A new processable electrochromic polymer based on an electron deficient fluorene derivative with a high coloration efficiency

2011-12-30
Carbas, Buket Bezgin
Kivrak, Arif
Önal, Ahmet Muhtar
A new fluorenone based soluble polymer, namely poly(2,7-bis-(3,3-dihexyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepin-6-yI)-fluoren-9-one) (PPFP), containing propylenedioxythiophene (ProDOT) as a donor and fluorenone (FO) as an acceptor group is highlighted. Electrochemical polymerization of 2,7bis-(3,3-dihexyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepin-6-yI)-fluoren-9-one (PFP) was achieved in dichloromethane/acetonitrile mixture with 0.1 M tetrabutylammonium hexafluorophosphate via potential cycling. The polymer shows an electrochromic behavior, a color change from orange to dark blue during oxidation with a high coloration efficiency (422 cm(2)/C at 684 nm) and orange to yellow during reduction with high optical and electrochemical stability as compared to its close analogues, in addition it is found to be both p and n dopable. Furthermore, this soluble polymer exhibits fluorescent properties (the emission of orange light (578 nm) in THF solution).
ELECTROCHIMICA ACTA

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Citation Formats
B. B. Carbas, A. Kivrak, and A. M. Önal, “A new processable electrochromic polymer based on an electron deficient fluorene derivative with a high coloration efficiency,” ELECTROCHIMICA ACTA, pp. 223–230, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/49271.