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Spectroelectrochemical Studies on Quinacridone by Using Poly(vinyl alcohol) Coating as Protection Layer
Author(s) -
Enengl Sandra,
Enengl Christina,
Stadler Philipp,
Neugebauer Helmut,
Sariciftci Niyazi Serdar
Publication year - 2015
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201500165
Subject(s) - vinyl alcohol , thin film , materials science , doping , electrochemistry , layer (electronics) , infrared , solubility , infrared spectroscopy , characterization (materials science) , coating , organic semiconductor , chemical engineering , analytical chemistry (journal) , polymer , chemistry , organic chemistry , nanotechnology , optoelectronics , optics , electrode , composite material , physics , engineering
Spectroscopic measurements in the infrared range combined with electrochemistry are a powerful technique for investigation of organic semiconductors to track changes during oxidation and reduction (p‐ and n‐doping) processes. For these measurements it is important that the studied material, mostly deposited as a thin film on an internal reflection element, does not dissolve during this characterization. In this study we introduce a technique that allows infrared spectroelectrochemical characterization of films of these materials for the first time. In many cases so far this has been impossible, due to solubility in the oxidized and/or reduced form. This novel technique is shown on thin films of quinacridone by adding a protection layer of poly(vinyl alcohol) (PVA).