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Improve the performance of CZTSSe solar cells by applying a SnS BSF layer

Title
Improve the performance of CZTSSe solar cells by applying a SnS BSF layer
Authors
Omrani, Mir KazemMinbashi, MehranMemarian, NafisehKim, Dae Hwan
DGIST Authors
Kim, Dae Hwan
Issue Date
ACCEPT
Citation
Solid-State Electronics
Type
Article
Article Type
Article in Press
Keywords
AluminumComputer simulationOpen circuit voltageSolar cellsTin compoundsBack surface fieldsCell structureFill factorOptimum parametersOptimum valuePhysical parametersSelenium compounds
ISSN
0038-1101
Abstract
In this study, the CZTSSe (Cu2ZnSn(S,Se)4) solar cells, with Al/ZnO:Al/ZnO (i)/CdS/CZTSSe/Mo structure, have been simulated. The simulation results have been compared and validated with real experimental results. Next, suggestions for improving the performance of CZTSSe solar cell have been provided. A SnS layer has been used as back surface field (BSF) layer. Different physical parameters of SnS layer are investigated, and the optimum values are selected. It has been found that by inserting a BSF layer with optimum parameters, the efficiency of CZTSSe solar cell increases from 12.3% to 17.25% due to enhancement of both short-circuit current density (Jsc) and open circuit voltage (Voc). For this optimized cell structure, the maximum Jsc = ~37.37 mA/cm2, Voc = ~0.605 V, and fill factor = 76.28% are obtained under 1.5 AM illumination. © 2017 Elsevier Ltd.
URI
http://hdl.handle.net/20.500.11750/5583
DOI
10.1016/j.sse.2017.12.004
Publisher
Elsevier Ltd
Related Researcher
Files:
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Collection:
Convergence Research Center for Solar Energy1. Journal Articles


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