Working from Both Sides: Composite Metallic Semitransparent Top Electrode for High Performance Perovskite Solar Cells

ACS Applied Materials & Interfaces
Xuezeng DaiHong Lin

Abstract

We report herein perovskite solar cells using solution-processed silver nanowires (AgNWs) as transparent top electrode with markedly enhanced device performance, as well as stability by evaporating an ultrathin transparent Au (UTA) layer beneath the spin-coated AgNWs forming a composite transparent metallic electrode. The interlayer serves as a physical separation sandwiched in between the perovskite/hole transporting material (HTM) active layer and the halide-reactive AgNWs top-electrode to prevent undesired electrode degradation and simultaneously functions to significantly promote ohmic contact. The as-fabricated semitransparent PSCs feature a Voc of 0.96 V, a Jsc of 20.47 mA cm(-2), with an overall PCE of over 11% when measured with front illumination and a Voc of 0.92 V, a Jsc of 14.29 mA cm(-2), and an overall PCE of 7.53% with back illumination, corresponding to approximately 70% of the value under normal illumination conditions. The devices also demonstrate exceptional fabrication repeatability and air stability.

References

Mar 31, 2010·Nano Letters·Jung-Yong LeePeter Peumans
Sep 8, 2011·Nanoscale·Jeong-Hyeok ImNam-Gyu Park
Dec 24, 2013·Journal of the American Chemical Society·Qi ChenYang Yang
Jan 29, 2014·ACS Nano·Giles E EperonHenry J Snaith

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Citations

Dec 29, 2016·ACS Applied Materials & Interfaces·Xuewen YinHong Lin
Jul 7, 2017·Advanced Materials·Qidong Tai, Feng Yan
Jan 23, 2018·Small·Haifei LuWallace C H Choy
Aug 14, 2019·Advanced Materials·Biao ShiXiaodan Zhang
Sep 18, 2020·Science and Technology of Advanced Materials·Dong-Hyeok ChoiHan-Ki Kim

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