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对一种新型半菁发色基团的碘化物(反式)-N-十八烷基-4-(2-(4-(2-二甲基氨基)苯基)乙烯基)喹啉碘化物和含锌硫代富瓦烯配阴离子形成的电荷转移复合物:二-[(反式)-N-十八烷基-4-(2-(4-(2-二甲基氨基)苯基)乙烯基)喹啉]合硫代富瓦烯锌酸盐的成膜性以及它们的LB膜修饰ITO电极上的光电响应性质进行比较研究,用含锌硫代富瓦烯配阴离子对这种半菁发色团阳离子进行组装后,能够改善其成膜性,使单位面积上的半菁发色团数目增加.同时,含锌硫代富瓦烯配阴离子的强吸电子能力还影响半菁发色团的电荷分布,使之有利于电荷分离,从而提高了光电流的量子产率.在无外界影响时,其光电转化的量子产率达0.9%,是碘化物的1.8倍.
A novel half-cyanine chromogenic group of iodine (trans) -N-octadecyl-4- (2- (4- (2- dimethylamino) phenyl) ethenyl) Charge-transfer complexes formed with compounds and zinc-containing thioflavin with anions: bis- [(trans) -N-octadecyl-4- (2- ) Vinyl] quinolino] sulfo-fulvalene Zincate and their photoelectrical response properties on LB film-modified ITO electrodes were comparatively studied. Using zinc-containing thioflavin with anion pair, Once the semicycocyanin chromophore cations are assembled, the film formability can be improved and the number of hemicyanine chromophores per unit area can be increased. At the same time, the strong electron-withdrawing ability of zinc-containing thiourene with anions also affects the charge distribution of the hemicyanine chromophore, which is conducive to charge separation, thereby increasing the quantum yield of photocurrent. In the absence of external influence, the quantum yield of photoelectric conversion reaches 0.9%, which is 1.8 times that of iodide.