Abstract
A conducting polymer of 3,5-diphenyl-2,6-dithiophene-2-yl-dithieno[3,2- b;2',3'-d]thiophene (Thy 2Ph 2DTT) was synthesized by potentiodynamic method in dichloromethane (DCM)/acetonitrile (AN) (1/1)-NaClO 4/LiClO 4 (0.1:0.1 M) solvent-electrolyte mixture. The resulting polymer was characterized via cyclic voltammetry (CV), Fourier transform infrared (FTIR) and UV-Vis spectroscopy. Its dual type electrochromic device (ECD) with PEDOT was constructed. Spectroelectrochemical and electrochromic properties of the polymer film and the device were investigated in detail. A potential range of 0.0-2.0 V was found to be suitable for operating the P(Thy 2Ph 2DTT)/PEDOT device between red and blue colors. The device displayed good open circuit memory and stability. Properties of Thy 2Ph 2DTT and P(Thy 2Ph 2DTT) were compared with 3,5-diphenyldithieno[3,2-b;2',3'-d]thiophene (Ph 2DTT) and its polymer P(Ph 2DTT), reported previously, which revealed that introduction of thiophenes to the peripherals of Ph 2DTT improved the properties of the corresponding polymer.
Original language | English |
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Pages (from-to) | 1010-1015 |
Number of pages | 6 |
Journal | Synthetic Metals |
Volume | 162 |
Issue number | 11-12 |
DOIs | |
Publication status | Published - Jul 2012 |
Funding
Authors thank to TUBITAK (TBAG-108T941) for a research grant, ITU for a grant to Onur Sahin (MS), Prof Ahmet Onal of METU for his useful discussions of electrochemical measurements and Unsped Global Lojistik for financial support.
Funders | Funder number |
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METU | |
TUBITAK | TBAG-108T941 |
International Technological University |
Keywords
- Dithienothiophenes
- Electrochromic materials
- P S
- Spectroelectrochemistry