Photoelectrochemical studies on nanoporous TiO~2/conduction  polymer film electrode

Acta Chimica Sinica ›› 2001, Vol. 59 ›› Issue (3): 377-382. Previous Articles Next Articles

Original Articles

导电高聚物修饰纳米尺度TiO~2多孔膜电极的光电化学研究

柳闽生;杨迈之;郝彦忠;蔡生民;李永舫

江西九江师范专科学校化学系.九江(332000);北京大学化学系.北京(100871)

发布日期:2001-03-15

Photoelectrochemical studies on nanoporous TiO~2/conduction polymer film electrode

Liu Minsheng;Yang Maizhi;Hao Yanzhong;Cai Shengmin;Li Yongfang

Jiangxi Jiujiang Teachers Coll, Dept Chem.Jiujiang(332000);Beijing Univ., Dept. of Chem.Beijing(100871);Inst of Chem, CAS.Beijing(100080)

Published:2001-03-15

Abstract

The photocurrent conversion of nanoporous TiO~2/conducting polymer film electrode were studied in the electrolytes with or without redox couple by using the photocurrent action spectra, the potential dependence of photocurrent and UV-vis absorption spectra. It is concluded that nanoporous TiO~2/conducting polymer film electrode has a duplex n-type semiconductor layer structure. The bandgap of nanoporous film and the bandgap of poly pyrrole (PPy) film, and poly aniline (PAn) film is 3.26, 2.23 and 2.88 eV, respectively. Therefore, the semiconductor electrode modified by PPy or PAn can enlarge the visible optical absorption region and obviously increase the photocurrent in visivle region. The photocurrent threshould shifts to >600 nm. This effect may improve the photoelectron conversion efficiency of the semiconductor electrodes of large bandgap.

Key words: CONDUCTING POLYMER, TITANIUM DIOXIDE, MEMBRANE ELECTRODES, SOLAR CELLS, PHOTOELECTRICAL CONVERSION, PHOTO ELECTROCHEMISTRY

CLC Number:

O615
O646

Cite this article

Liu Minsheng;Yang Maizhi;Hao Yanzhong;Cai Shengmin;Li Yongfang. Photoelectrochemical studies on nanoporous TiO~2/conduction polymer film electrode[J]. Acta Chimica Sinica, 2001, 59(3): 377-382.

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导电高聚物修饰纳米尺度TiO~2多孔膜电极的光电化学研究

Photoelectrochemical studies on nanoporous TiO~2/conduction polymer film electrode

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