| 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 |
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| 引用本文： | 张莉,王艳芹,杨迈之,高恩勤,蔡生民. 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[J]. 高等学校化学学报, 2000, 21(7): 1075 |
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| 作者姓名： | 张莉 王艳芹 杨迈之 高恩勤 蔡生民 |
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| 作者单位： | 北京大学化学与分子工程学院, 北京 100871 |
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| 基金项目： | 国家自然科学基金! (批准号 :2 97730 0 3)，安徽省自然科学研究基金!(批准号 :99j10 2 11)资助 |
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| 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′bipyridine4,4′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360600nm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.
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| 关 键 词： | 光敏化 掺杂TiO2纳米多孔膜电极 复合半导体纳米多孔膜电极 光电化学 |
| 收稿时间： | 1999-05-18 |
Photoelectrochemistry of CdS/Zn2+-TiO2 Composite Semiconductor Nanoporous Films Sensitized by Ru(bpy)2(NCS)2 Dye |
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| ZHANG Li,WANG Yan-Qin,YANG Mai-Zhi,GAO En-Qin,CAI Sheng-Min. Photoelectrochemistry of CdS/Zn2+-TiO2 Composite Semiconductor Nanoporous Films Sensitized by Ru(bpy)2(NCS)2 Dye[J]. Chemical Research In Chinese Universities, 2000, 21(7): 1075 |
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| Authors: | ZHANG Li WANG Yan-Qin YANG Mai-Zhi GAO En-Qin CAI Sheng-Min |
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| Affiliation: | College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China |
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| 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/CdScomposite 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/CdScomposite semiconductor nanoporous films was greatly improved and reached maximum. |
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| Keywords: | Photosensitization Doped TiO_2 nanoporous-film electrodes Composite semiconductor nanoporous film electrodes Photoelectrochemistry |
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