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首页> 外文期刊>Advanced energy materials >Precursor Engineering for Ambient-Compatible Antisolvent-Free Fabrication of High-Efficiency CsPbI2Br Perovskite Solar Cells
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Precursor Engineering for Ambient-Compatible Antisolvent-Free Fabrication of High-Efficiency CsPbI2Br Perovskite Solar Cells

机译：环境兼容的抗溶解的抗溶解制造高效CSPBI2BR PEROVSKITE太阳能电池的前体工程

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摘要

High temperature stable inorganic CsPbX3 (X: I, Br, or mixed halides) perovskites with their bandgap tailored by tuning the halide composition offer promising opportunities in the design of ideal top cells for high-efficiency tandem solar cells. Unfortunately, the current high-efficiency CsPbX3 perovskite solar cells (PSCs) are prepared in vacuum, a moisture-free glovebox or other low-humidity conditions due to their poor moisture stability. Herein, a new precursor system (HCOOCs, HPbI3, and HPbBr3) is developed to replace the traditional precursors (CsI, PbI2, and PbBr2) commonly used for solar cells of this type. Both the experiments and calculations reveal that a new complex (HCOOH center dot Cs+) is generated in this precursor system. The new complex is not only stable against aging in humid air ambient at 91% relative humidity, but also effectively slows the perovskite crystallization, making it possible to eliminate the popular antisolvent used in the perovskite CsPbI2Br film deposition. The CsPbI2Br PSCs based on the new precursor system achieve a champion efficiency of 16.14%, the highest for inorganic PSCs prepared in ambient air conditions. Meanwhile, high air stability is demonstrated for an unencapsulated CsPbI2Br PSC with 92% of the original efficiency remaining after more than 800 h aging in ambient air.
机译：高温稳定无机CSPBX3（X：I，Br或混合卤化物）佩洛夫斯基斯基茨通过调整卤化物组成量身定制的带隙，为高效串联太阳能电池的理想顶部电池设计提供了有希望的机遇。遗憾的是，由于其水分稳定性差，目前的高效CSPBX3钙钛矿太阳能电池（PSCs）是真空，无湿的手套箱或其他低湿度条件制备。在此，开发了一种新的前体系（HCOOC，HPBI3和HPBBR3）以替代通常用于这种类型的太阳能电池的传统前体（CSI，PBI2和PBBR2）。实验和计算揭示了在该前体系中产生了新的复合物（HCOOH中心点CS +）。新综合体不仅稳定在潮湿的空气环境中稳定在91％的相对湿度下，而且还有效地减缓了钙钛矿结晶，使得可以消除钙钛矿CSPBI2BR膜沉积中使用的普遍的抗溶剂。基于新的前体系的CSPBI2BRSS实现冠军效率为16.14％，对于环境空气条件中制备的无机PSC最高。同时，对于未封闭的CSPBI2BRSCC，对高稳定性的CSPBI2BR PSC进行了高空气稳定性，在环境空气中超过800小时的原始效率的92％。

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  • 来源
    《Advanced energy materials》 |2020年第22期|2000691.1-2000691.11|共11页
  • 作者

    Duan Chenyang; Cui Jian; Zhang Miaomiao; Han Yu; Yang Shaomin; Zhao Huan; Bian Hongtao; Yao Jianxi; Zhao Kui; Liu Zhike; Liu Shengzhong (Frank);

  • 作者单位

    Shaanxi Normal Shaanxi Engn Lab Adv Energy Technol Key Lab Appl Surface & Colloid Chem Minist Educ Shaanxi Key Lab Adv Energy Devices Sch Mat Sci & Xian 710119 Peoples R China;

    Shaanxi Normal Shaanxi Engn Lab Adv Energy Technol Key Lab Appl Surface & Colloid Chem Minist Educ Shaanxi Key Lab Adv Energy Devices Sch Mat Sci & Xian 710119 Peoples R China;

    Shaanxi Normal Univ Sch Chem & Chem Engn Minist Educ Key Lab Appl Surface & Colloid Chem Xian 710119 Peoples R China;

    Shaanxi Normal Shaanxi Engn Lab Adv Energy Technol Key Lab Appl Surface & Colloid Chem Minist Educ Shaanxi Key Lab Adv Energy Devices Sch Mat Sci & Xian 710119 Peoples R China;

    Shaanxi Normal Shaanxi Engn Lab Adv Energy Technol Key Lab Appl Surface & Colloid Chem Minist Educ Shaanxi Key Lab Adv Energy Devices Sch Mat Sci & Xian 710119 Peoples R China;

    Shaanxi Normal Shaanxi Engn Lab Adv Energy Technol Key Lab Appl Surface & Colloid Chem Minist Educ Shaanxi Key Lab Adv Energy Devices Sch Mat Sci & Xian 710119 Peoples R China;

    Shaanxi Normal Univ Sch Chem & Chem Engn Minist Educ Key Lab Appl Surface & Colloid Chem Xian 710119 Peoples R China;

    North China Elect Power Univ State Key Lab Alternate Elect Power Syst Renewabl Beijing 102206 Peoples R China;

    Shaanxi Normal Shaanxi Engn Lab Adv Energy Technol Key Lab Appl Surface & Colloid Chem Minist Educ Shaanxi Key Lab Adv Energy Devices Sch Mat Sci & Xian 710119 Peoples R China;

    Shaanxi Normal Shaanxi Engn Lab Adv Energy Technol Key Lab Appl Surface & Colloid Chem Minist Educ Shaanxi Key Lab Adv Energy Devices Sch Mat Sci & Xian 710119 Peoples R China;

    Shaanxi Normal Shaanxi Engn Lab Adv Energy Technol Key Lab Appl Surface & Colloid Chem Minist Educ Shaanxi Key Lab Adv Energy Devices Sch Mat Sci & Xian 710119 Peoples R China|Chinese Acad Sci Dalian Inst Chem Phys Dalian Natl Lab Clean Energy iChEM Dalian 116023 Liaoning Peoples R China|Univ Chinese Acad Sci Beijing 100039 Peoples R China;

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  • 正文语种 eng
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  • 关键词

    CsPbI2Br; perovskite solar cells; PSC fabrication;

    机译：CSPBI2BR;PEROVSKITE太阳能电池;PSC制造;

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