Journal
SYNTHETIC METALS
Volume 160, Issue 5-6, Pages 432-435Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2009.11.025
Keywords
Oligothiophene derivative; Microwave irradiation reaction; Electrochromic property; Electrochromic device
Funding
- Ministry of Education of China
- Ministry of Science and Technology of China [2001-CCA03500]
- National Natural Science Foundation of China [20674022, 20774031]
- Natural Science Foundation of Guangdong [2006A 10702003, 2009B090300025]
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In order to develop novel organic electrochromic materials, oligothiophene derivatives, 5,5 ''-biformyl-2,2':5'.2 ''-terthiophene (OHC-3T-CHO) and 2,3,4,5-tetrathiopenyl-thiophene (X-T), were synthesized. Three electrochromic devices have been fabricated using OHC-3T-CHO and XT, and the electrochromic properties of OHC-3T-CHO and X-T were studied. The indium-tin-oxide (ITO)/OHC-3T-CHO/electrolyte solution/ITO device exhibited reversible, clear colour change from yellow to bright bluish-green on electrochemical doping and dedoping, while ITO/OHC-3T-CHO/conducting gel/ITO device and ITO/OHC-3T-CHO/conducting filter paper/ITO device exhibited colour change from yellow to green. The ITO/XT/electrolyte solution/ITO device showed reversible, clear colour change between yellowish orange and silver-gray on electrochemical doping and dedoping. (C) 2009 Elsevier B.V. All rights reserved.
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