Role of Si/film interface in photovoltaic devices based on aromatic molecular films

被引:9
作者
Komolov, A
Schaumburg, M
机构
[1] Univ Copenhagen, Dept Chem, CISMI, DK-2100 Copenhagen, Denmark
[2] St Petersburg State Univ, Inst Phys Res, St Petersburg, Russia
基金
俄罗斯基础研究基金会;
关键词
conducting polymer films; LB films; Si; opto-electric properties; light emitting diode;
D O I
10.1016/S0379-6779(00)00180-6
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Sandwich structures based on cast films of poly(3-dodecylthiophene) (PDDT) and multilayer Langmuir-Blodgett (LB) corbathiene films are studied under ambient conditions. The two types of the structures demonstrate similar photovoltaic properties. Photovoltage and photoconductivity are particularly distinguishable when n-Si substrate is used in the structures. Two photovoltaic components are observed: caused by light absorption in the film and caused by light absorption in n-Si substrate. Donor-acceptor interaction at film/n-Si interface superposed on rigid-band approach is used to suggest mechanisms of the phenomena observed. The mechanisms may be used in order to provide a low work function electrode for organic light emitting diodes. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:217 / 221
页数:5
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