SYNTHESIS OF A NEW ELECTROCHROMIC POLYMER BASED ON TETRAPHENYLETHYLENE CORED TETRAKIS CARBAZOLE COMPLEX AND ITS ELECTROCHROMIC DEVICE APPLICATION

Carbas B. B., Odabas S., Turksoy F., TANYELİ C.

ELECTROCHIMICA ACTA, cilt.193, ss.72-79, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 193
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.electacta.2016.02.024
  • Dergi Adı: ELECTROCHIMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.72-79
  • Anahtar Kelimeler: Electropolymerization, Electrochromics, Tetraphenylethylene, Carbazole, AGGREGATION-INDUCED EMISSION, CLICK POLYMERIZATION, CONVENIENT SYNTHESIS, FLUORESCENT POLYMER, EFFICIENCY, MOLECULES, MOIETIES
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Poly-1,1,2,2-tetrakis(4-9H-carbazol-9-yl)phenyl)ethene P(TCP) was successfully synthesized by electrochemical oxidation of corresponding monomer, namely, 1,1,2,2-tetrakis(4-9H-carbazol-9-yl)phenyl)ethene (TCP) using dichloromethane as the solvent and tetrabutylammonium hexafluorophosphate (TBAPF(6)) as supporting electrolyte. Spectroelectrochemical properties of P(TCP) were investigated in situ recording the electronic absorption spectra of the polymer film coated on indium-tin oxide (ITO) at various potentials. P(TCP) displayed transparent to military green color in 1.80 s with an optical contrast of 23.0% (at 770 nm) and an optical band gap of 3.1 eV. The objective evaluation of the colors of P(TCP) at various potentials was performed through colorimetry studies on the basis of "Commission Internationale de l'Eclairage" (CIE) standards. The morphology of the polymer film was investigated by AFM analysis. A dual type electrochromic device based on P(TCP) was constructed and its spectroelectrochemical properties were investigated. The electrochromic device exhibits color change from transparent to dark blue with a good open circuit memory. (C) 2016 Elsevier Ltd. All rights reserved.