Luminescence properties of poly(p-phenylenevinylene) derivatives carrying directly attached hole-transporting carbazole and electron-transporting phenyloxadiazole pendants

Yong Rae Hong, Dong Won Lee, Kyungkon Kim, Jung Il Jin, Cheol Eui Lee, Hoo Min Lee, Yongsup Park, Byung Hee Shon, Jae Kun Park

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

New poly(p-phenylenevinylene) (PPV) derivatives (polymer 1 and 2) that carry hole-transporting carbazole and electron-transporting phenyloxadiazole pendants were synthesized and their photo- and electroluminescence properties were studied. Polymer 1 is poly[2-(N-carbazolyl)-5-(2-ethylhexyloxy)-1,4- phenylenevinylene] that has both carbazole and 2-ethylhexyl pendant groups. And polymer 2 is poly[2-{4-[5-(4-i-butylphenyl)-l,3,4-oxadiazolyl]phenyl}-5-(2- ethylhexyloxy)-1,4-phenylenevinylene], which bears the 2-(4-t-butylphenyl)-5- phenyl-1,3,4-oxadiazole pendants. The optical properties of the polymer films were studied by UV-vis absorption, photoluminescence (PL) and electroluminescence (EL) spectroscopy. EL devices with the configuration of ITO/poly(3,4-ethylenedioxy-2,5-thienylene) (PEDOT) polymer/Ca/Al were constructed and the device performances were compared. Polymer 1 emits bright yellowish green light (max= 530 nm), whereas polymer 2 emits yellowish orange (λmax= 540 nm) light. The device fabricated using polymer 1 showed a low turn-on electric field of 0.31 MV/cm and the maximum luminance of 30,390 cd/m2 at 1.50 MV/cm. Polymer 2 exhibited a little poorer device performance (turn-on electric field: 0.94 MV/cm; maximum luminance: 5,720 cd/m2 at 2.74 MV/cm Maximum photometric efficiencies of the devices were 4.4 and 1.3 cd/A, respectively.

Original languageEnglish
Pages (from-to)169-175
Number of pages7
JournalMacromolecular Symposia
Volume175
DOIs
Publication statusPublished - 2001 Dec 1

Fingerprint

carbazoles
Luminescence
Polymers
luminescence
Derivatives
Electrons
polymers
Electroluminescence
electrons
electroluminescence
luminance
Luminance
Photoluminescence
Electric fields
Methyl Green
photoluminescence
carbazole
poly(4-phenylenevinylene)
electric fields
Polymer films

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics
  • Condensed Matter Physics

Cite this

Luminescence properties of poly(p-phenylenevinylene) derivatives carrying directly attached hole-transporting carbazole and electron-transporting phenyloxadiazole pendants. / Hong, Yong Rae; Lee, Dong Won; Kim, Kyungkon; Jin, Jung Il; Lee, Cheol Eui; Lee, Hoo Min; Park, Yongsup; Shon, Byung Hee; Park, Jae Kun.

In: Macromolecular Symposia, Vol. 175, 01.12.2001, p. 169-175.

Research output: Contribution to journalArticle

Hong, Yong Rae ; Lee, Dong Won ; Kim, Kyungkon ; Jin, Jung Il ; Lee, Cheol Eui ; Lee, Hoo Min ; Park, Yongsup ; Shon, Byung Hee ; Park, Jae Kun. / Luminescence properties of poly(p-phenylenevinylene) derivatives carrying directly attached hole-transporting carbazole and electron-transporting phenyloxadiazole pendants. In: Macromolecular Symposia. 2001 ; Vol. 175. pp. 169-175.
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AU - Lee, Cheol Eui

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AU - Shon, Byung Hee

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AB - New poly(p-phenylenevinylene) (PPV) derivatives (polymer 1 and 2) that carry hole-transporting carbazole and electron-transporting phenyloxadiazole pendants were synthesized and their photo- and electroluminescence properties were studied. Polymer 1 is poly[2-(N-carbazolyl)-5-(2-ethylhexyloxy)-1,4- phenylenevinylene] that has both carbazole and 2-ethylhexyl pendant groups. And polymer 2 is poly[2-{4-[5-(4-i-butylphenyl)-l,3,4-oxadiazolyl]phenyl}-5-(2- ethylhexyloxy)-1,4-phenylenevinylene], which bears the 2-(4-t-butylphenyl)-5- phenyl-1,3,4-oxadiazole pendants. The optical properties of the polymer films were studied by UV-vis absorption, photoluminescence (PL) and electroluminescence (EL) spectroscopy. EL devices with the configuration of ITO/poly(3,4-ethylenedioxy-2,5-thienylene) (PEDOT) polymer/Ca/Al were constructed and the device performances were compared. Polymer 1 emits bright yellowish green light (max= 530 nm), whereas polymer 2 emits yellowish orange (λmax= 540 nm) light. The device fabricated using polymer 1 showed a low turn-on electric field of 0.31 MV/cm and the maximum luminance of 30,390 cd/m2 at 1.50 MV/cm. Polymer 2 exhibited a little poorer device performance (turn-on electric field: 0.94 MV/cm; maximum luminance: 5,720 cd/m2 at 2.74 MV/cm Maximum photometric efficiencies of the devices were 4.4 and 1.3 cd/A, respectively.

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