Thermal degradation mechanisms of PEDOT:PSS

被引：271

作者：

Vitoratos, E. ^{[1
]}

Sakkopoulos, S. ^{[1
]}

Dalas, E. ^{[2
]}

Paliatsas, N. ^{[1
]}

Karageorgopoulos, D. ^{[1
]}

Petraki, F. ^{[3
]}

Kennou, S. ^{[3
]}

Choulis, S. A. ^{[4
]}

机构：

[1] Univ Patras, Dept Phys, Patras 26500, Greece

[2] Univ Patras, Dept Chem, Patras 26500, Greece

[3] Univ Patras, Dept Chem Engn, Patras 26500, Greece

[4] Cyprus Univ Technol, Dept Mech Engn & Mat Sci & Engn, CY-3603 Limassol, Cyprus

来源：

ORGANIC ELECTRONICS | 2009年 / 10卷 / 01期

关键词：

Conducting polymers; Conductivity degradation mechanisms; Thermal stability; PEDOT/PSS; Organic light emitting diodes; Organic solar cells; HOLE INJECTION LAYER; PHOTOELECTRON-SPECTROSCOPY; DC CONDUCTIVITY; THIN-FILMS; POLYMER; PSS; BLENDS; DIODES; POLY(3,4-ETHYLENEDIOXYTHIOPHENE); TRANSPORT;

D O I：

10.1016/j.orgel.2008.10.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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. (C) 2008 Elsevier B.V. All rights reserved.

引用

收藏

页码：61 / 66

页数：6

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