Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.2785948
Title: Molecular orientation of 3, 4, 9, 10-perylene-tetracarboxylic-dianhydride thin films at organic heterojunction interfaces
Authors: Chen, W. 
Huang, H. 
Chen, S. 
Chen, L. 
Zhang, H.L. 
Gao, X.Y. 
Wee, A.T.S. 
Issue Date: 2007
Citation: Chen, W., Huang, H., Chen, S., Chen, L., Zhang, H.L., Gao, X.Y., Wee, A.T.S. (2007). Molecular orientation of 3, 4, 9, 10-perylene-tetracarboxylic-dianhydride thin films at organic heterojunction interfaces. Applied Physics Letters 91 (11) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2785948
Abstract: In situ low-temperature scanning tunneling microscopy and near-edge x-ray absorption spectroscopy measurements have been used to investigate the molecular orientation of 3,4,9,10-perylene-tetracarboxylic-dianhydride (PTCDA) thin films at the interface of organic heterojunctions of PTCDA on copper(II) phthalocyanine (CuPc). On the CuPc monolayer on highly oriented pyrolitic graphite, PTCDA molecules form a well-ordered in-plane herringbone structure with their molecular plane parallel to the substrate surface. The formation of multiple in-plane hydrogen bonding between neighboring PTCDA molecules is responsible for the flat-lying PTCDA on CuPc monolayer, and gives rise to the lying-down orientation of PTCDA thin films on both standing-up and lying-down CuPc thin films, as well as on Au(111) passivated by a self-assembled monolayer of octane-1-thiol. © 2007 American Institute of Physics.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/112619
ISSN: 00036951
DOI: 10.1063/1.2785948
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