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中文摘要：
采用蒸发诱导自组装法制备了高度有序的TiO2介孔薄膜．利用x射线衍射（XRD）、扫描电子显微镜（SEM）和透射电子显微镜（TEM）等分析手段对其进行了表征．结果表明，所得样品的孔径约为5nm，孔道规则，且骨架为纯锐钛矿结构．紫外-可见光谱（uV—Vis）的表征结果表明，制备的TiO2介孔薄膜对波长小于380nm的紫外线有很强的吸收．对TiO2介孔薄膜的I-V（电流-电压）特性进行了表征，发现加光后其I-V曲线由暗态时的肖特基特性转变为欧姆特性，表明TiO2介孔薄膜对紫外光有很敏感的光电响应．
英文摘要：
Highly orderded TiO2 mesoporous thin films were synthesized through evaporation induced self- assembly（EISA）. The as-synthesized samples were characterized by X-ray diffraction （XRD）, scanning elec- tron microscope（SEM）, and transmission electron microscope（TEM）. The results show that the mesoporous sample has a highly organized and nanocrystaline anatase framework with pore size of about 5 nm. The UV-Vis spectra reveal that TiO2 mesoporous thin films have strong absorbance to UV light（A 〈380 nm）. The I-V（cur- rent-voltage） properties of TiO2 mesopomus thin films were characterized. The results show that the I-V characteristics have changed when UV light is on and off, which indicate that TiO2 mesoporous thin films have sensitive ultraviolet photoelectric response.
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