• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced energy materials >Formamidinium and Cesium Hybridization for Photo- and Moisture-Stable Perovskite Solar Cell
【24h】

Formamidinium and Cesium Hybridization for Photo- and Moisture-Stable Perovskite Solar Cell

机译：光和水分稳定的钙钛矿太阳能电池的甲ami和铯杂交

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

Although power conversion efficiency (PCE) of state-of-the-art perovskite solar cells has already exceeded 20%, photo- and/or moisture instability of organolead halide perovskite have prevented further commercialization. In particular, the underlying weak interaction of organic cations with surrounding iodides due to eight equivalent orientations of the organic cation along the body diagonals in unit cell and chemically non-inertness of organic cation result in photo- and moisture instability of organometal halide perovskite. Here, a perovskite light absorber incorporating organic–inorganic hybrid cation in the A-site of 3D APbI3 structure with enhanced photo- and moisture stability is reported. A partial substitution of Cs+ for HC(NH2)2+ in HC(NH2)2PbI3 perovskite is found to substantially improve photo- and moisture stability along with photovoltaic performance. When 10% of HC(NH2)2+ is replaced by Cs+, photo- and moisture stability of perovskite film are significantly improved, which is attributed to the enhanced interaction between HC(NH2)2+ and iodide due to contraction of cubo-octahedral volume. Moreover, trap density is reduced by one order of magnitude upon incorporation of Cs+, which is responsible for the increased open-circuit voltage and fill factor, eventually leading to enhancement of average PCE from 14.9% to 16.5%.
机译：尽管最先进的钙钛矿太阳能电池的功率转换效率（PCE）已超过20％，但有机卤化铅钙钛矿的光和/或湿气不稳定性阻止了其进一步的商业化。特别地，由于有机阳离子沿着晶胞在体对角线上的八个等效取向以及有机阳离子的化学惰性，导致有机阳离子与周围碘的潜在弱相互作用，导致有机金属卤化物钙钛矿的光和水不稳定性。在这里，据报道钙钛矿光吸收剂在3D APbI3结构的A位置结合了有机-无机杂化阳离子，具有增强的光和湿稳定性。发现HC（NH2）2PbI3钙钛矿中HC（NH2）2+的Cs +部分取代可显着改善光稳定性和湿气稳定性以及光伏性能。当10％的HC（NH2）2+被Cs +取代时，钙钛矿薄膜的光稳定性和湿气稳定性得到了显着改善，这归因于cu-NH8edral的收缩导致HC（NH2）2+与碘化物之间的相互作用增强。体积。而且，由于引入了Cs +，陷阱密度降低了一个数量级，这导致开路电压和填充因子增加，最终导致平均PCE从14.9％提高到16.5％。

著录项

  • 来源
    《Advanced energy materials》 |2015年第20期|1-9|共9页
  • 作者

    Jin-Wook Lee; Deok-Hwan Kim; Hui-Seon Kim; Seung-Woo Seo; Sung Min Cho; Nam-Gyu Park;

  • 作者单位

    School of Chemical Engineering and Department of Energy Science Sungkyunkwan University (SKKU) Suwon Korea;

    School of Chemical Engineering and Department of Energy Science Sungkyunkwan University (SKKU) Suwon Korea;

    School of Chemical Engineering and Department of Energy Science Sungkyunkwan University (SKKU) Suwon Korea;

    School of Chemical Engineering and Department of Energy Science Sungkyunkwan University (SKKU) Suwon Korea;

    School of Chemical Engineering and Department of Energy Science Sungkyunkwan University (SKKU) Suwon Korea;

    School of Chemical Engineering and Department of Energy Science Sungkyunkwan University (SKKU) Suwon Korea;

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

    cesium; formamidinium; mixed cations; perovskite solar cells; stabilities;

    机译：铯;甲ami;混合阳离子;钙钛矿太阳能电池;稳定性;

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