TY  - JOUR
AU  - Palumbiny, Claudia Maria
AU  - Heller, Christoph
AU  - Schaffer, Christoph
AU  - Koerstgens, Volker
AU  - Santoro, Gonzalo
AU  - Roth, Stephan
AU  - Mueller-Buschbaum, Peter
TI  - Molecular Reorientation and Structural Changes in Cosolvent-Treated Highly Conductive PEDOT:PSS Electrodes for Flexible Indium Tin Oxide-Free Organic Electronics
JO  - The journal of physical chemistry  / C
VL  - 118
IS  - 25
SN  - 1932-7447
CY  - Washington, DC
PB  - Soc.
M1  - PUBDB-2015-01010
SP  - 13598 - 13606
PY  - 2014
N1  - (c) American Chemical Society. Post referee full text in progress. Embargo full text 1 year from June 1, 2014.
AB  - Cosolvent addition of glycerol (G) and the use of the cosolvent ethylene glycol (EG) increase the conductivity of poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS) films to values on the order of indium tin oxide conductivity. The underlying morphological changes are probed via scanning electron microscopy as well as advanced scattering techniques microfocused grazing incidence small- and wide-angle X-ray scattering. The enhancement in conductivity is ascribed to fundamental morphological changes and molecular reorientation within crystalline domains. Thereby, the conductivity enhancement is directly correlated to domain ruptures toward smaller and more densely packed PEDOT domains together with an enhanced crystallinity, the removal of PSS molecules, and moreover a reorientation of the conjugated PEDOT molecules. The latter is reported and quantified here for PEDOT:PSS films for the first time.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000338184300030
DO  - DOI:10.1021/jp501540y
UR  - https://bib-pubdb1.desy.de/record/206546
ER  -