...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >Isoindigo-based low bandgap conjugated polymer for o-xylene processed efficient polymer solar cells with thick active layers
【24h】

Isoindigo-based low bandgap conjugated polymer for o-xylene processed efficient polymer solar cells with thick active layers

机译：异靛蓝低带隙共轭聚合物，用于邻二甲苯处理的具有厚有源层的高效聚合物太阳能电池

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

A low bandgap conjugated polymer, i.e., poly[2,2'-bithiophene-alt-7-fluoro-N,N'-bis(2-octyldodecyl) isoindigo] (P(1FIID-BT)), was synthesized. The polymer was soluble in non-chlorinated solvents such as o-xylene and mesitylene, and exhibited a film optical bandgap of 1.61 eV as calculated from the absorption onset and a deep highest occupied molecular orbital (HOMO) energy level of -5.46 eV as measured by an electrochemical method. Remarkably high mobilities of 0.33 and 0.42 cm(2) V-1 s(-1) were obtained for organic field-effect transistors (OFETs) based on pristine and annealed films, respectively. Inverted polymer solar cells (PSCs) were fabricated with phenyl-C-61-butyric acid methyl ester (PC61BM) as the acceptor material and o-xylene as the processing solvent. The device efficiency was insensitive to the thickness of the active layer, and all devices with film thickness in the range of 105-340 nm showed a power conversion efficiency (PCE) higher than 6.5%. The devices based on 270 nm thick films displayed the highest performance with a V-OC of 0.89 V, a J(SC) of 14.50 mA cm(-2) and a FF of 0.58, leading to a PCE of 7.46%. This is the first low bandgap conjugated polymer for PSCs which combine three features: non-chlorinated solvent processability, high efficiency and insensitivity of efficiency to the active layer thickness.
机译：合成了低带隙共轭聚合物，即聚[2,2'-联噻吩-alt-7-氟-N，N'-双（2-辛基十二烷基）异靛蓝]（P（1FIID-BT））。该聚合物可溶于非氯化溶剂（例如邻二甲苯和均三甲苯），并且从吸收开始算起，薄膜光学带隙为1.61 eV，测得的深处最高占据分子轨道（HOMO）的能级为-5.46 eV通过电化学方法。对于基于原始膜和退火膜的有机场效应晶体管（OFET），分别获得了0.33和0.42 cm（2）V-1 s（-1）的极高迁移率。以苯基-C-61-丁酸甲酯（PC61BM）为受体材料，邻二甲苯为加工溶剂，制备了倒置聚合物太阳能电池（PSC）。器件效率对有源层的厚度不敏感，并且所有膜厚度在105-340 nm范围内的器件都显示出高于6.5％的功率转换效率（PCE）。基于270 nm厚膜的器件显示最高性能，V-OC为0.89 V，J（SC）为14.50 mA cm（-2），FF为0.58，PCE为7.46％。这是首款用于PSC的低带隙共轭聚合物，具有三种特征：非氯化溶剂的可加工性，高效率以及效率对活性层厚度不敏感。

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