e-Journal of Surface Science and Nanotechnology
Online ISSN : 1348-0391
Conference -ISSS-7-
Electronic Structures of a Well-Defined Organic Hetero-Interface: C60 on Pentacene Single Crystal
Masayuki YamamotoYasuo NakayamaYuki UragamiHiroumi KinjoYuta MizunoKazuhiko MaseKaveenga Rasika KoswattageHisao Ishii
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2015 Volume 13 Pages 59-64

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Abstract

Electronic structures of donor-acceptor hetero-interfaces are crucial for performance of organic solar cell devices. In the present study, a well-defined organic molecular interface of pentacene single crystal and C60 overlayer is elucidated by x-ray and ultraviolet photoelectron spectroscopy (XPS and UPS) and photoelectron yield spectroscopy (PYS). An energy level diagram at this hetero-molecular contact in the “head-on” orientation is derived, which reveals the vacuum level alignment and flat-band conditions. [DOI: 10.1380/ejssnt.2015.59]

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