ADDITIVE IMPROVES PERFORMANCE OF WIDE BANDGAP PEROVSKITE SOLAR CELLS

被引：0
|
作者：
Li Z. [1 ]
Feng X. [1 ]
Chen X. [1 ]
Liu X. [1 ]
Dai S. [1 ]
Cai M. [1 ]
机构：
[1] School of New Energy, North China Electric Power University, Beijing
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2024年 / 45卷 / 04期
关键词：
crystallinity; defect passivation; performance; perovskite solar cells; phase segregation; wide-band gap;
D O I：
10.19912/j.0254-0096.tynxb.2023-1386
中图分类号：
学科分类号：
摘要：
The effects of polysodium p-styrene sulfonate（PSS）on wide-bandgap perovskite films and devices are studied in this paper. The research of this paper shows that use of a polypodium PSS passivator can effectively improve the morphology，increase the crystallinity，and reduce the defect density of perovskite films，which are beneficial to inhibit the phase segregation of mixed-halide wide-bandgap perovskite films. Finally，the J-V test results show that the performance of the optimized wide-bandgap perovskite solar cell is significantly improved. In the wide bandgap perovskite solar cell with PSS，the open circuit voltage is up to 1.23 V，and the efficiency is up to 20.54%. Moreover，the stability of the encapsulated device is significantly improved after phase segregation being inhibited，and the efficiency remains 81.9% of the initial efficiency under continuous illumination for 500 h（N2 environment，40 ℃）. © 2024 Science Press. All rights reserved.
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页码：30 / 35
页数：5
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