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Stable green light-emission from poly[9,9-bis(4’-n-octyloxyphenyl)fluorenyl-2,7-vinylene] synthesized via the Gilch polymerization route

Cited 3 time in Web of Science Cited 3 time in Scopus
Authors
Hwang, Do-Hoon; Kang, Jong-Min; Eom, Jae-Hoon; Park, Moo-Jin; Cho, Hoon-Je; Lee, Jeong-Ik; Chu, Hye-Yong; Lee, Changhee; Jin, Sung-Ho; Shim, Hong-Ku
Issue Date
2009-03
Publisher
Elsevier
Citation
Curr. Appl. Phys. 9 (2009) 441
Keywords
Poly(arylenevinylene) derivativePhotoluminescenceElectroluminescenceLight-emitting diode
Abstract
A new fluorene-containing poly(arylenevinylene) derivative, poly[9,9-bis(4-octyloxyphenyl)fluorenyl-2,7-vinylene] (PBOPFV), was
synthesized via the Gilch polymerization route and its light-emission properties were characterized and compared with those of
poly(9,9-di-n-octylfluorenyl-2,7-vinylene) (PFV). As is the case for poly(alkylfluorene)s, PFV exhibits a long-wavelength emission that
is additional to its emission in the blue-green region after thermal annealing or the passage of current. We have successfully suppressed
this long-wavelength emission by introducing an octyloxyphenyl group at the 9-position of the fluorene group. PBOPFV produces PL
emission maxima at 478 and 510 nm and no significant changes were found in its PL emission spectrum even after thermal annealing at
150 C for 2 h. Light-emitting devices were fabricated with ITO/PEDOT:PSS/polymer/LiF/Al configurations. The EL spectrum of the
device constructed using PFV was found to undergo significant changes during device operation, whereas the EL spectrum of the device
constructed using PBOPFV was found to be stable.
ISSN
1567-1739
Language
English
URI
http://hdl.handle.net/10371/13610
DOI
https://doi.org/10.1016/j.cap.2008.04.002
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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