A new processable electrochromic polymer based on an electron deficient fluorene derivative with a high coloration efficiency
ELECTROCHIMICA ACTA, cilt.58, ss.223-230, 2011 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 58
- Basım Tarihi: 2011
- Doi Numarası: 10.1016/j.electacta.2011.09.037
- Dergi Adı: ELECTROCHIMICA ACTA
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.223-230
- Anahtar Kelimeler: Donor-acceptor polymers, Fluorenone, Electrochromism, Fluorescence, LIGHT-EMITTING-DIODES, TRIFLUORIDE DIETHYL ETHERATE, SOLAR-CELLS, POLYFLUORENE DERIVATIVES, CONJUGATED COPOLYMERS, ALTERNATING FLUORENE, ANODIC-OXIDATION, LOW-BANDGAP, BLUE-GREEN, ELECTROCHEMISTRY
- Eskişehir Osmangazi Üniversitesi Adresli: Hayır
Özet
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). (C) 2011 Elsevier Ltd. All rights reserved.