| 纳米尺度TiO2／聚吡咯多孔膜电极光电化学研究 |
| |
| 引用本文： | 柳闽生,李永舫.纳米尺度TiO2／聚吡咯多孔膜电极光电化学研究[J].高等学校化学学报,1997,18(6):938-942. |
| |
| 作者姓名： | 柳闽生 李永舫 |
| |
| 作者单位： | [1]北京大学化学系 [2]中国科学院化学研究所 |
| |
| 基金项目： | 国家自然科学基金，江西省自然科学基金，中国科学院化学研究所有机固体开放实验室基金 |
| |
| 摘 要： | 用光电流作用谱，光电流－电势图和ＵＶ－Ｖｉｓ光说研究了ＴｉＯ２／聚吡咯多孔膜电极在不含氧化还原对和含不同氧化还原体系电解质溶液中的光电转换过程。ＴｉＯ２／聚吡咯多孔膜电极双层ｎ型半导体结构，内层ＴｉＯ２多孔膜的禁带宽度为３．２６ｅＶ，外层聚吡咯膜的禁带宽度为２．２ｅＶ。
|
| 关 键 词： | 太阳能电池 二氧化钛 多孔膜 聚吡咯电极 |
Photoelectrochemical Studies on the Nano-Porous TiO_2/Polypyrrole Film Electrode |
| |
| LIU Min-Sheng, YANG Mai-Zhi, HAO Yan-Zhong, YU Chen, CAI Sheng-Min.Photoelectrochemical Studies on the Nano-Porous TiO_2/Polypyrrole Film Electrode[J].Chemical Research In Chinese Universities,1997,18(6):938-942. |
| |
| Authors: | LIU Min-Sheng YANG Mai-Zhi HAO Yan-Zhong YU Chen CAI Sheng-Min |
| |
| Abstract: | The photocurrent conversion processes of nanoporous TiO2/poly pyrrole (PPy)film electrode were studied in the electrolytes with or without redox couple by using the pho-tocurrent action spectra, the potential dependence of photocurrent and UV-Vis absorption spectra. lt is concluded that nanoporous, TiO2/PPy film electrode has a duplex n-type semi-conductor layer structure. The bandgap of nanoporous film is 3. 26 eV, and the bandgap of PPy film is 2. 2 eV. There fore, the semiconductor electrode modified by PPy can enlarge the visible optical absorption region and increases obviously the photocurrent in vislble region. The photocurrent threshold shifts to>600nm and this effect can improve the photon-elec-tron conversion efficiency of the semiconductor electrodes of large bandgap. |
| |
| Keywords: | Photoelectrochemistry Nano-porous TiO_2/PPy film electrode Conducting polymer |
| 本文献已被 CNKI 维普 等数据库收录！ |
