In this paper a numerical modelling guide is proposed about how to improve the efficiency of experimentally designed solar cells with the aid of numerical analysis. To validate the study presented in this paper, we first reproduce the results for experimentally designed solar cell in SCAPS with solar cell structure p-SnS/n-CdS having a conversion efficiency of 1.5%. After this device performance was optimized in solar cell capacitance simulator (SCAPS) by changing absorber layer thickness, buffer layer thickness, minority carrier lifetime, absorber acceptor doping concentration, buffer donor doping concentration and adding window layer. After optimization of physical device parameters and structure the new solar cell structure p-SnS/n-CdS/n-ZnO achieves power conversion efficiency (PCE) of 14.01% in SCAPS.
Applied Physics A: Materials Science Processing – Springer Journals
Published: Jun 5, 2018
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