Study of electrolyte effects on electrochemical synthesis and p-doping of poly(thienyl biphenyl) films

Rose-Marie Latonen, Carita Kvarnström*, Maria Grzeszczuk, Ari Ivaska

*Korresponderande författare för detta arbete

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

13 Citeringar (Scopus)

Sammanfattning

The electrochemical synthesis and charging–discharging process of a copolymer consisting of 3-octylthiophene (3-OT) and biphenyl units
have been studied in different electrolytic media. The polymer material has been characterized by electrochemical and spectroscopic methods:
cyclic voltammetry (CV), electrochemical quartz crystal microbalance (EQCM), chronopotentiometry, chronoamperometry and FTIR
spectroscopy. The diffusion coefficients of different ions in poly(thienyl biphenyl) (PTB) films have been determined by chronoamperometry
and compared with corresponding values in poly(3-octylthiophene) (POT) and poly(paraphenylene) (PPP). The best electrolytic conditions
for synthesis of poly(thienyl biphenyl) concerning the copolymer structure was found to be in 0.1 M lithium hexafluoro arsenate (LiAsF6) in
acetonitrile. In this electrolyte solution, the content of phenylene segments compared to thienylene segments is highest resulting in a higher
degree of cross-linking compared with films made in the presence of the other electrolyte salts studied.
OriginalspråkEngelska
Sidor (från-till)257–269
TidskriftSynthetic Metals
Volym130
StatusPublicerad - 2002
MoE-publikationstypA1 Tidskriftsartikel-refererad

Nyckelord

  • Poly(thienyl biphenyl); Poly(paraphenylene); Electrochemical quartz crystal microbalance

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