The morphology and structure of vanadyl phthalocyanine thin films on lithium niobate single crystals
File(s)Ferroelectrics VOPc FINAL.docx (1.64 MB) c5tc03730a.pdf (2.16 MB)
Accepted version
Published version
Author(s)
Type
Journal Article
Abstract
The electric field of ferroelectric materials has been used as a driving force to promote molecular adsorption and control the orientation of small dipolar molecules. This approach has not been investigated on larger polyaromatic molecules, such as those used in organic electronic devices, even though the physical and electronic properties of thin films are strongly dependent on molecular structure and orientation, ultimately affecting device performance. Here we investigate the effects of model ferroelectric surfaces on a dipolar organic semiconducting molecule. Thin films of vanadyl phthalocyanine (VOPc) deposited on to (0001) and (2[1 with combining macron][1 with combining macron]0) lithium niobate were subjected to structural and morphological analysis. Whilst thin films could be grown on these surfaces, no obvious change to their structure or morphology was observed suggesting there was no influence of a surface electrical field or surface chemistry on the film structure, and that the substrate is more complex than previously thought.
Date Issued
2016-01-14
Date Acceptance
2015-12-04
Citation
Journal of Materials Chemistry C, 2016, 4 (2), pp.348-351
ISSN
2050-7534
Publisher
Royal Society of Chemistry
Start Page
348
End Page
351
Journal / Book Title
Journal of Materials Chemistry C
Volume
4
Issue
2
Copyright Statement
This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (EPSRC)
Grant Number
EP/F039948/1
EP/F04139X/1
Subjects
Science & Technology
Technology
Physical Sciences
Materials Science, Multidisciplinary
Physics, Applied
Materials Science
Physics
MONOLAYERS
LAYER
Publication Status
Published
Date Publish Online
2015-12-07