Charge transport, injection, and photovoltaic phenomena in oligo(phenylenevinylene) based diodes

被引：13

作者：

Melzer, C ^{[1
]}

Krasnikov, VV ^{[1
]}

Hadziioannou, G ^{[1
]}

机构：

[1] Univ Groningen, Ctr Mat Sci, Dept Polymer Chem, NL-9747 AG Groningen, Netherlands

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2003年 / 41卷 / 21期

关键词：

charge transport; photophysics; interface; morphology;

D O I：

10.1002/polb.10639

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We report on the charge transport and injection phenomena of (E,E,E,E)-1,4-bis[(4-styryl)styryl]-2-methoxy-5-(2'-ethylhexoxy)benzene (MEH-OPV5) sandwiched between asymmetric contacts. The hole mobility of MEH-OPV5 was determined by means of transient electroluminescence. The steady-state current was injection-limited. The electric field and temperature dependence of the current were quantitatively described by a phenomenological injection model of thermally assisted charge-carrier tunneling in a one-dimensional chain of hopping sites. Furthermore, we report on the photovoltaic properties of thin-film photovoltaic cells on the basis of donor-acceptor heterojunctions. MEH-OPV5 and buckminster fullerene were used as the donor and acceptor materials, respectively. The emphasis was on the role of morphology in such devices. (C) 2003 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 41: 2665-2673, 2003

引用

页码：2665 / 2673

页数：9

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