Thermal degradation mechanisms of PEDOT:PSS

Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/4356

Title:	Thermal degradation mechanisms of PEDOT:PSS
Authors:	Vitoratos, Evangelos G. Sakkopoulos, Sotirios A. Dalas, Evangelos Paliatsas, N. Karageorgopoulos, Dimitrios Petraki, Fotini Kennou, Stella Choulis, Stelios A.
Major Field of Science:	Engineering and Technology
Field Category:	Materials Engineering
Keywords:	Conducting polymers;Conductivity degradation mechanisms;Thermal stability;PEDOT/PSS;Organic light emitting diodes;Organic solar cells
Issue Date:	Feb-2009
Source:	Organic Electronics, 2009, vol. 10, no. 1, pp. 61-66
Volume:	10
Issue:	1
Start page:	61
End page:	66
Journal:	Organic Electronics
Abstract:	The thermal stability of thin (50 nm) PEDOT:PSS films, was investigated by dc conductivity measurements, X-ray and UV photoelectron spectroscopies as a function of heating temperature and heating time. The mechanism of electrical conductivity as a function of temperature is consistent with a hopping type carrier transport. The electrical conductivity decreased, as a function of time, in agreement with a granular metal type structure, in which aging is due to the shrinking of the PEDOT conductive grains. XPS and UPS spectra indicate that conformational changes of the PEDOT:PSS film are responsible for this behaviour and a model for these modifications is proposed.
URI:	https://hdl.handle.net/20.500.14279/4356
ISSN:	15661199
DOI:	10.1016/j.orgel.2008.10.008
Rights:	© Elsevier
Type:	Article
Affiliation :	University of Patras Cyprus University of Technology
Appears in Collections:	Άρθρα/Articles

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