A new series of random conjugated copolymers containing 3,4-diphenyl-maleimide and thiophene units for organic photovoltaic cell applications
作者:Li-Hsin Chan、Shiang-Yin Juang、Ming-Chou Chen、Yu-Jou Lin
DOI:10.1016/j.polymer.2012.04.014
日期:2012.5
A series of random conjugated copolymers (labeled PMLTQT, PMLT2T, and PMLT3T) consisting of 3,4-diphenyl-maleimide and various thiophene derivatives has been designed and synthesized via Stille cross-coupling for application in polymer solar cells. These copolymers were readily soluble in common organic solvents, thermally stable from 405 to 437 °C upon heating, and exhibited good absorption in the
通过Stille交叉偶联法设计并合成了由3,4-二苯基-马来酰亚胺和各种噻吩衍生物组成的一系列无规共轭共聚物(标记为PMLTQT,PMLT2T和PMLT3T),用于聚合物太阳能电池。这些共聚物易溶于常见的有机溶剂,加热后在405至437°C的温度下具有热稳定性,并在300至650 nm的紫外线和可见光区域表现出良好的吸收性。通过添加50 wt%的[6,6]-苯基C 61丁酸甲酯(PC 61BM)。它们的电化学性质表明,这些共聚物的最高占据分子轨道水平在-5.63–5.73 eV的范围内,具有更好的空气稳定性和适用于光伏电池的高开路电压(V oc)。由重量比为1:3的电子给体共聚物活性层与电子受体PC 61 BM或[6,6]-苯基C 71丁酸甲酯(PC 71 BM)混合而成的块状异质结光伏器件调查。含有PMLT3T和PC 71 BM(1:3,w / w)作为活性层的光伏器件在这些共聚物中的V