...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Organic Electronics >Enhanced efficiency and reduced hysteresis by TiO_2 modification in high-performance perovskite solar cells
【24h】

Enhanced efficiency and reduced hysteresis by TiO_2 modification in high-performance perovskite solar cells

机译：通过高性能钙钛矿太阳能电池提高效率和降低滞后减少

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

Recent research has focused on increasing the open-circuit voltage (Voc) and current density (Jsc) of perovskite solar cells (PSCs) by introducing p- or n-type dopants with higher electronegativity than Ti into the TiO_2 electron transport layer (ETL). However, these kinds of dopant create undesired charge traps that hinder charge transport through TiO_2. Therefore, the improvement in V_(oc_ is often accompanied by an undesired current density-voltage (J-V) hysteresis problem. Herein, we demonstrate that the introduction of 4-chlorobenzoic acid (4-ClBA-TiO_2) dopant into TiO_2 not only overcomes the J-V hysteresis issue but also increases the V_(oc), Jsc and power conversion efficiency (PCE) in mesoscopic PSCs. Also, the material shown the better device performance compared to the state-of-art ETL, with the 4-CLBA-TiO_2. We speculate that the interaction between the 4-C1BA and the perovskite interface is more selective for electrons. Further the 4-ClBA-TiO_2 electron mobility has been improved 1.9 times compared with TiO_2. As a result, for mesoscopic PSCs, the doping of 4-ClBA-TiO_2 increases the efficiency from 18.23% to 20.22%, while the hysteresis is largely reduced from 20.2% to 1.5%. To the best of our knowledge, this is the first report using the spin coating blocking layer to achieve over 20%. Thus, we believe that this approach will be an effective design strategy capable of enhancing the performance of PSCs with less hysteresis.
机译：最近的研究专注于通过将具有比Ti更高的电气增长的P型或N型掺杂剂引入TiO_2电子传输层（ETL）来增加钙钛矿太阳能电池（PSC）的开路电压（PSC）的开路电压（VOC）和电流密度（JSC） 。然而，这些掺杂剂产生了通过TiO_2妨碍电荷输送的不期望的电荷陷阱。因此，V_（OC_通常伴随着不期望的电流密度 - 电压（JV）滞后问题。在此，我们证明将4-氯苯甲酸（4-CLBA-TiO_2）掺杂为TiO_2不仅克服了JV滞后问题，但也增加了介于介绍PSC中的V_（OC），JSC和功率转换效率（PCE）。此外，与最先进的ETL相比，材料显示了更好的设备性能，其中4-Clba-TiO_2 。我们推测了4-C1BA和Perovskite界面之间的相互作用对电子进行了更具选择性的。此外，与TiO_2相比，4-Clba-TiO_2电子迁移率提高了1.9次。结果，对于介观PSC，掺杂4-CLBA-TiO_2将效率从18.23％增加到20.22％，而滞后在很大程度上从20.2％降至1.5％。据我们所知，这是第一个使用旋转涂层阻挡层来实现超过20的报告％。因此，我们相信这种方法将是一种有效的设计策略，能够提高PSC的性能，滞后减少。

著录项

  • 来源
    《Organic Electronics》 |2020年第11期|105922.1-105922.8|共8页
  • 作者

    Veera Murugan Arivunithi; Soohyun Kim; Jungmin Choi; Jong Hun Sung; Hyun Deog Yoo; Eun-Sol Shin; Yong-Young Noh; Yeong-Soon Gal; Hyunjung Lee; Sung-Ho Jin;

  • 作者单位

    Deportment of Chemistry Education Graduate Department of Chemical Materials Institute for Plastic Information and Energy Materials Pusan National University Busan 46241 Republic of Korea;

    Department of Materials Science and Engineering Kookmin University Seoul 02707 Republic of Korea;

    Deportment of Chemistry Education Graduate Department of Chemical Materials Institute for Plastic Information and Energy Materials Pusan National University Busan 46241 Republic of Korea;

    Department of Chemistry and Chemical Institute for Functional Materials Pusan National University Busan 46241 Republic of Korea;

    Department of Chemistry and Chemical Institute for Functional Materials Pusan National University Busan 46241 Republic of Korea;

    Department of Chemical Engineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea;

    Department of Chemical Engineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea;

    Department of Fire Safety Kyungil University Gyeongsan 38428 Republic of Korea;

    Department of Materials Science and Engineering Kookmin University Seoul 02707 Republic of Korea;

    Deportment of Chemistry Education Graduate Department of Chemical Materials Institute for Plastic Information and Energy Materials Pusan National University Busan 46241 Republic of Korea;

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

    4-Chlorobenzoic acid; Perovskite solar cell; Mesoporous TiO_2; Dopant; High efficiency; Stability;

    机译：4-氯苯甲酸;Perovskite太阳能电池;介孔TiO_2;掺杂剂;高效率;稳定;

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