中文摘要：

将适量的碲、硫加入到硫化钠甲醇水溶液中反应生成Na_2TeS_3作为阴离子前驱体,以Cd（NO_3）_2为阳离子前驱体,通过连续离子层吸附与反应法（SILAR）制备CdTeS_3/TiO_2量子点敏化光阳极。采用拉曼光谱、X射线光电子能谱及能量色散X射线能谱分析表征了产物的价键结构和组成;通过紫外可见吸光光谱表征量子点的光吸收性能;利用J-V曲线与IPCE分别对CdS与CdTeS_3量子点敏化太阳能电池的光电性能进行了表征。实验结果表明,通过SILAR法制备的CdTeS_3量子点敏化太阳能电池能量转换效率比CdS量子点敏化太阳能电池能量转换效率高出约25%。

英文摘要：

The sodium sulfide-telluride was used as the anionic precursor synthesized by using S,Te and sodium sulfide,and cadmium nitrate was used as the cationic precursor. The successive ionic layer adsorption and reaction（ SILAR） was utilized to assemble cadmium sulfide-telluride onto the mesoporous Ti O2 films for quantum dots-sensitized solar cell（ QDSC） applications. The Raman spectra and energy dispersive spectroscopy（ EDX） were applied to investigate the bond structure and elements of sodium sulfide-telluride. The absorption capacity of the as-prepared CdTeS_3 quantum dots was assessed by UV-Vis spectrum. The photovoltic property of CdTeS_3 was characterized by J-V and IPCE curve. These results show that the long lifetime of electron and high availability ratio of light of CdTeS_3 QDSC are found to be the major advantages over the Cd S QDSC. Those factors are leading to that the maximum conversion efficiency of CdTeS_3 QDSC is about 25% more than that of CdS QDSC.