Wave-packet approach to transport properties of carrier coupled with intermolecular and intramolecular vibrations of organic semiconductors

被引：44

作者：

Ishii, Hiroyuki ^{[1
,2
]}

Honma, Keisuke ^{[1
,2
]}

Kobayashi, Nobuhiko ^{[1
,2
]}

Hirose, Kenji ^{[3
]}

机构：

[1] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 3058573, Japan

[2] Univ Tsukuba, Tsukuba Res Ctr Interdisciplinary Mat Sci, Tsukuba, Ibaraki 3058573, Japan

[3] NEC Corp Ltd, Green Innovat Res Labs, Tsukuba, Ibaraki 3058501, Japan

来源：

PHYSICAL REVIEW B | 2012年 / 85卷 / 24期

关键词：

CHARGE-TRANSPORT; SINGLE-CRYSTALS; POLARON MOTION; TRANSISTORS; DYNAMICS; MOBILITY; SYSTEMS; CELLS;

D O I：

10.1103/PhysRevB.85.245206

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a methodology to study the charge-transport properties of organic semiconductors by the time-dependent wave-packet diffusion method, taking the polaron effects into account. As an example, we investigate the transport properties of single-crystal pentacene organic semiconductors coupled with inter-and intramolecular vibrations within the mixed Holstein and Peierls model, which describes both hopping and bandlike transport behaviors due to small and large polaron formations. Taking into account static disorders, which inevitably exist in the molecular crystals, we present the temperature dependence of charge-transport properties in competition among the thermal fluctuation of molecular motions, the polaron formation, and the static disorders.

引用

页数：9

共 54 条

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