CdS对TiO_2纳米管光伏电池的量子点敏化作用的研究

Fabrieation and Characterization of CdS Quantum Dots on TiO_2 Array Photovoltaic Cell Sensitization

采用阳极氧化法制备了TiO2纳米管阵列,对其制备条件HF溶液的浓度、氧化电压和时间进行了优化,得到了较为合理的制备条件.通过电沉积法在TiO2纳米管上复合了一层CdS纳米颗粒,用CdS量子点敏化了TiO2纳米管材料,得到了CdS/TiO2纳米管复合材料,分别用XRD和SEM对其进行了表征,在紫外灯照射下测定它们的光电转化性能.结果表明,用CdS量子点敏化后的CdS/TiO2纳米管复合材料的光电转换效率为6.1660%,是TiO2纳米管材料的8倍多,显著地提高了TiO2纳米管材料光电转换性能.

In this paper, the TiO2 nanotube （NT） arrays were prepared by anodic oxidation, the preparation con-ditions of HF solution concentration, oxidation voltage and time were optimized, the preparation conditions were rea？sonable. By electrodeposition on TiO2 NT composite a layer of CdS nanoparticles, CdS quantum dot sensitized TiO2 NT, the CdS/TiO2 NT composites, respectively by XRD and SEM were used to characterize the photoelectric conver？sion properties, determination of them under UV light irradiation. The results show that, with the photoelectric con？version of CdS/TiO2 NT composite CdS quantum dot sensitized the efficiency is 6.1660%, is 8 times that of TiO2 NT, significantly improve the photoelectric conversion properties of TiO2 NT.