节点文献
表面态对TiO2纳米晶薄膜光电流的影响
The Effect of the Surface State of TiO2 Nanoparticles on the Photocurrent Response
【摘要】 研究 Ti O2 纳米晶薄膜电极的光电化学特性 .通过测定阳极光电流 -时间瞬态光电流响应 ,分析纳米晶薄膜 /溶液界面的光生电荷转移的动力学规律 .光照后的慢电流响应与 Ti O2纳米材料的表面态有关 .导带电子向深能级表面态的传递是造成慢电流响应的原因 .
【Abstract】 The photoelectrochemistry properties of TiO 2 nanocrystalline thin films were studied. The transport kinetics of photoinduced carries at the nanocrystalline thin film electrode/electrolyte interface was investigated by the analysis of the transient photocurrent response. The slow response of photocurrent of the TiO 2 nanocrystalline thin film electrode upon the illumination was influenced by its surface state, which was attributed to the trap saturation effects.
【关键词】 二氧化钛;
纳米晶薄膜;
表面态;
光电化学;
【Key words】 TiO 2; nanocrystalline thin film; surface state; photoelectrochemistry;
【Key words】 TiO 2; nanocrystalline thin film; surface state; photoelectrochemistry;
【基金】 国家自然科学基金! (批准号 :2 97730 17);中国科学院王宽诚博士后工作奖励基金;中国博士后科学基金
- 【文献出处】 吉林大学自然科学学报 ,Acta Scientiarium Naturalium Universitatis Jilinensis , 编辑部邮箱 ,2001年02期
- 【分类号】O646
- 【被引频次】10
- 【下载频次】280