the structure was amorphous due to the thiophene side chain, and the extent of π stacking increased. After fabricating bulk‐heterojunction‐type polymer solar cells, the OPV characteristics were evaluated. The values of open‐circuit voltage (Voc), short‐circuit current (Jsc), fill factor, and power conversion efficiency (PCE) were 0.88 V, 7.9 mA cm−2, 45.4%, and 3.2%, respectively. © 2014 Wiley Periodicals
甲聚[benzodithiophene-中高音通过Stille偶联合成了[二-2-
噻吩基
喹喔啉]系列(
PBDTDPQ-EH,
PBDTDPQ-OD和
PBDTDPQ-
HDT)。引入2-癸基-4-己基
噻吩基(
HDT)侧链可达到最深的最高分子轨道(HO
MO)
水平。各种侧链的引入增加了
聚合物的分子量,并且该
聚合物在室温下很好地溶解在普通有机溶剂中。由于2D共轭结构,HO
MO能级(−5.20至-5.49 eV)降低。X射线衍射分析表明
PBDTDPQ-OD具有略带边缘的结构。但是,在
PBDTDPQ-
HDT的情况下,由于
噻吩侧链,该结构为无定形,并且π堆积的程度增加了。在制造体异质结型
聚合物太阳能电池之后,对OPV特性进行了评估。V OC),短路电流(Ĵ SC),填充因子,和功率转换效率(
PCE)分别为0.88 V,7.9毫安厘米-2分别45.4%和3.2%。©2014 Wiley Periodicals,Inc