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Applied Physics Letters / Volume 96 / Issue 22 / ELECTRONIC TRANSPORT AND SEMICONDUCTORS

Appl. Phys. Lett. 96, 222106 (2010); http://dx.doi.org/10.1063/1.3446849 (3 pages)

Band structure measurement of organic single crystal with angle-resolved photoemission

Huanjun Ding1, Colin Reese2, Antti J. Mäkinen3, Zhenan Bao2, and Yongli Gao1

1Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
2Department of Chemical Engineering, Stanford University, Stanford, California 94305, USA
3Optical Sciences Division, Naval Research Laboratory, Washington, DC 20375, USA

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(Received 15 February 2010; accepted 24 April 2010; published online 3 June 2010)

The electronic structure of bulk rubrene single crystal was studied with angle-resolved photoemission spectroscopy. Highly reproducible dispersive features were observed with nice symmetry about the Brillouin zone center and boundaries, representing the band structure measured for a bulk organic single crystal. The high quality of the surface was confirmed with scanning tunneling microscopy. The energy dispersion of the highest occupied molecular orbitals derived bands showed strong anisotropic behavior in the a-b plane of the unit cell. The measured band structure, however, differs unexpectedly from theoretical calculations in terms of the amount of the dispersion and the separation of the bands.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

Brillouin zones, organic semiconductors, photoelectron spectra

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3446849

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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