【摘要】 考察了三种方酸菁染料修饰纳米晶ＴｉＯ２薄膜电极表面应用于光电化学太阳能电池进行光电转换的情况，发现它们的光电化学性能参数按照Ｓｑ３＞Ｓｑ２＞Ｓｑ１的顺序，随着染料在纳米晶ＴｉＯ２上吸附力的增强而提高。其中，Ｓｑ３的光电转换效率为２．１７％，它在６５０ｎｍ处的最高单色光光电流效率ＩＰＣＥ值达到６．２％，表明方酸菁是一类优良的光电转换功能材料。更多还原

【Abstract】 Three squarylium cyanine dyes (Sqs) were investigated to explore their applications in photoelectrochemical solar cells for photoelectric conversion.And nanocrystalline TiO2 film electrodes modified with Sqs were prepared to probe the photosensitizaition effects,their photoelectrochemical parameters were improved with the increase of adsorption ability on nanocrystalline TiO2 in the order of Sq3>Sq2>Sq1.A rather high photoelectric conversion efficiency up to 2.17% and the top incident monochromatic photon-to-photocurrent conversion efficiency (IPCE) of 6.2% at 650nm were obtained from the Sq3modified nanocrystalline TiO2 film electrode,which indicated that Sqs could be used as an excellent photoelectric conversion functional materials.更多还原