Improvement of efficiency in CZTSSe solar cell by using back surface field

2nd International Conference on Materials Science and Technology

Kumar, Atul^1 ; Thakur, Ajay D.^1

Department of Physics, Indian Institute of Technology Patna, Bihta

801118, India^1

关键词: Back surface fields;    Cell capacitance;    Higher efficiency;    Kesterites;    P-n structure;    Simulated performance;    Standard cell;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/360/1/012027/pdf
DOI  :  10.1088/1757-899X/360/1/012027

来源: IOP

【 摘 要 】

A kesterite CZTS based solar cell is studied with back surface field. In order to achieve this, a p+ layer of SnS is added to the standard cell configuration. The resulting p+-p-n configuration of SnS/CZTS/CdS is studied using Solar Cell Capacitance Simulator (SCAPS). Low Voc is responsible for lower efficiencies of kesterite solar cells. The proposed p+-p-n structure increases the Voc and thus the efficiency. Simulation of CZTSSe and CZTS with back surface p+ layer has shown considerably higher efficiency than the highest reported value for kesterite cell of CZTSSe from 12.3% to 15.7%. A comparative summary is presented with literature reported performance and our simulated performance for kesterite cell.