Electrochemical and optical properties of biphenyl bridged-dicarbazole oligomer films: Electropolymerization and electrochromism

KOYUNCU S., GÜLTEKİN B., ZAFER C., Bilgili H., Can M., Demic S., ...Daha Fazla

ELECTROCHIMICA ACTA, cilt.54, sa.24, ss.5694-5702, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Derleme
  • Cilt numarası: 54 Sayı: 24
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.electacta.2009.05.014
  • Dergi Adı: ELECTROCHIMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.5694-5702
  • Anahtar Kelimeler: Carbazole, Electrochemical polymerization, Electrochromic devices
  • Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet

Özet

4,4'-Di(N-carbazoyl)biphenyl monomer (CBP) was synthesized and coated onto ITO-glass surface by electrochemical oxidative polymerization. Its CV shows two distinct one-electron and stepwise oxidation processes occurred at 1.29 and 1.61 V. By using this property, the monomer was electrochemically polymerized separately at these oxidation states and thus, two different oligomer films were obtained afterwards. Their spectro-electrochemical and electrochromic properties were also investigated. Switching ability of the oligomers was evaluated by kinetic studies upon measuring the percent transmittance (%T) at their maximum contrast point, indicating that these oligomers were found to be suitable material for electrochromic devices. (C) 2009 Elsevier Ltd. All rights reserved.