用光电流作用谱，光电流电势图和ＵＶＶｉｓ吸收光谱研究了ＣｄＳ和ＲｕＬ２（ＮＣＳ）２（Ｌ＝２，２’ｂｉｐｙｒｉｃｌｙｌ４４’ｄｉｃａｒｂｏｘｙｌｉｃａｃｉｄ）复合敏化ＺｎＯ纳米晶电极的光电化学行为。实验证实采用复合敏化比分别用ＣｄＳ或Ｒｕ（Ⅱ）配合物单独敏化ＺｎＯ纳米晶电极效果好，通过复合敏化可防止导带上由光注入产生的电子的反向转移而避免了电子的损失。复合敏化电极使可见光区光吸收增加，光电流起始波长红移至大于６００ｎｍ，光电转换效率明显提高。 The effects of CdS and RuL2 (NCS) 2 (L = 2,2’bipyriclyl44dicarboxylic acid) composite sensitized ZnO nanocrystalline electrode were studied by means of photocurrent action spectrum, photocurrentpotential graph and UVVis absorption spectrum. Photoelectrochemical behavior. Experiments show that composite sensitized with CdS or Ru (Ⅱ) complexes sensitized ZnO nanocrystal electrode alone is good, through the composite sensitization can prevent the conduction band by light injection of electrons generated by the reverse transfer and avoid the electronic Loss. The composite sensitized electrode increases the light absorption in the visible light region, and the initial wavelength of the photocurrent is red-shifted to more than 600 nm, thereby remarkably improving the photoelectric conversion efficiency.