Impact of fluorination on initial growth and stability of pentacene on Cu(111)

Glowatzki, H., Heimel, G., Vollmer, A., Wong, S. L., Huang, H., Chen, W., Wee, A. T. S., Rabe, J. P. and Koch, N. (2012) Impact of fluorination on initial growth and stability of pentacene on Cu(111). Journal of Physical Chemistry C, 116 14: 7726-7734. doi:10.1021/jp208582z

Author Glowatzki, H.
Heimel, G.
Vollmer, A.
Wong, S. L.
Huang, H.
Chen, W.
Wee, A. T. S.
Rabe, J. P.
Koch, N.
Title Impact of fluorination on initial growth and stability of pentacene on Cu(111)
Journal name Journal of Physical Chemistry C   Check publisher's open access policy
ISSN 1932-7447
Publication date 2012-04-12
Sub-type Article (original research)
DOI 10.1021/jp208582z
Open Access Status
Volume 116
Issue 14
Start page 7726
End page 7734
Total pages 9
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Abstract Structure, growth, thermal stability, and electronic properties of thin films of the fully fluorinated analogue to the archetypical organic semiconductor pentacene (PEN), perfluoropentacene (PFP), were investigated on Cu(111) at room temperature by scanning tunneling microscopy (STM), low energy electron diffraction (LEED), ultraviolet photoelectron spectroscopy (UPS), and X-ray photoelectron spectroscopy (XPS). In contrast to PEN, where molecules could only be imaged by STM at full monolayer coverage, PFP was seen to stabilize in disordered clusters already in the submonolayer regime. Furthermore, while long-range order was observed for closed PEN molecular monolayers, PFP only formed a disordered first wetting layer. Highly ordered domains were not observed until the formation of the second layer of PFP. In this layer, the molecular planes are inclined to the surface, as supported by additional STM measurements on graphite and theoretical modeling. Careful consideration of the structural details in the transitional growth regime from molecular mono- to multilayers thus emerges as the key ingredient to achieving a deeper understanding of metal/organic interfaces relevant for organic electronic devices.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mechanical & Mining Engineering Publications
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Created: Thu, 07 Nov 2013, 12:53:36 EST by Deanna Mahony on behalf of School of Mechanical and Mining Engineering