• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Highly Efficient Perovskite Solar Cells via Nickel Passivation
【24h】

Highly Efficient Perovskite Solar Cells via Nickel Passivation

机译：通过镍钝化的高效钙钛矿太阳能电池

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

Today's state-of-the-art perovskite solar cells (PSCs) are utilizing polycrystalline perovskite thin films via solution-processing at low temperature (150 degrees C). It is extremely significant to enlarge grain size and passivate trap states for perovskite thin films to achieve high power conversion efficiency. Herein, a strategy for defect passivation of perovskite films via metal ion Ni2+ is for the first time reported. It is found that addition of Ni2+ can significantly generate polyporous Pbl(2) films due to a different solubility between NiCl2 and Pbl(2) which benefits penetration of MAI and thus formation of large grain perovskite films eventually. It further demonstrated that Ni2+ ions can effectively passivate Pbl(3)(-) antisite defects and restrain the generation of Pb-0 by interacting with the under-coordinated halide anions and halide-rich antisites. Therefore, introducing moderate Ni2+ ions result in a significant increase in photoluminescence lifetime from 285 to 732 ns. Accordingly, a power conversion efficiency of 20.61% can be achieved for the 3% Ni2+ addition based PSCs with an enhanced cell stability under ambient conditions. This work provides a promising route toward perovskite films featuring with high crystallinity and low trap-density.
机译：当今最先进的钙钛矿太阳能电池（PSC）通过在低温（<150摄氏度）下进行溶液加工来利用多晶钙钛矿薄膜。增大钙钛矿薄膜的晶粒尺寸并钝化陷阱态以实现高功率转换效率非常重要。在本文中，首次报道了通过金属离子Ni2 +钝化钙钛矿薄膜的方法。已发现，由于NiCl2和Pbl（2）之间的溶解度不同，添加Ni2 +可以显着生成多孔Pbl（2）膜，这有利于MAI的渗透，最终形成大晶粒的钙钛矿膜。它进一步表明，Ni2 +离子可通过与配位不足的卤化物阴离子和富含卤化物的抗位点相互作用，有效钝化Pbl（3）（-）反位缺陷并抑制Pb-0的产生。因此，引入适度的Ni2 +离子可使光致发光寿命从285 ns显着增加到732 ns。因此，对于基于3％Ni 2+添加的PSC，在环境条件下具有增强的电池稳定性，可以实现20.61％的功率转换效率。这项工作为具有高结晶度和低陷阱密度的钙钛矿薄膜提供了一条有希望的途径。

著录项

  • 来源
    《Advanced Functional Materials》 |2018年第50期|1804286.1-1804286.8|共8页
  • 作者

    Gong Xiu; Guan Li; Pan Haiping; Sun Qiang; Zhao Xiaojuan; Li Hao; Pan Han; Shen Yan; Shao Yong; Sun Lijie; Cui Zhifang; Ding Liming; Wang Mingkui;

  • 作者单位

    Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China;

    Hebei Univ, Coll Phys Sci & Technol, 180 Wusi E Rd, Baoding 071000, Peoples R China;

    Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China;

    Zhejiang Normal Univ, Key Lab Minist Educ Adv Catalysis Mat, Jinhua 321004, Peoples R China;

    Shanghai Inst Space Power Sources, State Key Lab Space Power Technol, Shanghai 200245, Peoples R China;

    Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Qingdao 266590, Peoples R China;

    Natl Ctr Nanosci & Technol, Beijing 100000, Peoples R China;

    Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China;

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

    defect site; grain boundary; grain growth; passivation; perovskite solar cells;

    机译：缺陷部位;晶界;晶粒长大;钝化;钙钛矿太阳能电池;

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