Journal Article

PUBDB-2015-01010

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Molecular Reorientation and Structural Changes in Cosolvent-Treated Highly Conductive PEDOT:PSS Electrodes for Flexible Indium Tin Oxide-Free Organic Electronics

Palumbiny, C. M.>Extern* ; Heller, C. ; Schaffer, C.>Extern* ; Koerstgens, V.>Extern* ; Santoro, G.>Extern* ; Roth, S.DESY* ; Mueller-Buschbaum, P. (Corresponding Author)>Extern*

2014
Soc. Washington, DC

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Please use a persistent id in citations: doi:10.1021/jp501540y

Abstract: 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.

Note: (c) American Chemical Society. Post referee full text in progress. Embargo full text 1 year from June 1, 2014.

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Contributing Institute(s):

1. DOOR-User (DOOR)
2. Experimentebetreuung PETRA III (FS-PE)

Research Program(s):

1. PETRA Beamline P03 (POF2-54G14) (POF2-54G14)
2. FS-Proposal: I-20120602 EC (I-20120602-EC) (I-20120602-EC)

Experiment(s):

1. PETRA Beamline P03 (PETRA III)

Appears in the scientific report 2014

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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