• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Polyfluorene Derivatives are High-Performance Organic Hole-Transporting Materials for Inorganic-Organic Hybrid Perovskite Solar Cells
【24h】

Polyfluorene Derivatives are High-Performance Organic Hole-Transporting Materials for Inorganic-Organic Hybrid Perovskite Solar Cells

机译：聚芴衍生物是用于无机-有机杂化钙钛矿太阳能电池的高性能有机空穴传输材料。

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

Photovoltaics based on organic-inorganic perovskites offer new promise to address the contemporary energy and environmental issues. These solar cells have so far largely relied on small-molecule hole transport materials such as spiro-OMeTAD, which commonly suffer from high cost and low mobility. In principle, polyfluorene copolymers can be an ideal alternative to spiro-OMeTAD, given their low price, high hole mobility and good processability, but this potential has not been explored. Herein, polyfluorene derived polymers-TFB and PFB, which contain fluorine and arylamine groups, are demonstrated and can indeed rival or even outperform spiro-OMeTAD as efficient hole-conducting materials for perovskite solar cells. In particular, under the one-step perovskite deposition condition, TFB achieves a 10.92% power conversion efficiency that is considerably higher than that with spiro-OMeTAD (9.78%), while using the two-step perovskite deposition method, about 13% efficient solar cells with TFB (12.80%) and spiro-OMeTAD (13.58%) are delivered. Photo-luminescence reveals the efficient hole extraction and diffusion at the interface between CH_3NH_3PbI_3 and the hole conducting polymer. Impedance spectros-copy uncovers the higher electrical conductivity and lower series resistance than spiro-OMeTAD, accounting for the significantly higher fill factor, photocur-rent and open-circuit voltage of the TFB-derived cells than with spiro-MeOTAD.
机译：基于有机-无机钙钛矿的光伏技术为解决当代能源和环境问题提供了新的希望。迄今为止，这些太阳能电池很大程度上依赖于诸如spiro-OMeTAD之类的小分子空穴传输材料，其通常遭受高成本和低迁移率的困扰。原则上，聚芴共聚物价格低，空穴迁移率高，加工性能良好，因此可以替代螺环-OMeTAD，但这种潜力尚未得到开发。在此，已证明含有氟和芳基胺基团的聚芴衍生的聚合物-TFB和PFB，确实可以与甚至优于螺-OMeTAD作为钙钛矿太阳能电池的有效空穴传导材料。尤其是，在一步钙钛矿沉积条件下，TFB的功率转换效率达到了10.92％，大大高于采用螺旋-OMeTAD的功率转换效率（9.78％），而使用两步钙钛矿沉积方法时，太阳能的效率约为13％交付了具有TFB（12.80％）和spiro-OMeTAD（13.58％）的细胞。光致发光揭示了在CH_3NH_3PbI_3与空穴传导聚合物之间的界面上有效的空穴提取和扩散。阻抗分光光度法发现比spiro-OMeTAD具有更高的电导率和更低的串联电阻，这是因为TFB衍生的电池比spiro-MeOTAD具有更高的填充系数，光电流和开路电压。

著录项

  • 来源
    《Advanced Functional Materials》 |2014年第46期|7357-7365|共9页
  • 作者

    Zonglong Zhu; Yang Bai; Harrison Ka Hin Lee; Cheng Mu; Teng Zhang; Lixia Zhang; Jiannong Wang; He Yan; Shu Kong So; Shihe Yang;

  • 作者单位

    Nano Science and Technology Program The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong,Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong;

    Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong;

    Department of Physics Hong Kong Baptist University Kowloon, Hong Kong;

    Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong;

    Nano Science and Technology Program The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong,Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong;

    Department of Physics The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong;

    Department of Physics The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong;

    Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong;

    Department of Physics Hong Kong Baptist University Kowloon, Hong Kong;

    Nano Science and Technology Program The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong,Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong;

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

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