PbS/RuL_2(NCS)_2复合敏化SnO_2纳米多孔膜电极的光电化学研究  

A Photoelectrochemical Study of SnO_2 Nanoporous Film Electrode Sensitized by Composite PbS/RuL_2(NCS)_2

作　　者：李卫华[1] 郝彦忠[1] 乔学斌[1] 王艳芹[1] 杨迈之[1] 程虎民[1] 蔡生民[1] 

机构地区：[1]北京大学化学与分子工程学院,北京100871

出　　处：《化学学报》1999年第7期685-691,共7页Acta Chimica Sinica

基　　金：国家自然科学基金(29773003)资助项目

摘　　要：用光电化学方法和UV-vis吸收光谱研究了PbS和RuL_2(NCS)_2(L=2,2’-bipydine-4,4’-dicarboxylic acid)复合敏化SnO_2纳米晶多孔膜电极的光电化学行为.实验表明,复合敏化比用PbS或RuL_2(NCS)_2分别单独敏化的效果好,不仅使电极的光吸收拓展到可见光区,而且复合敏化显著提高了光电转换效率,并讨论了复合敏化电极的电荷传输机理.The photoelectrochemical behavior of SnO2 nanoporous film electrode sensitized from composite PbS/RuL2 ( NCS )2 was investigated by photoelectrochemical methods and UV - vis absorption spectroscopy. The results showed that the photosensitization of composite PbS and RuL2(NCS)2 for SnO2 nanoporous film electrode largely improved the conversion efficiency of light to electricity and was superior to the photosensitization of PbS or of RuL2(NCS)2 respectively. The charge transfer mechanism of compositely sensitized electrode was discussed in detail.

关 键 词：敏化 纳米晶 电极 光电化学 多孔膜 二氧化锡 

分 类 号：O646.54[理学—物理化学]