Hydrophobic Polystyrene Passivation Layer for Simultaneously Improved Efficiency and Stability in Perovskite Solar Cells

ACS Applied Materials & Interfaces
Minghua LiYue Zhang

Abstract

The major restraint for the commercialization of the high-performance hybrid metal halide perovskite solar cells is the long-term stability, especially at the infirm interface between the perovskite film and organic charge-transfer layer. Recently, engineering the interface between the perovskite and spiro-OMeTAD becomes an effective strategy to simultaneously improve the efficiency and stability in the perovskite solar cells. In this work, we demonstrated that introducing an interfacial polystyrene layer between the perovskite film and spiro-OMeTAD layer can effectively improve the perovskite solar cells photovoltaic performance. The inserted polystyrene layer can passivate the interface traps and defects effectively and decrease the nonradiative recombination, leading to enhanced photoluminescence intensity and carrier lifetime, without compromising the carrier extraction and transfer. Under the optimized condition, the perovskite solar cells with the polystyrene layer achieve an enhanced average power efficiency of about 19.61% (20.46% of the best efficiency) from about 17.63% with negligible current density-voltage hysteresis. Moreover, the optimized perovskite solar cells with the hydrophobic polystyrene layer can maintain...Continue Reading

References

Apr 16, 2009·Journal of the American Chemical Society·Akihiro KojimaTsutomu Miyasaka
Jan 17, 2015·Journal of the American Chemical Society·Linfeng LiuHongwei Han
Oct 21, 2015·ACS Applied Materials & Interfaces·Jiang LiuWoonming Lau
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Oct 19, 2017·Advanced Materials·Qi JiangJingbi You

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Citations

May 8, 2019·Advanced Materials·Erkan AydinStefaan De Wolf
May 24, 2020·Materials·Subha Prakash MallickTien-Chang Lu
Apr 8, 2020·Angewandte Chemie·Suicai ZhangYue Zhang
Nov 6, 2020·Nanoscale·Xincan QiuYuanyuan Hu
Oct 23, 2020·Journal of Hazardous Materials·Youming DongZhengguo Song
May 22, 2021·ACS Applied Materials & Interfaces·Renjie ChenXiaohong Chen
Dec 12, 2019·ACS Applied Materials & Interfaces·Qingquan HeBiwu Ma
May 23, 2020·ACS Applied Materials & Interfaces·Yifan LvWei Huang

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