Fullerene−Oligophenylenevinylene Hybrids: Synthesis, Electronic Properties, and Incorporation in Photovoltaic Devices
作者:Jean-François Eckert、Jean-François Nicoud、Jean-François Nierengarten、Sheng-Gao Liu、Luis Echegoyen、Francesco Barigelletti、Nicola Armaroli、Lahoussine Ouali、Victor Krasnikov、Georges Hadziioannou
DOI:10.1021/ja9941072
日期:2000.8.1
benzonitrile solution an efficient singlet−singlet OPV → C60 photoinduced energy-transfer process takes place, and occurrence of electron transfer, if any, is by far negligible relative to energy transfer. The C60−OPV derivatives have been incorporated in photovoltaic devices, and a photocurrent could be observed showing that photoinduced electron transfer does take place under these conditions. However, the
其中低聚亚苯基亚乙烯基 (OPV) 基团通过吡咯烷环连接到 C60 的富勒烯衍生物已通过由相应醛和肌氨酸原位生成的偶氮甲碱叶立德的 1,3-偶极环加成反应制备。电化学和光物理研究表明,共价键合的 OPV 部分和富勒烯球体之间的基态电子相互作用很小。光物理研究还表明,在二氯甲烷和苯甲腈溶液中,都会发生有效的单线态-单线态 OPV → C60 光致能量转移过程,并且电子转移的发生(如果有的话)相对于能量转移而言是微不足道的。C60-OPV 衍生物已被纳入光伏器件中,并且可以观察到光电流,表明在这些条件下确实发生了光诱导电子转移。然而,器件的效率受到来自 OPV 的光致电子转移这一事实的限制......