PHOTOELECTROCHEMICAL STUDY ON COPPER PHTHALOCYANINE FILMS

被引:51
作者
MINAMI, N [1 ]
WATANABE, T [1 ]
FUJISHIMA, A [1 ]
HONDA, K [1 ]
机构
[1] UNIV TOKYO,FAC ENGN,DEPT SYNTHET CHEM,BUNKYO KU,TOKYO 113,JAPAN
来源
BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1979年 / 83卷 / 05期
关键词
D O I
10.1002/bbpc.19790830505
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Copper phthalocyanine (CuPc) films vacuum-deposited on SnO//2 electrodes develop photocurrents by illumination with monochromatic light. Their action spectra reflect the absorption spectrum of the CuPc film. The effect of the thickness of the CuPc film and the illumination direction dependence of photocurrent action spectra are observed. Anodic photocurrents arise from excitons generated near the SnO//2/CuPc interface and are consistent with the ordinary dye sensitization scheme. Cathodic photocurrents are attributable to excitons which are generated and dissociate in the bulk of CuPc. Hydroquinone, p-quinone, and O//2 act as a reducing or an oxidizing agent. p-Quinone interacts with CuPc preferentially. Transient behaviors and open circuit photovoltages are also discussed.
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页码:476 / 481
页数:6
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