Low Cost and Durable Perovskite Solar Cells
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Virginia Commonwealth University VCU Scholars Compass Capstone Design Expo Posters College of Engineering 2017 Low Cost and Durable Perovskite Solar Cells Jack Carli Virginia Commonwealth University Kapil Marahaa Virginia Commonwealth University Feras Kakish Virginia Commonwealth University Jason McAleese Virginia Commonwealth University Follow this and additional works at: hps://scholarscompass.vcu.edu/capstone Part of the Electrical and Computer Engineering Commons © e Author(s) is Poster is brought to you for free and open access by the College of Engineering at VCU Scholars Compass. It has been accepted for inclusion in Capstone Design Expo Posters by an authorized administrator of VCU Scholars Compass. For more information, please contact [email protected]. Downloaded from hps://scholarscompass.vcu.edu/capstone/201
Transcript of Low Cost and Durable Perovskite Solar Cells
Virginia Commonwealth UniversityVCU Scholars Compass
Capstone Design Expo Posters College of Engineering
2017
Low Cost and Durable Perovskite Solar CellsJack CarliVirginia Commonwealth University
Kapil MarahattaVirginia Commonwealth University
Feras KakishVirginia Commonwealth University
Jason McAleeseVirginia Commonwealth University
Follow this and additional works at: https://scholarscompass.vcu.edu/capstone
Part of the Electrical and Computer Engineering Commons
© The Author(s)
This Poster is brought to you for free and open access by the College of Engineering at VCU Scholars Compass. It has been accepted for inclusion inCapstone Design Expo Posters by an authorized administrator of VCU Scholars Compass. For more information, please contact [email protected].
Downloaded fromhttps://scholarscompass.vcu.edu/capstone/201
Solar Energy Potential
Why Perovskite Solar Cells
Device Schematic &Band Structure
Low Cost and Durable Perovskite Solar CellsECE 402 | Team Members: Jack Carli, Kapil Marahatta, Feras Kakish, Jason McAleese | Faculty Advisers: Dr. Ümit Özgür and Dr. Vitaliy Avrutin Sponsor: Night Vision and Electronic Sensors Directorate | Sponsor Advisers: Dr. Randy Jacobs and Andre Slonopas
Design Considerations
Solar electrical generation: U.S 0.6% vs Germany 7.0%
U.S. Consumes 4 trillion ⁄𝑘𝑘𝑘𝑘 ∗ ℎ𝑟𝑟 𝑦𝑦𝑟𝑟
VA potential-⁄1600 𝑘𝑘𝑘𝑘 ∗ ℎ𝑟𝑟 (𝑚𝑚2𝑦𝑦𝑟𝑟)
Germany potential-⁄1050 𝑘𝑘𝑘𝑘 ∗ ℎ𝑟𝑟 (𝑚𝑚2𝑦𝑦𝑟𝑟)
Solar Installations in US
Rapid increase in efficiency
Low production cost
Simple & scalable fabrication
Light weight & flexible substrates
AB
Small Recon UAV for covert missions
Providing power to sensors that help protect the warfighter
Powering motor and sensors for land or sea autonomous vehicles
Potential Military Application
Acknowledgements Our team would like to thank Barkat Ullah for his guidance in device fabrication and Ramendra Pal for helping with processes involving conducting polymers.
I-V Characteristic
Deposition of Perovskite
Deposition of PCBM
Applyingcontacts
255% Increase
0
4000
8000
12000
16000
20000
2010 2011 2012 2013 2014 2015 2016
New
Inst
alla
tions
(MW
)
SolarNatural Gas
Fabrication Procedure
Methylammonium Lead Iodide -𝐶𝐶𝐶𝐶3𝑁𝑁𝐶𝐶3𝑃𝑃𝑃𝑃𝑃𝑃3
Major problem: rapid degradation under moisture and UV irradiation
Degradation caused by organic components
Proposed Solution Photon conversion
layer (PCL):• Efficiency
increased by harvesting UV light
• Provides encapsulation from humidity
Deposition of PEDOT:PSS
HTL
FTOETL
Cu-4.7 eV
-5.4 eV
Eg~1.6 eV
Cu
0
10
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300 400 500 600 700 800
IPCE
%
Wavelength
UV Visible IR
Measured:(small area devices)
𝑉𝑉𝑜𝑜𝑜𝑜 = 0.715 𝑉𝑉𝑃𝑃𝑠𝑠𝑜𝑜 = 1.25 𝑥𝑥 10−8 𝐴𝐴
Potential:𝑉𝑉𝑜𝑜𝑜𝑜 = 0.96 𝑉𝑉
𝑃𝑃𝑠𝑠𝑜𝑜 = 18.8 𝑚𝑚𝐴𝐴 ∗ 𝑐𝑐𝑚𝑚−2
𝐹𝐹𝐹𝐹 = 72 %
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25000
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720 740 760 780 800 820
Inte
nsity
(arb
itrar
y un
its)
Wavelength (nm)
532 nm excitation-150 mW/𝑐𝑐𝑚𝑚2
Sun- AM1.5 Global 100 mW/𝑐𝑐𝑚𝑚2
Peak λ ~ 770 nm
𝐸𝐸𝑔𝑔 = 1.61 𝑒𝑒𝑉𝑉
Photoluminescence
SEM Cross Sectional Images Actual Thicknesses
HTL~ 100 nm
Active ~ 1000nm
ETL~ 500 nm
Desired Thicknesses
HTL ~ 150 nm
Active~ 350 nm
ETL ~ 100 nm
PCBMPerovskitePEDOT:PSSFTO
Glass
Before Humidity Exposure
After Humidity Exposure
-1.E-08
-1.E-08
-1.E-08
-8.E-09
-6.E-09
-4.E-09
-2.E-09
0.E+00
2.E-09
-0.15 0.05 0.25 0.45 0.65 0.85
Curr
ent (
A)
Voltage (V)
No Illumination
