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采用水热法制备了TiO_2和CdSe两种纳米棒材料,将两种纳米材料制备成TiO_2/CdSe复合纳米棒膜电极,并在复合膜上电化学聚合生成聚3-甲基噻吩poly(3-methylthiophene)(PMeT),研究了其光电化学性能.实验表明,当TiO_2与CdSe的物质的量复合比为2:1,PMeT的聚合时间为40 s,在电极电势为-0.2 V下ITO/TiO_2/CdSe/PMeT电极光电转换效率(IPCE)达到56%,对比ITO/TiO_2/CdSe复合膜电极在长波方向的光电转换效率明显提高,光吸收截止波长发生了明显的红移.同时以ITO/TiO_2/CdSe/PMeT组装了简易的杂化太阳电池,初步研究了光电池性能,光电池总效率为0.08%,V_(oc)=0.4 V,j_(sc)=0.61 mA/cm~2,ff=0.33.“,”TiO_2 and CdSe nanorods were prepared by a hydrothermal method. The photoelectrochemical properties of TiO_2/CdSe composite film and TiO_2/CdSe/PMeT film were investigated. The experiment re-suits showed that the incident photon to current conversion efficiency (IPCE) of TiO_2/CdSe/PMeT was ob-viously increased in comparison to that of TiO_2/CdSe composite film. The experiment results showed that the p-n heterojunction existed in the TiO_2/CdSe/PMeT nanostructure film, which favored the separation of electron-hole pairs generated by photoexcitation. The IPCE value of TiO_2/CdSe/PMeT film was 56% at -0.2 V, and the incident light wavelength of 370 nm. The hybrid solar cell was fabricated with TiO_2/CdSe nanostructure composite film and poly(3-methylthiophene) (PMeT). The conversion efficiency of the hybrid solar cell was 0.08%, short current 0.61 mA/cm~2, open voltage 0.4 V, fill factor 0.33, under irradiation of 100 mW/cm~2 white light from a Xe lamp.