Charge transport in accumulation layers of organic heterojunctions

被引：32

作者：

Zhu, Feng ^{[1
]}

Wang, Haibo ^{[1
]}

Song, De ^{[1
]}

Lou, Kun ^{[1
]}

Yan, Donghang ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 10期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2980023

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We studied the charge transport in organic heterojunction films consisting of copper phthalocyanine (CuPc) and copper hexadecafluorophthalocyanine (F16CuPc). The heterojunction effect between CuPc and F16CuPc induced high-density carriers at both sides of heterojunction. The Hall effect was observed at room temperature, which demonstrated the existence of free carriers and their delocalized transport under heterojunction effect. The Hall mobility of 1.2 cm(2)/V s for holes and 2.4 cm(2)/V s for electrons indicated that the transport capability of the heterojunction films is comparable to single crystals. The transport process was further explained by the multiple trap-and-release model according to the temperature dependence of conduction. (c) 2008 American Institute of Physics.

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页数：3

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