ZnO/TiO_2纳米管晶膜电极的制备及光电性能  

Preparation and Photoelectric Properties of ZnO/TiO_2 Nanotubes Film Electrodes

作　　者：赵丽[1,2] 范佳杰[2] 李静[1] 戴国田[1] 王世敏[1] 

机构地区：[1]湖北大学功能材料绿色制备与应用省部共建教育部重点实验室,武汉430062 [2]武汉理工大学材料复合新技术国家重点实验室,武汉430070

出　　处：《无机材料学报》2012年第6期585-590,共6页Journal of Inorganic Materials

基　　金：国家自然科学基金(51102087);973计划(2010CB234606);博士后科学基金(20100471164);湖北省教育厅科学技术研究计划项目(Q20091007;Z20101001);武汉市学科带头人计划(201051730551)~~

摘　　要：采用水热法制备了ZnO纳米棒,以ZnO纳米棒为原料制备出ZnO/TiO2纳米管晶膜电极并应用于染料敏化太阳能电池.用扫描电镜（SEM）、X射线衍射仪（XRD）、X射线能谱仪（EDX）和N2吸脱附分析等研究了样品的结构、表面形貌和化学组成,并通过紫外可见光度计和电化学工作站探讨了煅烧温度在80~600℃范围内ZnO/TiO2纳米管电极的光电化学性能.此外,研究经TiCl4化学处理的ZnO/TiO2纳米管电极光电性能的改善情况.结果表明,600℃煅烧的ZnO/TiO2纳米管电极制备的染料敏化太阳能电池表现出较优的光电性能,其短路电流密度（Jsc）为2.28 mA/cm2,开路电压（Voc）为0.631 V,光电转换效率η为0.66%.600℃煅烧的ZnO/TiO2纳米管经TiCl4处理后的染料敏化太阳能电池的光电性能得到显著改善,其光电转换效率η提高到1.06%.ZnO/TiO2 nanotubes were prepared using ZnO nanorods as raw materials,which were synthesized by hydrothermal methods.Then its performance as an electrode of a dye-sensitized solar cell was investigated.The obtained products were characterized by SEM,XRD,EDX and N2 adsorption.Furthermore,the photoelectric properties of ZnO/TiO2 nanotubes film electrodes calcined at different temperatures were investigated by UV-Vis adsorption spectra and electrochemical workstation.It is found that the DSSC based on ZnO/TiO2 nanotubes calcined at 600℃ have optimum photoelectric properties,Jsc=2.28 mA/cm2 and Voc= 0.631 V,yielding the 0.66% maximum conversion efficiency.Additionally,after TiCl4 posttreatment,the performance of DSSC made from ZnO/TiO2 nanotubes are improved obviously and the photoelectric conversion efficiency is up to 1.06%.

关 键 词：ZnO/TiO2纳米管电极 煅烧温度 光电性能 TICL4 热处理 

分 类 号：O643[理学—物理化学]