., Danilovic, N., Go, Y.B., Ayers, K., Greenblatt, M., Dismukes, G.C., “Structural

basis for differing water oxidation by the cubic, layered, and spinel forms of lithium cobalt oxides”, Energy and Environmental Science, 2016, 9, 184-192.

2. Smith, P.F., Beibert, B.J., Kaushik, S., Gardner, G., Hwang, S., Wang, H., Al-Sharab, J.F., Garfunkel, E., Fabris, L., Li, J., Dismukes, G.C., “Coordination Geometry and Oxidation State Requirements of Corner Sharing MnO6 Octahedra for Water Oxidation Catalysis: An Investigation of Manganite (γ-MnOOH)”, ACS Catalysis, 2016, 6, 2089-2099.




NANOTECHNOLOGY


7) TEM-EELS Study of NCA Battery Cathode and Standard Material Alexander Kong*, Pinaki Mukherjee, Nathalie Pareira, Glenn Amatucci and Frederic

Cosandey

Materials Science and Engineering, Rutgers University

In recent years, LiNi0.8Co0.15Al0.05O2 (NCA) has been used commercially in consumer

products such as in Tesla motor vehicles. This commercial interest has increased the

desire to develop better properties for NCA such as higher capacity. Undesirable surface

phases such as rock salt limit the capacity of current cathodes. Our study involves using

TEM and EELS to study crystal structure, composition, and morphology. Our present

work measures the above mentioned parameters using standard oxide materials as

reference for valence states and composition to determine the exact nature of the surface

phases.

8) New Layered Honeycomb Tellurates: PbMn(IV)TeO6 and BiM(III)TeO6

(M = Cr, Fe) Sun Woo Kim

1, Zheng Deng

1, Man-Rong Li

1, Zachary Fischer

1, Arnab Sen Gupta

2,

Hirofumi Akamatsu2, Saul H. Lapidus

3, Peter W. Stephens

4, Venkatraman Gopalan

2,

Corey Evans1, Xiaoyan Tan

1 and Martha Greenblatt

1


2Department of

Materials Science and Engineering, Pennsylvania State University, University

Park,3Advanced Photon Source, Argonne National Laboratory and

4Department of

Physics & Astronomy, State University of New York, Stony Brook

New layered honeycomb tellurates, PbMn(IV)TeO6 and BiM(III)TeO6 (M = Cr, Fe) were

successfully synthesized and characterized. The crystal structure of PbMn(IV)TeO6 is

hexagonal, space group P-62m (No. 189) and consists of edge sharing (Mn4+

/Te6+

)O6

trigonal prisms, which form honeycomb-like two-dimension layers with Pb2+

ions

between the layers. Temperature dependent second harmonic generation of PbMnTeO6

confirmed noncentrosymmetric character between 12 and 873 K. Magnetic measurements

indicate anti-ferromagnetic order at TN TN) of

~2.16.

The BiM(III)TeO6 (M = Cr, Fe) crystallize in trigonal space group, P-31c (No. 163) and

the structure consist of edge-sharing M3+

/Te6+

O6 octahedra (M= Cr or Fe), which form

honeycomb-like double layers in the ab-plane with Bi3+

cations (BiO6 octahedra) located

between the layers. The structure of BiM(III)TeO6 is a superstructure of PbSb2O6-related

materials (ABB'O6). Although both materials are isotypic, the Cr3+

(d3) phase is partially

ordered (Cr : Te = 68 : 32), while the Fe3+

(d5) analog is nearly complete ordered (Fe : Te

= 90 : 10) on the octahedral B sites; the difference is attributed to electronic effect of M3+

(M = Cr, Fe) ions. BiCrTeO6 shows a broad antiferromagnetic transition at ~17 K with

TN) of ~3.52, while BiFeTeO6 shows a sharp

TN) of ~2.50.




NANOTECHNOLOGY


9) Fabrication and Characterization of Nanowires using a Helium Ion

Microscope Takane Kobayashi

1,2, Hao Wang

2, Slava Manichev

2, Wen Sen Lu


2

and Leonard C. Feldman3

1RIKEN, Wako, Japan,


3Institute for

Advanced Materials, Devices and Nanotechnology, Rutgers University

We present initial results of fabrication of nanowires using a helium ion microscope

(HIM) in combination with a gas injection system. The basic process exploits the

transformation of a metal carbonyl to a metal by irradiation with an ionizing beam.

Typical wires are ~20nm diameter and ~1 micron long, and may contain impurities

associated with the incomplete radiative-chemical process. The NWs are characterized

by in-situ transport measurements. In order to check the performance of the system, the

dependence of resistance on irradiation dose was measured. As the result, it is found that

the system functions effectively in nanodevice developments.

10) A Novel Stress Measurement Method and Oxidation Induced Stress at the

SiO2/SiC Interface Xiuyan Li

1,3, Alexei Ermakov

1, Voshadhi Amarasinghe


2,3, Leonard

C Feldman2,3

and Eric, Garfunkel1,3


2Department of Physics and Astronomy

and 3Institute for Advanced Materials, Devices and Nanotechnology, Rutgers University

The SiO2/SiC interface exhibits a high defect density limiting the performance of 4H-SiC

MOSFETs. It has been suggested that the defects are caused by process-induced stress

associated with oxidation. It is also known that adding N to the interface reduces defect

density. One hypothesis is that nitrogen incorporation relaxes the stress, which in turn

lowers the defect density. We present a new results on stress for the SiO2/SiC system with

and without N at the interface. We also introduce a novel and practical optical method to

measure stress in thin films.

