Effect of Parametric Variation on Performance of NFA Organic Solar Cell: A Simulation Study
Authors :- S Dave, SV Patil, K Bhargava
Publication :- Proceedings of 28th National Conference on Condensed Matter Physics. Springer Proceedings in Physics, vol 269. Springer, 2021.
The organic bulk heterojunction non-fullerene acceptor (NFA) solar cells have attracted great interest among researchers as they provide a higher degree of stability and better efficiency over their fullerene-based counterparts. However, a shallow simulation effort has been made for understanding the impact of intrinsic parameters on performance of NFA based organic solar cells. This work provides a comprehensive study on a traditional p-i-n structure of a cell that utilizes (ITIC):3,9-bis (2-methylene(3- (1,1-dicyanomethylene) -indanone)—5,5,11,11-tetraki (4-hexyl phenyl)-di-thieno [2,3d:2,3-d]-s-indaceno [1,2-b:5,6 b’] di-thiophene) as NFA and poly [(2,6-(4,8-bis (5(2-Ethylhexyl) thiophene-2-yl) benzo [1,2-b:4,5b] di-thiophene)-co-(1,3-di (5-thiophene2-yl)-5,7-bis (2-Ethylhexyl) benz 1,2-c:4,5-c] di-thiophene-4,8-dione)] (PBDB-T) as polymeric donor. We have studied the aftermath of variation of various parameters of an organic solar cell on the power conversion efficiency, open-circuit voltage, short circuit current density, and fill factor of solar cell. The work is divided into three phases; in the first phase, the effect of the thickness of absorber layer on the performance parameters is analyzed. The second phase emphasizes on the effect of change in electron and hole mobility on solar cell efficiency and the third phase concentrates on the variation of bulk and interfacial defect density on performance parameters of the cell.