Journal
ORGANIC ELECTRONICS
Volume 15, Issue 2, Pages 500-508Publisher
ELSEVIER
DOI: 10.1016/j.orgel.2013.12.003
Keywords
Polyfluorene; Electrochromism; Light emitting diode; Conjugated polymer
Funding
- Council of Higher Education in Turkey
- Middle East Technical University
- Schlumberger Foundation Faculty for the Future
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A novel blue emitting and electro-chromic conjugated copolymer based on 9,9'dioctylfluorene (F8) and spiro(fluorene- 9,9'-xanthene) (SFX) has been prepared. Optical, photophysical and electrochemical characterizations are given for the synthesized polymer; poly[spirofluorene-co-9,9'dioctylfluorene] P(F8-SFX). Switching of the corresponding polymer between yellow and purple states is demonstrated, and blue emission with Commission Internationale de L'Eclairage (CIE) coordinate at (0.19, 0.15) is obtained from PLED device. The addition of a thin polymer interlayer ((F8) (0.5)-(TFB)(0.5)) is further investigated to maintain color purity. Furthermore, all polymer electrochromic device (ECD) based on P(F8-SFX) and poly(ethylene dioxythiophene) (PEDOT) was constructed. Spectroelectrochemistry and switching ability of the device were also investigated by UV-vis spectroscopy. (C) 2013 Elsevier B.V. All rights reserved.
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