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 |
|---|---|
| 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 |
|---|---|
| METU | |
| TUBITAK | TBAG-108T941 |
| International Technological University |
Keywords
- Dithienothiophenes
- Electrochromic materials
- P S
- Spectroelectrochemistry