节点文献
Ru（bpy）2（NCS）2染料敏化CdS/Zn2+TiO2复合半导体纳米多孔膜的光电化学
Photoelectrochemistry of CdS/Zn2+-TiO2 Composite Semiconductor Nanoporous Films Sensitized by Ru（bpy）2（NCS）2 Dye
【摘要】 采用水热法合成了Zn2 + 离子掺杂的TiO2 纳米粒子 [Zn2 + 掺杂量 0 .5 % (物质的量的比 ) ],并用光电化学方法研究了经Ru(bpy) 2 (NCS) 2 (bpy =2 ,2′ bipyridine 4,4′ dicarboxylicacid)分别敏化的掺杂Zn2 + 的TiO2电极 (简写为Zn2 + TiO2 )和CdS/Zn2 + TiO2 复合半导体纳米多孔膜电极的光电化学行为 .实验证明Ru(bpy) 2 (NCS) 2 敏化CdS/Zn2 + TiO2 复合半导体纳米多孔膜电极比单独敏化Zn2 + TiO2 电极的光电转换效率高 ,且敏化Zn2 + TiO2 电极和敏化CdS/Zn2 + TiO2 复合半导体纳米多孔膜电极比Zn2 + TiO2 电极的光电流产生的起始波长都向长波方向移动 .在 36 0 6 0 0nm范围内 ,Ru(bpy) 2 (NCS) 2 敏化CdS/Zn2 + TiO2 复合半导体纳米多孔膜电极光电转换效率最好 .
【Abstract】 The Zn2+-doped TiO2 nanoparticles were prepared with hydrothermal method. The photoelectrochemical properties of Zn2+-doped TiO2 nanoporous film electrode sensitized by Ru（bpy）2·（NCS）2, and Zn2+-TiO2/CdS composite semiconductor nanoporous films sensitized by Ru（bpy）2（NCS）2 were studied respectively. Doping, sensitizing and forming composite semiconductor particles produced red-shifts on the photocurrent action spectra. The conversion efficiency of light to electricity for the Zn2+-TiO2/CdS composite semiconductor nanoporous films was greatly improved and reached maximum.
【Key words】 Photosensitization； Doped TiO2 nanoporous-film electrodes； Composite semiconductor nanoporous film electrodes； Photoelectrochemistry；
- 【文献出处】 高等学校化学学报 ,Chemical Research In Chinese Universities , 编辑部邮箱 ,2000年07期
- 【分类号】O646
- 【被引频次】50
- 【下载频次】272