Syntheses of novel copolymers containing carbazole and their electrochromic properties

AYDIN A., KAYA İ.

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, cilt.691, ss.1-12, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 691
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.jelechem.2012.12.012
  • Dergi Adı: JOURNAL OF ELECTROANALYTICAL CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1-12
  • Anahtar Kelimeler: Electropolymerization, Thiophene, Carbazole, Spectroelectrochemistry
  • Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet

Özet

In this work, the compounds 2,5-bis(3,6-di(thiophen-3-yl)-9H-carbazol-9-yl)thiophene (2) and 1,4-bis [(3,6-di(thiophen-3-yl)-9H-carbazol-9-yl)methyl]benzene (4) were synthesized via Ullmann and Suzuki coupling reactions. Additionally, the homopolymers and copolymers of these compounds with thiophene (Th), 3,4-ethylenedioxythiophene (EDOT) and pyrrole (Py) were synthesized and coated onto an indium tin oxide (ITO) surface via electrochemical oxidative polymerization. The spectroelectrochemical and electrochromic properties of these compounds were also investigated. The switching ability of these copolymers was measured as the percent transmittance (T%) at their point of maximum contrast point. Structural characterizations of the compounds were performed by FT-IR and X-ray Photoelectron Spectroscopy (XPS). The morphologic properties of the copolymers were determined by Scanning Electron Microscopy (SEM). (C) 2012 Elsevier B.V. All rights reserved.