11) Observation of Quasielastic Peaks in Raman Scattering Study of CeB6 Mai Ye

1*, Alexander Lee

1, Hsiang-Hsi Kung

1, Girsh Blumberg

1,2, Priscila F. S. Rosa

3,

Joe D. Thompson3, Eric D. Bauer

3 and Zachary Fisk

4

1Department of Physics and Astronomy, Rutgers University,

2National Institute of

Chemical Physics and Biophysics, Tallinn, Estonia, 3Los Alamos National Laboratory,

NM and 4Department of Physics and Astronomy, University of California

The heavy-fermion compound CeB6 undergoes a second-order phase transition from a

high-temperature paramagnetic phase into an antiferroquafrupolar (AFQ) phase at 3.2 K

before entering an antiferro-magnetic (AFM) phase below 2.3K. By polarization-resolved

Raman scattering studies we observed that imaginary Raman susceptibility has

quasielastic peaks in both Eg and T1g symmetry channels. The corresponding static real

Raman susceptibility shows tendency of divergence towards low temperature. The basis

functions of the Eg and T1g symmetry channels have similarity with the order parameters

of AFQ and AFM phases, respectively. This suggests that the divergence in the two

symmetry channels correspond to the phase transitions of CeB6.




NANOTECHNOLOGY


12) Stepwise Detection of Antigens Using Aptamer Triggered DNAzyme Signal

Amplification Tianran Li* and Jinglin Fu

The Center for Computational and Integrative Biology, Rutgers University - Camden

DNA aptamers are target-specific duplex sequences which change conformation after

binding to target. Such property could be applied to engineer stepwise bio-sensing

reaction cascades, for instance, introducing the releasing of the target sensing strand

while the conformational change of aptamer-complement duplex is triggered from

aptamer-to-target binding followed with triggered hybridization chain reaction (Figure

1). On the streptavidin bead surface, sequential assembled localized adenosine aptamer

changes conformation after binding to adenosine or cocaine, thus releases the initiator-

sensoring strand which is semi-complementary to the aptamer strand. The released

initiator-sensing strand could act as the initiator of a hybridization chain reaction via

binding to the sticky end of HCR hairpin 2 probe strand which is partially complementary

to the initiator and the pre-conjugated to one unit of the glucose-6-phosphate

dehydrogenase (G6PDH) and remains stable without initiator. The HCR hairpin 2 strand

is then opened up and its newly exposed end nucleates at the sticky end of HCR hairpin

1, conjugated to the cofactor nicotinamide adenine dinucleotide (NAD+), and opens the

hairpin to expose the end of it. As conjugated hairpins propagate to form an elongated

nicked double helix, the G6PDH and NAD+ are brought together thus form complete

DNAzymes with amplified enzymatic signals. Such a DNAzyme chain reaction initiated

by the released initiator-sensing strand, could potentially be used to sense target

molecules in low concentrations with promising output.




NANOTECHNOLOGY


13) Pattering of SiC Surfaces by a Helium Ion Microscope Hao Wang

1,2, Ethan Torrey

3, Mengjun Li

4, Can Xu

1,2, Voshadhi Amarasinghe

2, Eric

Garfunkel2,4

, Torgny Gustafsson1,2

, Philip I. Cohen3 and Leonard C. Feldman

1,2


2Institute for Advanced Materials, Devices and

Nanotechnology (IAMDN), 3Department of Electrical and Computer Engineering,

University of Minnesota and 4Department of Chemistry & Chemical Biology, Rutgers

University

A helium ion microscope (HIM) provides the capability of precise manipulation of a 30

keV He ion beam with sub-nanometer beam width, which can be used in lithography

applications. Here we report resist-free patterning of SiC surfaces combining selective

He-ion-induced amorphization and different oxidation rates between amorphous and

crystalline SiC. In comparison to previous studies using a ~ 10 nm Ga beam, which

produces features of ~ 50 nm, we have improved the lateral feature size to be less than 20

nm. Silicon carbide surfaces patterned with periodical arrays of pillars have also been

used as substrates for mounting mono-layer graphene films to investigate strain-induced

electronic properties of grapheme. Our preliminary Raman spectroscopy measurements

show that graphene on a patterned area has a more uniform distribution of the 2D peak

position (around 2700 cm-1

) versus an unpatterned area.

14) Microspatial Control of Mineralization via Covalent Immobilization of Nacre

Proteins onto Poly(ethylene glycol) Hydrogels Kristopher White

1* and Ronke Olabisi

2

1Department of Chemical and Biochemical Engineering, Rutgers University and

2Department of Biomedical Engineering, Rutgers University

Current research efforts in orthopaedic regenerative medicine are aimed at reducing the

dosage of therapeutic compounds necessary to achieve practical results. Seashell proteins

have been shown to be non-immunogenic clinical alternatives to the recombinant bone

morphogenetic proteins currently used. These proteins are associated with both the

cellular and acellular processes involved in bone regeneration. Here, proteins extracted

from the water soluble matrix of nacre are used to demonstrate microspatially controlled

mineralization when patterned onto a Poly(ethylene glycol) substrate, indicating potential

for several therapeutic applications. The data also indicate that both acellular and cellular

processes are involved in achieving the observed microspatial control.

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