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首页> 外文期刊>Journal of power sources >Stabilization of organometal halide perovskite films by SnO2 coating with inactive surface hydroxyl groups on ZnO nanorods
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Stabilization of organometal halide perovskite films by SnO2 coating with inactive surface hydroxyl groups on ZnO nanorods

机译：ZnO纳米棒表面无活性羟基的SnO2涂层稳定有机金属卤化物钙钛矿薄膜

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摘要

Perovskite solar cells have advanced rapid in the last few years, however the thermal instability of perovskite film on ZnO nanorods (NRs) remains a big challenge limiting its commercialization. The present work demonstrated effective suppression of the decomposition of CH3NH3PbI3 perovskite through inserting a thin tin oxide (SnO2) passivation layer between ZnO NRs and perovskite films. Although X-ray photoelectron spectroscopy (XPS) results showed no distinct difference in the amount of hydroxyl groups and oxygen vacancies on the surface of ZnO NRs and ZnO@SnO2 NRs, Raman spectra suggested the hydroxyl groups might be trapped in oxygen vacancies on SnO2 surface, preventing the decomposition of CH3NH3PbI3 perovskite through reacting with the hydroxyl groups. The power conversion efficiency of perovskite solar cells was significantly increased from 6.92% to 12.17% and became hysteresis-free by applying SnO2 passivating layer between perovskite and ZnO layers. (C) 2016 Elsevier B.V. All rights reserved.
机译：钙钛矿太阳能电池在最近几年中发展迅速，但是在ZnO纳米棒（NRs）上钙钛矿薄膜的热不稳定性仍然是限制其商业化的巨大挑战。本工作证明了通过在ZnO NRs和钙钛矿薄膜之间插入薄的氧化锡（SnO2）钝化层来有效抑制CH3NH3PbI3钙钛矿的分解。尽管X射线光电子能谱（XPS）结果表明ZnO NRs和ZnO @ SnO2 NRs表面的羟基数量和氧空位没有明显差异，但拉曼光谱表明羟基可能被SnO2表面的氧空位捕获。 ，通过与羟基反应防止CH3NH3PbI3钙钛矿分解。通过在钙钛矿层和ZnO层之间施加SnO2钝化层，钙钛矿型太阳能电池的功率转换效率从6.92％显着提高到12.17％，并且没有磁滞现象。 （C）2016 Elsevier B.V.保留所有权利。

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  • 来源
    《Journal of power sources》 |2017年第30期|51-60|共10页
  • 作者

    Wang Peng; Zhao Jinjin; Liu Jinxi; Wei Liyu; Liu Zhenghao; Guan Lihao; Cao Guozhong;

  • 作者单位

    Shijiazhuang Tiedao Univ, Sch Mat Sci & Engn, 17 Northeast,Second Inner Ring, Shijiazhuang 050043, Peoples R China;

    Shijiazhuang Tiedao Univ, Sch Mat Sci & Engn, 17 Northeast,Second Inner Ring, Shijiazhuang 050043, Peoples R China|Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA|Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Nanobiomech, Shenzhen 518055, Peoples R China;

    Shijiazhuang Tiedao Univ, Dept Engn Mech, 17 Northeast,Second Inner Ring, Shijiazhuang 050043, Peoples R China;

    Shijiazhuang Tiedao Univ, Sch Mat Sci & Engn, 17 Northeast,Second Inner Ring, Shijiazhuang 050043, Peoples R China;

    Shijiazhuang Tiedao Univ, Sch Mat Sci & Engn, 17 Northeast,Second Inner Ring, Shijiazhuang 050043, Peoples R China;

    Shijiazhuang Tiedao Univ, Sch Mat Sci & Engn, 17 Northeast,Second Inner Ring, Shijiazhuang 050043, Peoples R China;

    Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Perovskite solar cell; Surface passivation; Thermal and chemical stability; CH3NH3PbI3; ZnO and SnO2 core-shell arrays;

    机译：钙钛矿太阳能电池;表面钝化;热化学稳定性;CH3NH3PbI3;ZnO和SnO2核壳阵列;

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