摘要
用光电化学方法研究了染料RuL2 (NCS) 2 (L =2 ,2′ bipydine 4,4′ dicarboxylicacid) (简写为Dye)、聚吡咯 (PPy)敏化氧化锌 (ZnO)纳米晶电极以及用RuL2 (NCS) 2 和PPy复合敏化ZnO纳米晶膜电极的光电化学行为 .实验表明 ,ZnO/PPy纳米多孔膜电极为双层n 型半导体结构 .PPy和RuL2(NCS) 2 都可对ZnO纳米晶膜产生敏化作用 ,ZnO/RuL2 (NCS) 2 /PPy复合多孔膜电极产生的光电流远大于ZnO/PPy纳米多孔膜电极和ZnO/Dye多孔膜电极产生的光电流 .讨论了该电极的光生电子的机理 ,初步测定了ZnO/RuL2 (NCS) 2 /PPy电极作为光阳极的光电化学电池的工作特性曲线 ,测得该电池的光电转换效率为 1 .3% ,填充因子为 0 .75 .
The nanostructured ZnO film electrodes were prepared.PPy and RuL 2(NCS) 2 could sensitize nanostructured ZnO film electrode.An initial PEC solar cell based on nanostructured ZnO/Dye/PPy (polypyrrole) film electrode was fabricated.A fill factor of 0.754 and a high overall light to electricity conversion efficiency of 1.3%for this type of solar cell were obtained.The sensitization mechanisms of the nanostructured ZnO electrodes were also discussed.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1999年第10期905-910,共6页
Acta Physico-Chimica Sinica
基金
国家自然科学基金! ( 2 97730 0 3)
中科院化学所有机固体实验室开放基金!资助项目
关键词
多孔膜电极
氧化锌
光电化学
太阳电池
光阳极
Nanostructured ZnO film electrode, PEC solar cell, Photosensitization, Photoelectrochemistry
