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中文摘要：
结合水热法和阳极氧化法合成了Sb2S3/TiO2纳米管异质结阵列,采用场发射扫描电子显微镜、X射线衍射谱表征了异质结阵列的形貌和晶体结构。暗态下的电流-电压曲线表明Sb2S3/TiO2纳米管异质结阵列具有整流效应。相比于纯的TiO2纳米管阵列,Sb2S3/TiO2纳米管异质结阵列的光电性能有了显著的提升：在AM 1.5标准光强作用下,光电转换效率从0.07%增长到0.40%,表面光电压响应范围从紫外光区拓宽至可见光区。结合表面光电压谱和相位谱,分析了Sb2S3/TiO2纳米管异质结阵列中光生载流子的分离和传输性能。
英文摘要：
Sb2S3/TiO2 nanotube heterojunction arrays were prepared by combining anodization with hydrothermal method. The crystal structure and surface morphology of heterojunction arrays were characterized by field emission scanning electron microscopy（FESEM）and X-ray diffraction（XRD）.The dark current-voltage curve of Sb2S3/TiO2 nanotube heterojunction arrays reveals an obvious rectifying behavior.Compared with pure TiO2,improved photoelectrical properties of Sb2S3/TiO2 nanotube heterojunction arrays are obtained.The power conversion efficiency increases from 0.07%to 0.40% under AM1.5（100mW/cm~2）.The surface photovoltage response range is extended from 300 to 730nm.The separation and charge transfer process of photo-generated carriers is analyzed by the surface photovoltage and phase spectrums.
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