Energy level diagrams of C60/pentacene/Au and pentacene/C60/Au

被引：88

作者：

Kang, SJ

Yi, Y

Kim, CY

Cho, SW

Noh, M

Jeong, K

Whang, CN

机构：

[1] Techricaoled Co, Seoul, South Korea

[2] Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea

来源：

SYNTHETIC METALS | 2006年 / 156卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

pentacene; fullerene; XPS; UPS; interface dipole;

D O I：

10.1016/j.synthmet.2005.10.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic structures of pentacene and C-60 interfaces were investigated using ultraviolet photoelectron spectroscopy (UPS) and X-ray photoelectron spectroscopy (XPS). The magnitudes of measured interface dipole were 0.11 eV and 0.07 eV for the C-60 deposited on pentacene (C-60/pentacene) and the pentacene deposited on C-60 (pentacene/C-60), respectively. The obtained C 1s spectra on these samples show that no significant chemical bonds at the interface. The offsets of the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) at the C-60-pentacene interface were 1.29 eV and 0.89 eV for C-60/pentacene/Au, while for pentacene/C-60/Au they were 1.5 eV and 1.1 eV In this paper we present the complete energy level diagrams Of C-60/pentacene/Au and pentacene/C-60/Au. (C) 2005 Elsevier B.V. All rights reserved.

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页码：32 / 37

页数：6

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