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Lead-free organic inorganic halide perovskite solar cell with over 30% efficiency

A. Islam, Department of Materials Science and Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh, N. Bin Alamgir, S. I. Chowdhury, S. M. B. Billah, Department of Electrical and Electronic Engineering, East Delta University, Abdullah Al Noman Road, Noman Society, East Nasirabad, Khulshi, Chattogram 4209, Bangladesh, Department of Electrical and Electronic Engineering, East Delta University, Abdullah Al Noman Road, Noman Society, East Nasirabad, Khulshi, Chattogram 4209, Bangladesh, Department of Electrical and Electronic Engineering, East Delta University, Abdullah Al Noman Road, Noman Society, East Nasirabad, Khulshi, Chattogram 4209, Bangladesh
2022 Journal of Ovonic Research  

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In this study, numerical analysis on an Sn-based planner heterojunction perovskite device structure of Glass/ FTO/ ZnO/ CH3NH3SnI3/ CZTS/ Metal, with CH3NH3SnI3 as an absorber layer, was performed by using the solar cell device simulator SCAPS 1D. As an electron transport layer (ETL) and a hole transport layer (HTL), inorganic materials ZnO and CZTS (kesterite) were used. To optimize the device, the thickness of the absorber, electron, and hole transport layers, defect density, and absorber
more » ... ng concentrations were varied, and their impact on device performance was evaluated. The effect of temperature and work function of various anode materials were also investigated. The optimum absorber layer thickness was found at 750 nm for the proposed structure. The acceptor concentration with a reduced defect density of the absorber layer enhances device performance significantly. For better performance, a higher work function anode material is required. The optimized solar cell achieved a maximum power conversion efficiency of 30.41% with an open-circuit voltage of 1.03 V, a short circuit current density of 34.31 mA/cm2, and a Fill Factor 86.39%. The proposed cell structure also possesses an excellent performance under high operating temperature indicating great promise for eco-friendly, low-cost solar energy harvesting.
doi:10.15251/jor.2022.183.395 fatcat:ww6mmzzgrfdntmrwlbukjhcqh4
Citation

A. Islam, Department of Materials Science and Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh, N. Bin Alamgir, S. I. Chowdhury, S. M. B. Billah, Department of Electrical and Electronic Engineering, East Delta University, Abdullah Al Noman Road, Noman Society, East Nasirabad, Khulshi, Chattogram 4209, Bangladesh, Department of Electrical and Electronic Engineering, East Delta University, Abdullah Al Noman Road, Noman Society, East Nasirabad, Khulshi, Chattogram 4209, Bangladesh, Department of Electrical and Electronic Engineering, East Delta University, Abdullah Al Noman Road, Noman Society, East Nasirabad, Khulshi, Chattogram 4209, Bangladesh. "Lead-free organic inorganic halide perovskite solar cell with over 30% efficiency." Journal of Ovonic Research 18.3 (2022) 395-409