采用等离子体增强化学气相沉积(PE-CWD)的方法及TiCl4/O2混合气体在常温常压下可制备纳米晶TiO2多孔薄膜.利用偏光显微镜分析(PM)、扫描电子显微镜分析(SEM)、高分辨透射电镜分析(HRTEM)、X光衍射分析(XRD)等检测手段,系统地对纳米晶TiO2多孔膜表面形貌以及成分进行表征.研究结果表明:使用等离子体化学气相沉积方法,可以在常温常压下快速沉积纳米晶TiO2多孔薄膜,并且PE-CVD与传统的化学方法相比具有低能耗、低污染、方法简便、成本低等优点,是具有良好发展前景的纳米晶多孔薄膜制备新方法.
Porous nanocrystalline TiO2 thin film was deposited on glass substrates by dielectric barrier discharge plasma-enhanced chemical vapour deposition (PE - CVI)) with pulsed bias voltage and TiCl4/O2 mixture. The chemical composition and the surface structure were analyzed with Polarizing Microscope (PM), Scanning Electron Microscope (SEM), High Resolution Transmission Electron Microscope (HRTEM), X- ray Diffraction (XRD) etc. Experiment results show that the film could be obtained in a short single step at atmospheric pressure and room temperature. And the method is environment-friendly. All of these make it a promise method to fabricate porous nanocrystalline thin film, which has potential applications in photocatalysts, photovoltaic, biocompatibility and sanitary.