Highly phenyl-substituted fluorene copolymers for light-emitting diode

Seok Jin Park, Sung Hyun Jung, Jong-Man Kim, Hyun Nam Cho

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Novel fluorene copolymers with high phenyl substitution were synthesized by using Diels-Alder polymerization of diethynyl fluorene compounds and corresponding bis-cyclopentadienone monomers. The resulting polymers with high viscosity showed good solubility in common organic solvents such as THF, CHCl3, and toluene. The spectra of polymers I and II showed maximum peaks at 330 and 340 nm for optical absorption and 476 and 455 nm for photoluminescence (PL) in the solid state, respectively. The spectra from the electroluminescence (EL) device composed of ITO/PEDOT/polymers/LiF/Al appeared at two emissive peaks at 480 and 540 nm for polymer I and at 430 with shoulder peak at 530 nm for polymer II. I-V curves of polymers I and II showed turn-on voltage of 8 and 7 V, respectively.

Original languageEnglish
Pages (from-to)99-102
Number of pages4
JournalMaterials Science and Engineering C
Volume24
Issue number1-2
DOIs
StatePublished - 2004 Jan 5

Fingerprint

Light emitting diodes
copolymers
Polymers
light emitting diodes
Copolymers
polymers
Electroluminescence
Toluene
shoulders
ITO (semiconductors)
electroluminescence
Organic solvents
Light absorption
toluene
fluorene
Photoluminescence
optical absorption
Substitution reactions
solubility
polymerization

Keywords

  • Diels-Alder reaction
  • Diethynylfluorene
  • Light-emitting diode

Cite this

Park, Seok Jin ; Jung, Sung Hyun ; Kim, Jong-Man ; Cho, Hyun Nam. / Highly phenyl-substituted fluorene copolymers for light-emitting diode. In: Materials Science and Engineering C. 2004 ; Vol. 24, No. 1-2. pp. 99-102.
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Highly phenyl-substituted fluorene copolymers for light-emitting diode. / Park, Seok Jin; Jung, Sung Hyun; Kim, Jong-Man; Cho, Hyun Nam.

In: Materials Science and Engineering C, Vol. 24, No. 1-2, 05.01.2004, p. 99-102.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Highly phenyl-substituted fluorene copolymers for light-emitting diode

AU - Park, Seok Jin

AU - Jung, Sung Hyun

AU - Kim, Jong-Man

AU - Cho, Hyun Nam

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N2 - Novel fluorene copolymers with high phenyl substitution were synthesized by using Diels-Alder polymerization of diethynyl fluorene compounds and corresponding bis-cyclopentadienone monomers. The resulting polymers with high viscosity showed good solubility in common organic solvents such as THF, CHCl3, and toluene. The spectra of polymers I and II showed maximum peaks at 330 and 340 nm for optical absorption and 476 and 455 nm for photoluminescence (PL) in the solid state, respectively. The spectra from the electroluminescence (EL) device composed of ITO/PEDOT/polymers/LiF/Al appeared at two emissive peaks at 480 and 540 nm for polymer I and at 430 with shoulder peak at 530 nm for polymer II. I-V curves of polymers I and II showed turn-on voltage of 8 and 7 V, respectively.

AB - Novel fluorene copolymers with high phenyl substitution were synthesized by using Diels-Alder polymerization of diethynyl fluorene compounds and corresponding bis-cyclopentadienone monomers. The resulting polymers with high viscosity showed good solubility in common organic solvents such as THF, CHCl3, and toluene. The spectra of polymers I and II showed maximum peaks at 330 and 340 nm for optical absorption and 476 and 455 nm for photoluminescence (PL) in the solid state, respectively. The spectra from the electroluminescence (EL) device composed of ITO/PEDOT/polymers/LiF/Al appeared at two emissive peaks at 480 and 540 nm for polymer I and at 430 with shoulder peak at 530 nm for polymer II. I-V curves of polymers I and II showed turn-on voltage of 8 and 7 V, respectively.

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