Micro-Raman and Cathodoluminescence Microscopy and ......Applications of Cathodoluminescence •...

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Micro-Raman and Cathodoluminescence Microscopy and Spectroscopy Zhiheng Liu and Matt DeLong Department of Physics and Astronomy, University of Utah

Transcript of Micro-Raman and Cathodoluminescence Microscopy and ......Applications of Cathodoluminescence •...

Page 1: Micro-Raman and Cathodoluminescence Microscopy and ......Applications of Cathodoluminescence • Light emitting diodes – Gives emission spectra as a function of position on the micron

Micro-RamanandCathodoluminescence

MicroscopyandSpectroscopy

Zhiheng LiuandMattDeLongDepartment ofPhysicsandAstronomy,UniversityofUtah

Page 2: Micro-Raman and Cathodoluminescence Microscopy and ......Applications of Cathodoluminescence • Light emitting diodes – Gives emission spectra as a function of position on the micron

Micro-RamanandPhotoluminescenceSpectroscopyandMicroscopy

• WiTecAlphaSNOMsystem• Sub-micronspatialresolution• 2D-scancapabilityforspectral

imaging• Multiplelaserlinesfor

excitation

Page 3: Micro-Raman and Cathodoluminescence Microscopy and ......Applications of Cathodoluminescence • Light emitting diodes – Gives emission spectra as a function of position on the micron

Micro-RamanofGraphene

Sisubstrate

Laser line

Gband

2Dband

Page 4: Micro-Raman and Cathodoluminescence Microscopy and ......Applications of Cathodoluminescence • Light emitting diodes – Gives emission spectra as a function of position on the micron

Spectralimageofnanowire

Page 5: Micro-Raman and Cathodoluminescence Microscopy and ......Applications of Cathodoluminescence • Light emitting diodes – Gives emission spectra as a function of position on the micron

Cathodoluminescence inSEM

Page 6: Micro-Raman and Cathodoluminescence Microscopy and ......Applications of Cathodoluminescence • Light emitting diodes – Gives emission spectra as a function of position on the micron

ApplicationsofCathodoluminescence

• Lightemittingdiodes– Givesemissionspectraasafunctionofpositiononthemicronscale

• Geology– Analysisofzircons,quartzandother luminescentmaterialsonthe

deepsubmicronscale– Infergeologicalhistory

• LuminescenceimagingwithnanoscalespatialresolutionprovidedbySEM.

• Illuminatesstructuresnotvisibleinsecondaryelectronimages.

• Givesdetailedinformationoncomposition(viaspectraandemissionintensities)notpossiblebyothertechniques.

Page 7: Micro-Raman and Cathodoluminescence Microscopy and ......Applications of Cathodoluminescence • Light emitting diodes – Gives emission spectra as a function of position on the micron

SecondaryElectronImageofZircon

All-LightCLImageofZircon

Page 8: Micro-Raman and Cathodoluminescence Microscopy and ......Applications of Cathodoluminescence • Light emitting diodes – Gives emission spectra as a function of position on the micron

ZirconEmissionSpectrumfrom300to1000nm


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What is the Pulsed Cathodoluminescence?

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Cathodoluminescence Studies of Electron Injection Effects

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Cathodoluminescence (CL) behaviour and crystal chemistry - RRuff

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THE TECHNIQUE OF MACROPHOTOGRAPHY IN CATHODOLUMINESCENCE STUDIES

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Scanning electron microscope cathodoluminescence imaging ... · Cathodoluminescence · Subgrain boundaries · Twin boundaries Introduction Quartz is one of the main constituents of

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Cathodoluminescence Brief Overview

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Cathodoluminescence of Sierran Feldspars: JADE STAR …excitingelectrons.com/files/Relion-Poster_4_CL_Poster... · 2012-09-22 · Cathodoluminescence of Sierran Feldspars: Crystallization

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Water filtrationsimplified. TM… · CT-1005-IO: 10 micron to 5 micron CT-2010-IO: 20 micron to10 micron CT-5020-IO: 50 micron to 20 micron Depth filtration down to 5 micron in a

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Cathodoluminescence microcharacterization of ballen silica in … · 2016-08-03 · Cathodoluminescence microcharacterization of ballen silica in impactites T. Okumuraa, A. Gucsikb,

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Heterogeneous integration of gallium nitride light ... · *antonio.trindade@strath.ac.uk Abstract: We report the transfer printing of blue-emitting micron-scale light-emitting diodes

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PETROGRAPHIC AND OPTICAL CATHODOLUMINESCENCE STUDY · PDF filePETROGRAPHIC AND OPTICAL CATHODOLUMINESCENCE STUDY OF DETRITAL ... the stratigraphy of the Anambra Basin) ... Petrographic

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Cathodoluminescence and Depth

Cathodoluminescence and Depth

Research Article Cathodoluminescence and Raman ...downloads.hindawi.com/journals/ijs/2016/1751730.pdf · Research Article Cathodoluminescence and Raman Spectromicroscopy of Forsterite

Research Article Cathodoluminescence and Raman ...downloads.hindawi.com/journals/ijs/2016/1751730.pdf · Research Article Cathodoluminescence and Raman Spectromicroscopy of Forsterite

Scanning Electron Microscope-cathodoluminescence (SEM-CL) Imaging

Scanning Electron Microscope-cathodoluminescence (SEM-CL) Imaging

Cathodoluminescence Quantum Efficiency of Quantum Dot …

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PR OD - Sign & supply · 100 Micron Matte Effects & Matte Finishes 89 Micron Satin Colors 89 Micron Candy Colors 122 Micron Brushed Metal 173 Micron Carbon Fiber 100 Micron Silver

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Cathodoluminescence petrography and isotope geochemistry ...eps.berkeley.edu/~platetec/131.pdf · Cathodoluminescence petrography and isotope geochemistry of KT impact ejecta deposited

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