| 三甲川菁染料敏化SnO2纳米结构电极的光电化学 |
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| 引用本文： | 张莉,杨迈之,乔学斌,郝彦忠,高恩勤,蔡生民,孟凡顺,田禾. 三甲川菁染料敏化SnO2纳米结构电极的光电化学[J]. 北京大学学报(自然科学版), 2000, 36(2): 160-166 |
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| 作者姓名： | 张莉 杨迈之 乔学斌 郝彦忠 高恩勤 蔡生民 孟凡顺 田禾 |
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| 作者单位： | 1. 北京大学化学与分子工程学院,北京,100871
2. 华东理工大学精细化工研究所,上海,200237 |
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| 基金项目： | 国家自然科学基金，国家重点实验室基金 |
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| 摘 要： | 研究了三甲川菁敏化SnO2纳米结构电极的光电化学行为。结果表明，三甲川菁染料电子激发态能级位置能与SnO2纳米粒子导带边位置相匹配，从而使用该染料敏化可以显著地提高SnO2纳米结构电极的光电流，使SnO2纳米结构电极吸收波长红移至可见光区和近红外区，光电转换效率得到明显改善，IPCE值最高可达28.9%。
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| 关 键 词： | 染料敏化 SnO2纳米结构多孔膜电极 光电化学 三甲川菁 |
| 收稿时间： | 1999-03-29 |
Photoelectrochemical Studies on the SnO2 Nanostructured Porous Film Sensitized by Cyanine Dye |
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| ZHANG Li,YANG Maizhi,QIAO Xuebin,HAO Yanzhong,GAO Enqin,CAI SHengmin,MENG Fangshun,TIAN He. Photoelectrochemical Studies on the SnO2 Nanostructured Porous Film Sensitized by Cyanine Dye[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2000, 36(2): 160-166 |
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| Authors: | ZHANG Li YANG Maizhi QIAO Xuebin HAO Yanzhong GAO Enqin CAI SHengmin MENG Fangshun TIAN He |
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| Abstract: | The photoelectrochemical behaviors of the SnO-2 nanostructured porous film sensitized by cyanine dye were investigated in this paper. The results showed that the excitation state level matched the conduction band edge of SnO-2 nanoparticle. Therefore the sensitization of this dye can increase the photocurrent intensity of SnO-2 nanostructured electrode obviously and results in a red|shift of optical absorption from the ultra|violet region to the visible region. As a result, the light|to|electricity conversion efficiency was improved evidently, the maximum value of IPCE has reached 28.9%. |
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| Keywords: | dye sensitization SnO-2 nanostructured porous film electrode photoelectrochemisty cyanine dye |
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