中文摘要：

在水相中采用阳极氧化法制备了高度有序的TiO2纳米管阵列。探讨了稀土掺杂和染料敏化等因素对TiO2纳米管光电性能的影响,并对样品分别进行了X射线衍射（XRD）、扫描电镜（SEM）、紫外吸收光谱（UV-V is）、荧光光谱（FS）和光电测试等性能测定。实验结果表明,通过稀土（Gd3＋,La3＋,Y3＋）掺杂TiO2纳米管的光电性能都有所提升,其中Y3＋掺杂的TiO2纳米管的光电效率和填充因子最高达到0.92%和0.59,Y3＋掺杂后染料敏化TiO2纳米管太阳能光阳极的光电转换效率增加了近3.2倍。

英文摘要：

The highly ordered and uniform TiO2 nanotube arrays were fabricated by anodic oxidation in aqueous solution.The effects of rare earth-doping and dye-sensitization on the photovoltaic properties of the TiO2 nanotube arrays were studied.These TiO2 samples were characterized by scanning electron microscope（SEM）,X-ray diffraction（XRD）,UV-Vis absorption spectroscope（UV-Vis）,fluorescence spectroscope（FS）,and the photovoltaic properties were investigated.The results showed that the modification of rare-earth doping improved the photovoltaic properties of TiO2 nanotube arrays.The highest power conversion efficiency and filling factor of Y3＋/ TiO2 nanotube arrays achieved 0.92% and 0.59 respectively,and the dye-sensitization enhanced the power conversion efficiency of Y3＋/ TiO2 nanotube arrays by 3.2 times.