Grain boundary dominated ion migration in polycrystalline organic–inorganic halide perovskite films

Shao, Yuchuan; Fang, Yanjun; Li, Tao; Wang, Qi; Dong, Qingfeng; Deng, Yehao; Yuan, Yongbo; Wei, Haotong; Wang, Meiyu; Gruverman, Alexei; Shield, Jeffery; Huang, Jinsong

doi:10.1039/C6EE00413J

Title: Grain boundary dominated ion migration in polycrystalline organic–inorganic halide perovskite films

Journal Article · Mon Mar 21 00:00:00 EDT 2016 · Energy & Environmental Science

DOI:https://doi.org/10.1039/C6EE00413J· OSTI ID:1342745

Shao, Yuchuan ^[1]; Fang, Yanjun ^[1]; Li, Tao ^[1]; Wang, Qi ^[1]; Dong, Qingfeng ^[1]; Deng, Yehao ^[1]; Yuan, Yongbo ^[1]; Wei, Haotong ^[1]; Wang, Meiyu ^[1]; Gruverman, Alexei ^[1]; Shield, Jeffery ^[1]; Huang, Jinsong ^[1]

Univ. of Nebraska-Lincoln, Lincoln, NE (United States)

The efficiency of perovskite solar cells is approaching that of single-crystalline silicon solar cells despite the presence of large grain boundary (GB) area in the polycrystalline thin films. Here, by using a combination of nanoscopic and macroscopic level measurements, we show that the ion migration in polycrystalline perovskites is dominated through GBs. Conducting atomic force microscopy measurements reveal much stronger hysteresis both for photocurrent and dark-current at the GBs than on the grains interiors, which can be explained by faster ion migration at the GBs. The dramatically enhanced ion migration results in a redistribution of ions along the GBs after electric poling, in contrast to the intact grain area. The perovskite single-crystal devices without GBs show negligible current hysteresis and no ion-migration signal. Furthermore, the discovery of dominating ion migration through GBs in perovskites can lead to broad applications in many types of devices including photovoltaics, memristors, and ion batteries.

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Research Organization:: Univ. of Nebraska, Lincoln, NE (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office

Grant/Contract Number:: EE0006709

OSTI ID:: 1342745

Journal Information:: Energy & Environmental Science, Vol. 9, Issue 5; ISSN 1754-5692

Publisher:: Royal Society of ChemistryCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 836 works

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Understanding charge transport in lead iodide perovskite thin-film field-effect transistors Senanayak, Satyaprasad; Yang, B.; Thomas, Tudor Apollo - University of Cambridge Repository https://doi.org/10.17863/cam.7594	text	January 2017
Constructing CsPbBr ₃ Cluster Passivated‐Triple Cation Perovskite for Highly Efficient and Operationally Stable Solar Cells Zhou, Wenke; Chen, Shulin; Zhao, Yicheng Advanced Functional Materials, Vol. 29, Issue 14 https://doi.org/10.1002/adfm.201809180	journal	February 2019
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Giant Zero-Drift Electronic Behaviors in Methylammonium Lead Halide Perovskite Diodes by Doping Iodine Ions Pang, Tiqiang; Jia, Renxu; Wang, Yucheng Materials, Vol. 11, Issue 9 https://doi.org/10.3390/ma11091606	journal	September 2018
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Capturing the Sun: A Review of the Challenges and Perspectives of Perovskite Solar Cells Petrus, Michiel L.; Schlipf, Johannes; Li, Cheng Advanced Energy Materials, Vol. 7, Issue 16 https://doi.org/10.1002/aenm.201700264	journal	June 2017
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Dual‐Phase All‐Inorganic Cesium Halide Perovskites for Conducting‐Bridge Memory‐Based Artificial Synapses Kim, Sun Gil; Van Le, Quyet; Han, Ji Su Advanced Functional Materials, Vol. 29, Issue 49 https://doi.org/10.1002/adfm.201906686	journal	September 2019
A Biopolymer Heparin Sodium Interlayer Anchoring TiO ₂ and MAPbI ₃ Enhances Trap Passivation and Device Stability in Perovskite Solar Cells You, Shuai; Wang, Hui; Bi, Shiqing Advanced Materials, Vol. 30, Issue 22 https://doi.org/10.1002/adma.201706924	journal	April 2018
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Efficient Semitransparent Perovskite Solar Cells for 23.0%-Efficiency Perovskite/Silicon Four-Terminal Tandem Cells Chen, Bo; Bai, Yang; Yu, Zhengshan Advanced Energy Materials, Vol. 6, Issue 19 https://doi.org/10.1002/aenm.201601128	journal	July 2016
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Trifluoroacetate induced small-grained CsPbBr3 perovskite films result in efficient and stable light-emitting devices Wang, Haoran; Zhang, Xiaoyu; Wu, Qianqian Nature Communications, Vol. 10, Issue 1 https://doi.org/10.1038/s41467-019-08425-5	journal	February 2019
Large lattice distortions and size-dependent bandgap modulation in epitaxial halide perovskite nanowires Oksenberg, Eitan; Merdasa, Aboma; Houben, Lothar Nature Communications, Vol. 11, Issue 1 https://doi.org/10.1038/s41467-020-14365-2	journal	January 2020
Electrochemical and atomic force microscopy investigations of the effect of CdS on the local electrical properties of CH ₃ NH ₃ PbI ₃ :CdS perovskite solar cells Guo, Mingxuan; Li, Fumin; Ling, Lanyu Journal of Materials Chemistry C, Vol. 5, Issue 46 https://doi.org/10.1039/c7tc04377e	journal	January 2017
Perspective: Theory and simulation of hybrid halide perovskites Whalley, Lucy D.; Frost, Jarvist M.; Jung, Young-Kwang arXiv https://doi.org/10.48550/arxiv.1703.09504	text	January 2017
Ion Induced Passivation of Grain Boundaries in Perovskite Solar Cells Nandal, Vikas; Nair, Pradeep R. arXiv https://doi.org/10.48550/arxiv.1811.10765	text	January 2018

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