Adsorbate/absorbate interactions with organic ferroelectric polymers

Authors

Peter A. Dowben, University of Nebraska-LincolnFollow
Luis G. Rosa, University of Puerto Rico-HumacaoFollow
Carolina C. Ilie, State University of New York at Oswego
Jie Xiao, University of Nebraska-LincolnFollow

Date of this Version

8-2009

Comments

Published in Journal of Electron Spectroscopy and Related Phenomena 174:1–3 (August 2009), pp. 10–21; special issue on “Advanced Spectroscopies of Molecular Materials for Electronics”; doi: 10.1016/j.elspec.2009.03.005 Copyright © 2009 Elsevier B.V. Used by permission. http://www.elsevier.com/locate/elspec

Abstract

We discuss the interactions of adsorbates with the organic ferroelectric copolymer poly(vinylidene fluoride (PVDF)–trifluoroethylene (TrFE)). Range of molecular adsorbates is discussed from the smaller polar molecules like water, which is small enough to both adsorb and absorb, to the larger macrocyclic metal–organic metal phthalocyanines. The changes in local dipole orientation may affect the strength of the coupling between adsorbate or absorbate and the copolymer poly(vinylidene fluoride–trifluoroethylene). The interface dipole interactions may also affect device properties. The dipole interactions are implicated at the interface between copper phthalocyanine and poly(vinylidene fluoride with trifluoroethylene) affecting the band offsets and the diode properties.