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首页> 外文期刊>ACS applied materials & interfaces >Nonconjugated Polymer Poly(vinylpyrrolidone) as an Efficient Interlayer Promoting Electron Transport for Perovskite Solar Cells
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Nonconjugated Polymer Poly(vinylpyrrolidone) as an Efficient Interlayer Promoting Electron Transport for Perovskite Solar Cells

机译：非共青聚合物聚（乙烯基吡咯烷酮）作为促进钙钛矿太阳能电池的有效层间促进电子传输

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摘要

The interfaces between perovskite layer and electrodes play a crucial role on efficient charge transport and extraction in perovskite solar cells (PSCs). Herein, for,the first time we applied a low-cost nonconjugated polymer 15 poly(vinylpyrrolidone) (PVP) as a new interlayer between PCBM electron transport layer (ETL) and Ag cathode for high-performance inverted planar heterojunction perovskite solar cells (iPSCs), leading to a dramatic efficiency enhancement. The CH3NH3PbI3-xClx-based iPSC device incorporating the PVP interlayer exhibited a power conversion efficiency (PCE) of 12.55%, Which is enhanced by similar to 1.5.9% relative,to that of the control device without PVP interlayer (10.83%). The mechanistic investigations based on morphological, optical, and impedance spectroscopic characterizations reveal that incorporation of PVP interlayer promotes electron transport across the CH3NH3PbI3-xClx perovskite/Ag interface via PCBMETL. Besides, PVP incorporation induces the formation of a dipole layer, which may enhance the built-in potential across the device, conjunctly promoting electron transport from PCBM to Ag cathode and consequently leading to significantly improved fill factor (FF) from 58.98 to 66.13%.
机译：Perovskite层和电极之间的界面在Perovskite太阳能电池（PSC）中有效电荷传输和提取起到至关重要的作用。在本文中，首次将低成本非共轭聚合物15聚（乙烯基吡咯烷酮）（PVP）应用于PCBM电子传输层（ETL）和Ag阴极之间的新中间层，用于高性能倒平面杂交钙钛矿太阳能电池（IPSC） ），导致戏剧性的效率增强。结合PVP中间层的基于CH3NH3PBI3-XCLX的IPSC器件表现出12.55％的功率转换效率（PCE），其相对于没有PVP中间层的控制装置（10.83％）而增强至1.5.9％。基于形态学，光学和阻抗光谱表征的机械研究表明，PVP中间层的掺入通过PCBMET1促进了CH3NH3PBI3-XCLX PEROVSKITE / AG界面的电子传输。此外，PVP掺入诱导偶极层的形成，其可以增强整个装置的内置电位，将电子传输与PCBM与Ag阴极的结合促进，从而显着改善58.98至66.13％的填充因子（FF）。

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  • 来源
    《ACS applied materials & interfaces》 |2017年第38期|共8页
  • 作者

    Zhou Pengcheng; Fang Zhimin; Zhou Weiran; Qiao Qiquan; Wang Mingtai; Chen Tao; Yang Shangfeng;

  • 作者单位

    Chinese Acad Sci Univ Sci &

    Technol China Dept Mat Sci &

    Engn Synerget Innovat Ctr Quantum Informat &

    Quantum P Hefei Natl Lab Phys Sci Microscale Key Lab Mat En Hefei 230026 Anhui Peoples R China;

    Chinese Acad Sci Univ Sci &

    Technol China Dept Mat Sci &

    Engn Synerget Innovat Ctr Quantum Informat &

    Quantum P Hefei Natl Lab Phys Sci Microscale Key Lab Mat En Hefei 230026 Anhui Peoples R China;

    Chinese Acad Sci Univ Sci &

    Technol China Dept Mat Sci &

    Engn Synerget Innovat Ctr Quantum Informat &

    Quantum P Hefei Natl Lab Phys Sci Microscale Key Lab Mat En Hefei 230026 Anhui Peoples R China;

    South Dakota State Univ Dept Elect Engn &

    Comp Sci Ctr Adv Photovolta Brookings SD 57007 USA;

    Chinese Acad Sci Hefei Inst Phys Sci Inst Appl Technol Hefei 230088 Anhui Peoples R China;

    Chinese Acad Sci Univ Sci &

    Technol China Dept Mat Sci &

    Engn Synerget Innovat Ctr Quantum Informat &

    Quantum P Hefei Natl Lab Phys Sci Microscale Key Lab Mat En Hefei 230026 Anhui Peoples R China;

    Chinese Acad Sci Univ Sci &

    Technol China Dept Mat Sci &

    Engn Synerget Innovat Ctr Quantum Informat &

    Quantum P Hefei Natl Lab Phys Sci Microscale Key Lab Mat En Hefei 230026 Anhui Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学工业;
  • 关键词

    perovskite solar cells; poly(vinylpyrrolidone); interface engineering; electron transport layer; dipole layer;

    机译：Perovskite太阳能电池;聚（乙烯基吡咯烷酮）;界面工程;电子传输层;偶极层;

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