首页> 外文期刊>Advanced energy materials >Sequentially Fluorinated PTAA Polymers for Enhancing V_(OC) of High-Performance Perovskite Solar Cells
【24h】

Sequentially Fluorinated PTAA Polymers for Enhancing V_(OC) of High-Performance Perovskite Solar Cells

机译:依次氟化的PTAA聚合物,用于增强高性能钙钛矿太阳能电池的V_(OC)

获取原文
获取原文并翻译 | 示例
           

摘要

The energy level alignment of the perovskite and hole transporting materials (HTMs) is essential for increasing the open-circuit voltage (V-oc) and enhancing the performance of perovskite solar cells (PSCs). In this work, new sequentially fluorinated poly(triarylamine) polymers (PTAA, 1F-PTAA, and 2F-PTAA) with tuned highest occupied molecular orbital (HOMO) energy levels are developed and applied as HTMs into PSCs. The fluorination approach successfully leads to stepwise downshifting of the HOMO levels of PTAA derivatives, resulting in an obvious increase in the V-oc and power conversion efficiency (PCE) of the PSCs. In particular, introduction of 1F-PTAA polymer in (FAPbI(3))(0.85)(MAPbBr(3))(0.15)-based mesoporous n-i-p structure PSCs achieves the high stabilized PCE of 21.2% at the maximum power point with improved V-oc of 1.14 V. To elucidate the importance of the optimized degree of fluorination of PTAA polymers on the photovoltaic performances, the optical, electrical, photophysical properties, and doping behaviors of the fluorinated PTAA derivatives are investigated.
机译:钙钛矿和空穴传输材料(HTM)的能级对准对于提高开路电压(V-oc)和增强钙钛矿太阳能电池(PSC)的性能至关重要。在这项工作中,开发了具有调整后的最高占据分子轨道(HOMO)能级的新的顺序氟化聚三芳基胺聚合物(PTAA,1F-PTAA和2F-PTAA),并将其作为HTM应用于PSC。氟化方法成功地导致PTAA衍生物的HOMO含量逐步降档,从而导致PSC的V-oc和功率转换效率(PCE)明显增加。特别是在基于(FAPbI(3))(0.85)(MAPbBr(3))(0.15)的中孔压区结构PSC中引入1F-PTAA聚合物可在最大功率点实现21.2%的高稳定PCE,并改善了V -oc为1.14V。为了阐明PTAA聚合物的最佳氟化度对光伏性能的重要性,研究了氟化PTAA衍生物的光学,电学,光物理性质和掺杂行为。

著录项

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