The Improved Performance with Reduction in Toxicity in CIGS Solar Cell Using Ultra-thin BaSi2 BSF Layer
| Authors | Km. Kanchan, Anupam Sahu, Shivangi Yadav |
| Affiliations |
Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology Gorakhpur, India |
| Е-mail | kanchanjaiswal933@gmail.com |
| Issue | Volume 15, Year 2023, Number 2 |
| Dates | Received 03 March 2023; revised manuscript received 18 April 2023; published online 27 April 2023 |
| Citation | Km. Kanchan, Anupam Sahu, Shivangi Yadav, J. Nano- Electron. Phys. 15 No 2, 02025 (2023) |
| DOI | https://doi.org/10.21272/jnep.15(2).02025 |
| PACS Number(s) | 88.40.jm |
| Keywords | CIGS (11) , Cd0.6Zn0.4S, ZnSe (11) , Thin-film solar cell, Conversion Efficiency (4) , SCAPS-1D (22) . |
| Annotation |
In this article, the thin-film solar cell (TFSC) based on Copper-Indium-Gallium-Diselenide (CIGS) absorber layer and low-cost ultra-thin BaSi2 Back Surface Field (BSF) with the framework of Al/SnO2:F/buffer-layer/CIGS/BaSi2/Mo/Substrate have been proposed. To enhance the performance and reduce the toxicity, the Cd0.6Zn0.4S (alloy of CdS and ZnS) and ZnSe have been used as suitable buffer layers as a replacement for conventional toxic CdS buffer layers. The proposed TFSC also aims to be cost-effective, therefore the thickness of the CIGS layer has been optimized (varied from 0.1-1 m). With the Cd0.6Zn0.4S and ZnSe buffer layers, the proposed TFSC achieves the maximum conversion efficiency (CE) of 28.11 % and 27.72 %, respectively for the optimized CIGS thickness of 0.8 m and BaSi2 BSF layer thickness of 0.3 m. Further, the proposed TFSC has been investigated for variation in defect density of the CIGS absorber layer. Additionally, the results obtained for the proposed TFSC show improvement in the performance from the previously reported CdS-based TFSC. |
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List of References |
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