Very narrow photoemission bandwidth of the highest occupied state in a copper-phthalocyanine monolayer

被引：73

作者：

Kera, S

Yamane, H

Sakuragi, I

Okudaira, KK

Ueno, N

机构：

[1] Chiba Univ, Grad Sch Sci & Technol, Inage Ku, Chiba 2638522, Japan

[2] Chiba Univ, Fac Engn, Dept Mat Technol, Inage Ku, Chiba 2638522, Japan

[3] Inst Mol Sci, Okazaki, Aichi 4448585, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2002年 / 364卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(02)01302-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We observed a very narrow bandwidth of the highest occupied molecular orbital (HOMO) state in ultraviolet photoemission spectra (UPS) of copper-phthalocyanine monolayer deposited on graphite. The HOMO band in UPS consists of three components which may originate from the vibrational coupling. The full width at half maximum of each component was found to be similar to150 meV at 295 K. This HOMO-bandwidth leads to an estimation that the lifetime of the HOMO hole should be at least longer than 2.2 fs, which may be dominated by the electron transfer rate from the substrate to the molecule. (C) 2002 Elsevier Science B.V. All rights reserved.

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页码：93 / 98

页数：6

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