Improvement of the Sb2Se3/Si tandem cell and simulation in SCAPS

Zuhair Dhnoon Mohammed * and Ayed Najem Saleh

Department of Physics, College of Education for Pure Sciences, Tikrit University, Iraq.
 
Review Article
Global Journal of Engineering and Technology Advances, 2023, 17(03), 045–053.
Article DOI: 10.30574/gjeta.2023.17.3.0246
Publication history: 
Received on 09 November 2023; revised on 22 December 2023; accepted on 25 December 2023
 
Abstract: 
In the work, tandem solar cells were designed to achieve improved efficiency using Sb2Se3/Si as the materials. The work involved simulating the Sb2Se3/Si structures, where Sb2Se3 served as the top cell and Si as the bottom cell, under AM1.5 G solar spectrum illumination using the one-dimensional device simulator Scaps. The obtained results demonstrated a significant increase in the efficiency of the Sb2Se3/Si tandem solar cell. Initially, the top cell had an efficiency of 14.29%, while the bottom cell had an efficiency of 11.22% when considered as single cells in a row. When used in tandem, the efficiency of the Sb2S3/Si tandem cell improved to 14.6%. Additionally, there were notable improvements in the electrical parameters of the solar cell. The overall efficiency (ƞ) reached 21.41%, the open-circuit voltage (Voc) was 1.37volts, the short-circuit current density (Jsc) was 19.78 mA/cm2, and the fill factor (FF) reached 78.62%. These results highlight the success of the Sb2S3/Si tandem solar cell in achieving higher efficiency and improved electrical performance compared to single cells.
 
Keywords: 
Solar cell; Tandem; Sb2Se3/Si; SCAPS-1D
 
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