...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ACS applied materials & interfaces >Manipulating Polymer Donors Toward a High-Performance Polymer Acceptor Based On a Fused Perylenediimide Building Block With a Built-In Twisting Configuration
【24h】

Manipulating Polymer Donors Toward a High-Performance Polymer Acceptor Based On a Fused Perylenediimide Building Block With a Built-In Twisting Configuration

机译：根据具有内置扭转构造的熔融的Ber红细酰亚胺构建块操纵聚合物供体朝向高性能聚合物受体

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A novel fused perylene diimide (PDI)-based polymer electron acceptor (PFPDI-BDF) with a built-in twisting configuration was constructed for application in all-polymer solar cells (all-PSCs). To shed light on the compatibility of the FPDI polymer acceptor and to identify a suitable polymer donor for device applications, we considered herein to investigate three polymer donors (PBDB-T, PTB7-Th, and PCPDTFBT) with different optical and electronic properties as well as polymer chain packing behavior for comparing the device performance. After being fabricated with PFPDI-BDF, polymer donor PBDB-T with a wide band gap showed a decent power conversion efficiency (PCE) of 4.86% with an open-circuit voltage (V-oc) of 0.82 V, a short-circuit current density (J(sc)) of 8.94 mA cm(-2), and a recorded fill factor (FF) of 66.3%, which is one of the best FF reported for PDI-based all-polymer solar cells (all-PSCs). The enhanced efficiency of 6.05% was found in the medium band gap polymer PTB7-Th devices due to the more complementary absorption region that makes the photoactive blends absorb more photons, giving rise to an increased J(sc) of 12.97 mA cm(-2). On the other hand, due to the inferior exciton dissociation/extraction efficiency and unfavorable morphology compatibility, the narrow band gap polymer donor PCPDTFBT/PFPDI-BDF devices exhibited the worst PCE of only 0.71% with a low J(sc) of 2.2 mA cm(-2) and a FF of 42.4%.
机译：在全聚合物太阳能电池（全-PSC）中，构建了一种具有内置扭曲构型的新型熔融掺杂二酰亚胺（PFPDI-BDF），用于应用于全聚合物太阳能电池（全-PSC）。在FPDI聚合物受体的相容性上阐明光，并鉴定适用于器件应用的合适的聚合物供体，我们认为具有不同的光学和电子性能的三种聚合物供体（PBDB-T，PTB7-TH和PCPDTFBT）作为聚合物链包装行为，用于比较器件性能。用PFPDI-BDF制造后，具有宽带隙的聚合物供体PBDB-T显示出4.86％的不良电源转换效率（PCE），开路电压（V-OC）为0.82 V，短路电流8.94 mA cm（-2）的密度（j（sc））和记录的填充因子（ff）为66.3％，这是基于PDI的全聚合物太阳能电池（全PSC）的最佳FF之一。由于使光活性混合物吸收更多光子的更互补的吸收区域，在中带间隙聚合物PTB7-TH器件中发现了6.05％的增强效率，从而使光活性混合物吸收更多的光子，产生12.97 mA cm的j（sc）增加（-2 ）。另一方面，由于劣质激子解离/提取效率和不利的形态容性，窄带间隙聚合物供体PCPDTFBT / PFPDI-BDF器件仅具有0.71％的最差PCE，低j（sc）为2.2 ma cm （-2）和42.4％的FF。

著录项

相似文献

  • 外文文献
  • 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