DIFFUSION AND DRIFT OF CHARGE-CARRIERS IN MOLECULARLY DOPED POLYMERS

被引：85

作者：

HIRAO, A

NISHIZAWA, H

SUGIUCHI, M

机构：

[1] Materials and Devices Research Laboratory, Research and Development Center, Toshiba Corporation, Saiwai-ku, Kawasaki 210, 1 Komukai, Toshiba-cho

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.75.1787

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The diffusion coefficient (D) and drift mobility (mu) of molecularly doped polymers have been obtained by Monte Carlo parameter fitting of a theoretical equation to time-of-flight transient photocurrent signals. The logarithm of mu increased linearly with root E. The negative field dependence of the mobility that has been observed at low electric field appeared to a superimposition of drift and diffusion. An anomalous field-assisted D was observed. The logarithm of D decreased linearly with T-2.

引用

页码：1787 / 1790

页数：4

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