Modifying Perovskite Films with Polyvinylpyrrolidone for Ambient-Air-Stable Highly Bendable Solar Cells

ACS Applied Materials & Interfaces
Hao XiongElsa Reichmanis

Abstract

One major drawback that prevents the large-scale practical implementation of perovskites is their susceptibility to performance degradation in humid environments. Here, we achieved uniform, stable perovskite films within a polyvinylpyrrolidone (PVP) polymer frame via mild solution processing in ambient air with over 60% relative humidity. In addition to facilitating film formation, the hydrophobic PVP served to protect the perovskite grains from atmospheric moisture. Use of PVP, coupled with optimization of the deposition parameters, provided for compact, smooth, pinhole-free perovskite films that when incorporated into a photovoltaic device exhibited highly reproducible efficiencies in the range of up to 17%. In the absence of encapsulation, the devices exhibited stable performance characteristics during exposure to humid ambient air for 600 h. Furthermore, on flexible substrates, the 8 wt % PVP-perovskite samples provided for device efficiencies of ca. 15%. The devices retained ca. 73% of their efficiency after bending 1000 times with a bending radius of 0.5 cm.

References

Apr 2, 2014·Nano Letters·Jarvist M FrostAron Walsh
Sep 1, 2014·Nature Nanotechnology·Jeong-Hyeok ImNam-Gyu Park
Jan 21, 2015·Journal of the American Chemical Society·Xiaoxi WuX-Y Zhu
Mar 20, 2014·The Journal of Physical Chemistry Letters·Stefaan De WolfChristophe Ballif
Jan 7, 2016·Nature Communications·Yicheng ZhaoQing Zhao
Jul 20, 2016·Physical Chemistry Chemical Physics : PCCP·Nurul Ain ManshorRajan Jose
Dec 6, 2016·Advanced Materials·Abd Rashid Bin Mohd YusoffMohammad Khaja Nazeeruddin
Dec 23, 2016·Advanced Materials·Shanyuan NiuJayakanth Ravichandran
Jul 5, 2017·Proceedings of the National Academy of Sciences of the United States of America·Tianran ChenSeung-Hun Lee
Apr 15, 2018·Scientific Reports·Mejd AlsariRichard H Friend

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Citations

Nov 8, 2019·Advanced Healthcare Materials·Max J H TanZhi-Kuang Tan
Jul 8, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Pavol SulyIvo Kuritka
Apr 26, 2019·ACS Applied Materials & Interfaces·Lili GaoGuanjun Yang
Aug 30, 2019··Bernard KippelenYoungrak Park

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