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- Title
Numerical study of eco-friendly Sn-based Perovskite solar cell with 25.48% efficiency using SCAPS-1D.
- Authors
Jaiswal, Raj; Ranjan, Rahutsoh; Srivastava, Neelabh; Sharma, Arvind Kumar; Yoshimura, Masamichi; Chang, Li; Tiwari, Rajanish N.
- Abstract
Today’s perovskite-based solar cells (PSCs) have become the fastest growing photovoltaic cells. The lead (Pb)-based PSCs attain the best efficiency, but despite their many advantages, these SCs have a major issue of its toxicity. The issue of toxicity is solved by using Pb-free perovskite material. Here, solar cell architecture comprising Pb-free perovskite, FTO/TiO2/CH3NH3SnI3/CZTS/Au is discussed. A fluorine-doped tin oxide (FTO) is used as a transparent conducting window layer and gold is used as a back contact. Titanium dioxide (TiO2) is used as an electron transport layer (ETL), while copper zinc tin sulfide (CZTS) is used as a hole transport layer (HTL). The PSC is simulated by using Solar Cell Capacitance Simulator (SCAPS-1D) software. The thickness of the absorber (CH3NH3SnI3) layer, ETL and HTL is varied. The operating temperature is also varied from 300 and 350 K. The best-chosen values of the acceptor density of absorber layer and HTL are 1016 cm−3 and 1019 cm−3, respectively, while the optimized donor density (ND) of ETL is 1020 cm−3. The solar cell performance decreases with the increase in defect density (Nt). The performances of solar cell with and without HTL are also discussed, and maximum efficiency is achieved after the introduction of HTL. The designed Sn-based PSC exhibits the highest efficiency of 25.48% with an open-circuit voltage = 0.99 V, short-circuit current = 32.95 mA/cm2 and fill factor = 77.77%.
- Publication
Journal of Materials Science: Materials in Electronics, 2023, Vol 34, Issue 8, p1
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-023-10171-w