Photoconductivity and charge transporting properties of metal-containing poly(p-phenylenevinylene)s

被引:41
作者
Chan, WK
Gong, X
Ng, WY
机构
[1] Department of Chemistry, University of Hong Kong, Hong Kong, Pokfulam Road
关键词
D O I
10.1063/1.120548
中图分类号
O59 [应用物理学];
学科分类号
摘要
A novel type of poly(p-phenylenevinylene)s which contain bis(2,2':6',2 ''-terpyridine) ruthenium (II) complexes has been developed. The absorption of the polymers at 500 nm was strongly enhanced by the metal complexes due to the presence of the metal-ligand charge transfer transition. The charge transportation is dispersive with hole carrier mobilities and activation energy of similar to 7 x 10(-5) cm(2) V-1 s(-1) and 0.20 eV, respectively, depending on the concentration of the metal complex. A log mu vs E-1/2 plot shows that hole mobilities decrease with increasing field, which suggests the presence of off-diagonal disorder in the hopping sites. (C) 1997 American Institute of Physics.
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页码:2919 / 2921
页数:3
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