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首页> 外文期刊>Advanced Materials >40.1% Record Low-Light Solar-Cell Efficiency by Holistic Trap-Passivation using Micrometer-Thick Perovskite Film
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40.1% Record Low-Light Solar-Cell Efficiency by Holistic Trap-Passivation using Micrometer-Thick Perovskite Film

机译：40.1％通过使用微米厚的Perovskite薄膜通过整体陷阱钝化记录低光太阳能效率

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摘要

Perovskite solar cells exhibit not only high efficiency under full AM1.5 sunlight, but also have great potential for applications in low-light environments, such as indoors, cloudy conditions, early morning, late evening, etc. Unfortunately, their performance still suffers from severe trap-induced nonradiative recombination, particularly under low-light conditions. Here, a holistic passivation strategy is developed to reduce traps both on the surface and in the bulk of micrometer-thick perovskite film, leading to a record efficiency of 40.1% under 301.6 mu W cm(-2) warm light-emitting diode (LED) light for low-light solar-cell applications. The involvement of guanidinium into the perovskite bulk film and 2-(4-methoxyphenyl)ethylamine hydrobromide (CH3O-PEABr) passivation on the perovskite surface synergistically suppresses the trap states. The charge carrier lifetimes of the perovskite film increase by tenfold and fivefold to 981 ns and 8.02 mu s at the crystal surface and in its bulk, respectively. The decreased nonradiative recombination loss translates to a high open-circuit voltage (V-oc) of 1.00 V, a high short-circuit current (J(sc)) of 152.10 mu A cm(-2), and a fill factor (FF) of 79.52%. Note that this performance also stands as the highest among all photovoltaics measured under indoor light illumination. This work of trap passivation for micrometer-thick perovskite film paves a way for high-performance, self-powered IoT devices.
机译：Perovskite太阳能电池不仅在完整的AM1.5阳光下的高效率，而且在低光环境中的应用也具有很大的潜力，例如室内，多云的条件，清晨，深夜等，不幸的是，他们的表现仍然存在严重的捕集诱导的非抗体重组，特别是在低光条件下。在这里，开发了整体钝化策略以减少表面和大部分钙钙钛矿薄膜的陷阱，导致在301.6μm（-2）温热的发光二极管（LED）下的40.1％的记录效率为40.1％（LED ）低光太阳能电池应用的光。胍钙血液膨胀膜和2-（4-甲氧基苯基）乙胺氢溴酸（CH 3 O-PEABR）对钙钛矿表面钝化的累积协同抑制捕集态。钙钛矿薄膜的电荷载体寿命分别在晶体表面和5.02μs处增加十倍和5.02μs。下降的非接壤重组损失转化为1.00V的高开路电压（V-OC），高短路电流（J（SC））为152.10μm，厘米（-2）和填充因子（FF ）79.52％。请注意，这种性能也符合在室内光照下测量的所有光伏中的最高。这种捕获钝化钙钛矿薄膜钝化的工作铺设了一种高性能，自动的物联网设备的方法。

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  • 来源
    《Advanced Materials》 |2021年第27期|2100770.1-2100770.10|共10页
  • 作者

    He Xilai; Chen Jiangzhao; Ren Xiaodong; Zhang Lu; Liu Yucheng; Feng Jiangshan; Fang Junjie; Zhao Kui; Liu Shengzhong (Frank);

  • 作者单位

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

    Chongqing Univ Coll Optoelect Engn Chongqing 400044 Peoples R China;

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

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

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

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

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

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

    Shaanxi Normal Univ Key Lab Appl Surface & Colloid Chem Minist Educ Sch Mat Sci & Engn Shaanxi Key Lab Adv Energy Devices Shaanxi Engn L Xian 710119 Peoples R China|Chinese Acad Sci Dalian Natl Lab Clean Energy IChEM Dalian Inst Chem Phys 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

    holistic passivation strategy; low-light photovoltaic cells; low-power-consumption electronic devices; micrometer-thick perovskite films; perovskite solar cells;

    机译：整体钝化策略;低光光伏电池;低功耗电子设备;米厚的钙钛矿薄膜;钙钛矿太阳能电池;

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