开发了一种分步经济的合成策略,以针对噻吩[3,4– c ]吡咯-4,6-二酮(TPD)的D–A–π–A有机染料为染料敏化太阳能电池(DSSC)。通过顺序的Pd催化的直接C(杂)芳基化反应,推挽式小分子的合成从传统的六个步骤减少到了两个步骤。在本报告中,我们专注于通过筛选配体,酸添加剂,碱和溶剂来优化TPD的关键CH单芳基化。该反应证明对具有多种不同供体基团的新型D–A–π–A有机染料具有通用性,并且可以在最佳反应条件下有效制备几种衍生物。敏感的醛官能度是转化为TiO 2的锚定基团所需的中间体耐受性良好。根据我们的综合研究,使用两种设计的敏化剂对DSSC进行了制造和表征。器件的光伏特性提供了0.60–0.69 V的开路电压,10.85–11.07 mA cm -2的短路电流密度和69.9–70.8%的填充系数,这相当于总的功率转换效率为4.61–5.33%。
Five homologous series of α- and α,ω-substitutedoligothiophenes up to an undecamer with branched and linear alkyl chains, respectively, are presented. These series are compared with respect to self-organisation in solution and in solid state. UV/Vis absorption data for the long disubstituted branchedoligothiophenes indicate the formation of aggregates in solution, expressed by a bathochromic shift
Connecting Direct C−H Arylation Reactions with Dye-Sensitized Solar Cells: A Shortcut to D-A-π-A Organic Dyes
作者:Po-Han Lin、Te-Jui Lu、Deng-Jhou Cai、Kun-Mu Lee、Ching-Yuan Liu
DOI:10.1002/cssc.201500993
日期:2015.10
developed to target thieno[3,4‐c]pyrrole‐4,6‐dione (TPD)‐based D–A–π–A organic dyes for dye‐sensitized solar cells (DSSCs). Through sequential Pd‐catalyzed direct C−H (hetero)arylation reaction, synthesis of the push–pull‐type smallmolecules is reduced from the traditional six steps to two steps. In this report, we focus on the optimization of the key C−H monoarylation of TPD by screening ligands
开发了一种分步经济的合成策略,以针对噻吩[3,4– c ]吡咯-4,6-二酮(TPD)的D–A–π–A有机染料为染料敏化太阳能电池(DSSC)。通过顺序的Pd催化的直接C(杂)芳基化反应,推挽式小分子的合成从传统的六个步骤减少到了两个步骤。在本报告中,我们专注于通过筛选配体,酸添加剂,碱和溶剂来优化TPD的关键CH单芳基化。该反应证明对具有多种不同供体基团的新型D–A–π–A有机染料具有通用性,并且可以在最佳反应条件下有效制备几种衍生物。敏感的醛官能度是转化为TiO 2的锚定基团所需的中间体耐受性良好。根据我们的综合研究,使用两种设计的敏化剂对DSSC进行了制造和表征。器件的光伏特性提供了0.60–0.69 V的开路电压,10.85–11.07 mA cm -2的短路电流密度和69.9–70.8%的填充系数,这相当于总的功率转换效率为4.61–5.33%。