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采用直流反应磁控溅射的方法,制备了TiO2薄膜.用X射线衍射,原子力显微镜(AFM)和紫外-可见光分光光度计分别测试了TiO2薄膜的晶体结构、表面形貌及其紫外-可见光吸收谱,采用C/TiO2/ITO三层结构制备了TiO2光电导型紫外探测器,研究了它的光响应.初步实验结果表明:TiO2薄膜在4W的紫光灯辐射下,光电流可达2.1mA,10min的辐射时间内,光电流基本保持稳定,可见TiO2薄膜对紫外光有较高的灵敏度和稳定性,可作为一种良好的紫外光探测材料.

参考文献

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[3] Ferguson I;Tran CA;Karlicek RF;Feng ZC;Stall R;Liang S;Lu Y;Joseph C;Rutgers State Univ Dept Phys Piscataway NJ 08855 USA. .GaN and AlGaN metal-semiconductor-metal photodetectors[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,1997(1/3):311-314.
[4] Zheng S K;Xiang G;Wang T M et al.Photocatalytic activity studies of TiO2 thin films prepared by r. f magnetron sputtering[J].Vacuum,2004,72:79-84.
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