Synthesis and electropolymerization of 5,12-dihydrothieno[3′,4′:2,3][1,4]dioxocino[6,7-b]quinoxaline and its electrochromic properties |
| |
Authors: | Mine Sulak Ak |
| |
Institution: | a Ankara University, Department of Chemistry, 06100 Ankara, Turkey b Middle East Technical University, Department of Chemistry, 06531 Ankara, Turkey |
| |
Abstract: | Synthesis of a new thiophene-based monomer; 5,12-dihydrothieno3′,4′:2,3]1,4]dioxocino6,7-b]quinoxaline (DDQ), was realized. The chemical structure of the monomer was characterized by 1H NMR, FTIR and mass spectroscopy techniques. Electrochemical polymerization of DDQ and characterization of the resulting polymer P(DDQ)] was performed. Moreover, the spectroelectrochemical and electrochromic properties of the polymer film were investigated. P(DDQ) has a low oxidation potential (0.9 V) and low band gap (1.73 eV) compared to polythiophene. In addition, dual-type polymer electrochromic device (ECD) based on P(DDQ) with poly(3,4-ethylenedioxythiophene) (PEDOT) was constructed. Spectroelectrochemistry, electrochromic switching, stability and open-circuit stability of the device were studied. It was observed that polymer have good switching time, reasonable contrast and optical memory. |
| |
Keywords: | Conducting polymers Dioxocino quinoxalines Electrochemical polymerization Electrochromic devices Electrochromism Spectroelectrochemistry |
本文献已被 ScienceDirect 等数据库收录! |
|