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).

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, vol. 58, pp. 223–230, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/49271.