Highest-Occupied-Molecular-Orbital Band Dispersion of Rubrene Single Crystals as Observed by Angle-Resolved Ultraviolet Photoelectron Spectroscopy

被引：167

作者：

Machida, Shin-ichi ^{[1
]}

Nakayama, Yasuo ^{[2
]}

Duhm, Steffen ^{[1
]}

Xin, Qian ^{[1
]}

Funakoshi, Akihiro ^{[1
]}

Ogawa, Naoki ^{[1
]}

Kera, Satoshi ^{[1
]}

Ueno, Nobuo ^{[1
]}

Ishii, Hisao ^{[1
,2
]}

机构：

[1] Chiba Univ, Grad Sch Adv Integrat Sci, Chiba 2638522, Japan

[2] Chiba Univ, Ctr Frontier Sci, Chiba 2638522, Japan

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 15期

关键词：

CHARGE-TRANSPORT; ORGANIC SEMICONDUCTOR; ELECTRONIC-STRUCTURE; THIN-FILMS; TRANSISTORS; PENTACENE; PHOTOEMISSION; MOBILITY; SPECTRA; ENERGY;

D O I：

10.1103/PhysRevLett.104.156401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electronic structure of rubrene single crystals was studied by angle-resolved ultraviolet photoelectron spectroscopy. A clear energy dispersion of the highest occupied molecular orbital-derived band was observed, and the dispersion width was found to be 0.4 eV along the well-stacked direction. The effective mass of the holes was estimated to be 0.65(+/- 0.1)m(0). The present results suggest that the carrier conduction mechanism in rubrene single crystals can be described within the framework of band transport.

引用

页数：4

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