Interfacial electronic structure of copper phthalocyanine and copper hexadecafluorophthalocyanine studied by photoemission

被引：110

作者：

Lau, KM ^{[1
]}

Tang, JX

Sun, HY

Lee, CS

Lee, ST

Yan, DH

机构：

[1] City Univ Hong Kong, Dept Phys & Mat Sci, Ctr Super Diamond & Adv Films, Hong Kong, Hong Kong, Peoples R China

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

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 17期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2198484

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Electronic structures of the heterojunction between copper phthalocyanine (CuPc) and copper hexadecafluorophthalocyanine (F16CuPc) were studied with ultraviolet photoemission spectroscopy. Band bending and an interface dipole were observed at the interface due to the formation of an electron accumulation layer and a depletion layer in F16CuPc and CuPc, respectively. Such an energy level alignment leads to interesting ambipolar characteristics for application of the CuPc/F16CuPc junction in organic field-effect transistors. (c) 2006 American Institute of Physics.

引用

页数：3

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