Simulation of highly efficient GeSe-based solar cells with SCAPS-1D

Zhi-Ping Huang; You-Xian Chen; Zi-Heng Huang; Wen-Wei Lin; Yu Mao; Li-Mei Lin; Li-Quan Yao; Hu Li; Li-Ping Cai; Gui-Lin Chen

doi:10.1016/j.heliyon.2023.e18776

Simulation of highly efficient GeSe-based solar cells with SCAPS-1D

Heliyon. 2023 Jul 28;9(8):e18776. doi: 10.1016/j.heliyon.2023.e18776. eCollection 2023 Aug.

Authors

Zhi-Ping Huang¹, You-Xian Chen¹, Zi-Heng Huang², Wen-Wei Lin¹, Yu Mao¹, Li-Mei Lin^{1

2}, Li-Quan Yao^{1

2}, Hu Li¹, Li-Ping Cai³, Gui-Lin Chen^{1

2}

Affiliations

¹ Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, College of Physics and Energy, Fujian Normal University, Fuzhou, 350117, China.
² Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fuzhou, 350117, China.
³ College of Computer and Cyber Security, Fuzhou, 350117, China.

Abstract

Recently GeSe has developed as a promising light harvesting material by enjoying to its optical and electrical features as well as earth-abundant and low-toxic constituent elements. Nevertheless, the power conversion efficiency of GeSe-based solar cells yet lags far behind the Shockley-Queisser limit. In this work, we systematically designed, simulated and analyzed the highly efficient GeSe thin-film solar cells by SCAPS-1D. The influence of thickness and defect density of light harvest material, GeSe/CdS interface defect density, electron transport layer (ETL), electrode work function and hole transport layer (HTL) on the device output are carefully analyzed. By optimizing the parameters (thickness, defect, concentration, work function, ETL and HTL), an impressive PCE of 17.98% is delivered along with Jsc of 37.11 mA/cm², FF of 75.53%, Voc of 0.61 V. This work offers theoretical guidance for the design of highly efficient GeSe thin film solar cells.

Keywords: Device simulation; GeSe; SCAPS; Thin film solar cell.