A Comprehensive Analysis of Eco-Friendly Cs2SnI6 Based Tin Halide Perovskite Solar Cell through Device Modeling

被引：46
作者：
Pal, Debashish [1 ,2 ]
机构：
[1] Tripura Univ, Dept Mat Sci & Engn, Agartala 799022, India
[2] Edinburgh Napier Univ, Sch Comp Engn & Built Environm, Edinburgh EH10 5DT, Scotland
来源：
ADVANCED THEORY AND SIMULATIONS | 2023年 / 6卷 / 03期
关键词：
Cs2SnI6; double halide perovskite; nonradiative recombination; perovskite solar cell; SCAPS; PERFORMANCE ANALYSIS; EFFICIENCY; AIR;
D O I：
10.1002/adts.202200856
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The choice of appropriate materials is of paramount importance in realizing a high efficiency perovskite solar cell. Lead free eco-friendly perovskite solar cell architecture is theoretically investigated using solar cell capacitance simulator (SCAPS) for device performance. Preliminary investigations on Cs2SnI6 solar cell architectures have indicated that the presence of hole transport layer is crucial in achieving an open-circuit voltage greater than 0.6 V. The presence of a valence band offset between the Cs2SnI6 absorber and hole transport layer has a significant detrimental impact on the short-circuit current density and fill factor of the cell. A novel device architecture employing TiO2 as an electron transport material and Cu2O as a hole transport material is proposed to overcome the limitations associated with the current designs. Theoretical investigations are carried out employing 1D SCAPS simulation program in order to optimize the structure by varying the perovskite thickness, bandgap, and defect concentration. The proposed solar cell after optimization has a practically realizable power conversion efficiency of 17.77%.
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页数：10
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