Electroluminescence in alternating copolymers with the acetylene unit

Authors
Kim, DYHong, JMKim, JKCho, HNKim, CY
Issue Date
1999-08
Publisher
WILEY-V C H VERLAG GMBH
Citation
MACROMOLECULAR SYMPOSIA, v.143, pp.221 - 230
Abstract
2,7-diethynyl-9,9'-di-n-hexylfluorene and 2,7-dibromo-9,9'-di-n-hexyrfluorene were alternately bonded with each other by a Heck reaction to produce poly(9,9'-di-n-hexyl-2,7-fluorenyleneethynylene). The alternating copolymer emitted blue color with the peak maximum at 475 nm on excitation either at 340, 365 or 400 nm. The principal emission maximum shifted to 425 nm on excitation at 340 nm when the polymer was blended with polyvinylcarbazole(PVK). Light-emitting diodes (LEDs) fabricated with the alternating copolymer sandwiched between indium-tin oxide glass and Al emitted a light with the peak maximum at 550 nm. The peak maximum shifted to 425 nm when the copolymer was blended with PVK with the blending ratios between 5 to 20% of the emissive copolymer.
Keywords
LIGHT-EMITTING-DIODES; CONJUGATED POLYMERS; BLUE; POLY(ALKYLFLUORENE); PHOTOLUMINESCENCE; POLYFLUORENE; COLOR; electroluminescence; copolymer; acetylene; LED
ISSN
1022-1360
URI
https://pubs.kist.re.kr/handle/201004/142031
DOI
10.1002/masy.19991430117
Appears in Collections:
KIST Article > Others
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE