• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Understanding Temperature-Dependent Charge Extraction and Trapping in Perovskite Solar Cells
【24h】

Understanding Temperature-Dependent Charge Extraction and Trapping in Perovskite Solar Cells

机译：了解钙钛矿太阳能电池温度依赖的电荷提取和诱捕

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Understanding the factors that limit the performance of perovskite solar cells (PSCs) can be enriched by detailed temperature (T)-dependent studies. Based on p-i-n type PSCs with prototype methylammonium lead triiodide (MAPbI(3)) perovskite absorbers, T-dependent photovoltaic properties are explored and negative T-coefficients for the three device parameters (V-OC, J(SC), and FF) are observed within a wide low T-range, leading to a maximum power conversion efficiency (PCE) of 21.4% with an impressive fill factor (FF) approaching 82% at 220 K. These T-behaviors are explained by the enhanced interfacial charge transfer, reduced charge trapping with suppressed nonradiative recombination and narrowed optical bandgap at lower T. By comparing the T-dependent device behaviors based on MAPbI(3) devices containing a PASP passivation layer, enhanced PCE at room temperature is observed but different tendencies showing attenuating T-dependencies of J(SC) and FF, which eventually leads to nearly T-invariable PCEs. These results indicate that charge extraction with the utilized all-organic charge transporting layers is not a limiting factor for low-T device operation, meanwhile the trap passivation layer of choice can play a role in the T-dependent photovoltaic properties and thus needs to be considered for PSCs operating in a temperature-variable environment.
机译：理解限制钙钛矿太阳能电池（PSC）性能的因素可以通过详细的温度（T） - 依赖性研究来富集。基于销型PSC具有原型甲基铵铅三碘化物（MAPBI（3））钙钛矿吸收器，探索了T型光伏性能，对于三个设备参数（V-OC，J（SC）和FF）是负的T形系数在宽的T范围内观察到，导致最大功率转换效率（PCE）为21.4％，令人印象深刻的填充因子（FF）在220K下接近82％。这些T行为通过增强的界面电荷转移来解释，通过在较低的T下减少抑制的非脉冲重组和变窄光学带隙的电荷俘获。通过将基于MAPBI（3）器件的T依赖性装置行为进行比较，观察到室温下的增强PCE，但显示衰减T-的不同趋势j（sc）和ff的依赖关系，最终导致几乎不变的PCE。这些结果表明，利用的所有有机电荷输送层的电荷提取不是低T器件操作的限制因素，同时选择的陷阱钝化层可以在T依赖性光伏特性中发挥作用，因此需要是考虑在温度可变环境中运行的PSC。

著录项

  • 来源
    《Advanced Functional Materials》 |2020年第22期|2000550.1-2000550.10|共10页
  • 作者

    Zhou Qian; Wang Boxing; Meng Rui; Zhou Jiyu; Xie Shenkun; Zhang Xuning; Wang Jianqiu; Yue Shengli; Qin Bing; Zhou Huiqiong; Zhang Yuan;

  • 作者单位

    Beihang Univ Beijing Adv Innovat Ctr Biomed Engn Yuan ZhangSch Chem 37 Xueyuan Rd Beijing 100191 Peoples R China;

    Natl Ctr Nanosci & Technol CAS Ctr Excellence Nanosci Key Lab Nanosyst & Hierach Fabricat Beijing 100190 Peoples R China;

    Beihang Univ Beijing Adv Innovat Ctr Biomed Engn Yuan ZhangSch Chem 37 Xueyuan Rd Beijing 100191 Peoples R China;

    Beihang Univ Beijing Adv Innovat Ctr Biomed Engn Yuan ZhangSch Chem 37 Xueyuan Rd Beijing 100191 Peoples R China;

    Natl Ctr Nanosci & Technol CAS Ctr Excellence Nanosci Key Lab Nanosyst & Hierach Fabricat Beijing 100190 Peoples R China;

    Beihang Univ Beijing Adv Innovat Ctr Biomed Engn Yuan ZhangSch Chem 37 Xueyuan Rd Beijing 100191 Peoples R China;

    Natl Ctr Nanosci & Technol CAS Ctr Excellence Nanosci Key Lab Nanosyst & Hierach Fabricat Beijing 100190 Peoples R China;

    Natl Ctr Nanosci & Technol CAS Ctr Excellence Nanosci Key Lab Nanosyst & Hierach Fabricat Beijing 100190 Peoples R China;

    Shimadzu Co Ltd Beijing 100190 Peoples R China;

    Natl Ctr Nanosci & Technol CAS Ctr Excellence Nanosci Key Lab Nanosyst & Hierach Fabricat Beijing 100190 Peoples R China;

    Beihang Univ Beijing Adv Innovat Ctr Biomed Engn Yuan ZhangSch Chem 37 Xueyuan Rd Beijing 100191 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    charge extraction; charge trapping; recombination; passivation layer; temperature dependence;

    机译：电荷提取;电荷俘获;重组;钝化层;温度依赖;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号