Publication detail

Increase in electron scattering length in PEDOT:PSS by a triflic acid post-processing

FARKA, D. COSKUN ALJABOUR, H. BAUER, P. ROTH, D. BRUCKNER, B. KLAPETEK, P. SARICIFTCI, N. STADLER, P.

Original Title

Increase in electron scattering length in PEDOT:PSS by a triflic acid post-processing

Type

journal article in Web of Science

Language

English

Original Abstract

A stringent limitation in many optoelectronic devices, such as solar cells and light emitting diodes, is the intrinsic need for a transparent electrode. Uniting relevant aspects, indium tin oxide (ITO) is often the material of choice, however, alternatives are sought and being in particular found in conductive polymers. In this work, we present a novel doping strategy to arrive at highly conducting polymeric material based on poly-3,4-ethylenedioxythiophene (PEDOT). Based on commercial high conductivity PEDOT:PSS (Clevios PH 1000), and a post processing with aqueous triflic acid delivers a material that is both transparent and of low resistivity (5.23 x 10(-4) Omega cm). Furthermore, this material retains its conductive character over a large temperature range, indicating metallic behaviour. This is further supported by positive magnetoconductance effects at low temperatures (1.8-10 K) and extended mean free paths of the conduction electrons are observed-evidencing for a metallic state in this polymer.

Keywords

Transparent conductive electrodes; Conductive metallic polymers; Anderson localization; Mott-Ioffe-Regel limit; Infrared transparency

Authors

FARKA, D.; COSKUN ALJABOUR, H.; BAUER, P.; ROTH, D.; BRUCKNER, B.; KLAPETEK, P.; SARICIFTCI, N.; STADLER, P.

Released

31. 3. 2017

Publisher

SPRINGER WIEN

Location

WIEN

ISBN

1434-4475

Periodical

Monatshefte für Chemie

Year of study

148

Number

5

State

Republic of Austria

Pages from

871

Pages to

877

Pages count

7

URL

https://link.springer.com/article/10.1007/s00706-017-1973-1

BibTex

@article{BUT160892,
  author="Dominik {Farka} and Halime {Coskun Aljabour} and Peter {Bauer} and Dietmar {Roth} and Barbara {Bruckner} and Petr {Klapetek} and Niyazi Serdar {Sariciftci} and Philipp {Stadler}",
  title="Increase in electron scattering length in PEDOT:PSS by a triflic acid post-processing",
  journal="Monatshefte für Chemie",
  year="2017",
  volume="148",
  number="5",
  pages="871--877",
  doi="10.1007/s00706-017-1973-1",
  issn="1434-4475",
  url="https://link.springer.com/article/10.1007/s00706-017-1973-1"
}