Synthesis of novel carbazole-based blue light-emitting copolymers containing (diphenylene)vinylene pendants

Woo Yeon Kim; Keun Byoung Yoon

doi:10.7317/pk.2013.37.6.736

Synthesis of novel carbazole-based blue light-emitting copolymers containing (diphenylene)vinylene pendants

Woo Yeon Kim, Keun Byoung Yoon

Kyungpook National University

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Novel carbazole based copolymers were synthesized by Suzuki coupling polymerization. (Diphenylene)vinylene and w-octyl was introduced to carbazole as pendants for reducing band gap and improving solubility, respectively. Thermal, photoluminescence and electro-luminescence of copolymers were studied for applying the emitting layer of polymer light emitting diode (PLED). Maximum UV-vis absorption and photoluminescence (PL) emission wavelength of copolymers showed 333-340 nm and 409-464 nm in solution state, respectively. The relative quantum yield using 9,10-diphe-nylanthracene as a reference was 25.8%. These copolymers exhibited high thermal stability (T_d = 350 °C) and good film forming ability. Good luminance was obtained at voltages lower than 8 V and the onset voltage was observed at 4.0 V.

Original language	English
Pages (from-to)	736-743
Number of pages	8
Journal	Polymer (Korea)
Volume	37
Issue number	6
DOIs	https://doi.org/10.7317/pk.2013.37.6.736
State	Published - Nov 2013

Keywords

Blue light-emitting
Carbazole copolymer
Diphenylene vinylene

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title = "Synthesis of novel carbazole-based blue light-emitting copolymers containing (diphenylene)vinylene pendants",

abstract = "Novel carbazole based copolymers were synthesized by Suzuki coupling polymerization. (Diphenylene)vinylene and w-octyl was introduced to carbazole as pendants for reducing band gap and improving solubility, respectively. Thermal, photoluminescence and electro-luminescence of copolymers were studied for applying the emitting layer of polymer light emitting diode (PLED). Maximum UV-vis absorption and photoluminescence (PL) emission wavelength of copolymers showed 333-340 nm and 409-464 nm in solution state, respectively. The relative quantum yield using 9,10-diphe-nylanthracene as a reference was 25.8%. These copolymers exhibited high thermal stability (Td = 350 °C) and good film forming ability. Good luminance was obtained at voltages lower than 8 V and the onset voltage was observed at 4.0 V.",

keywords = "Blue light-emitting, Carbazole copolymer, Diphenylene vinylene",

author = "Kim, {Woo Yeon} and Yoon, {Keun Byoung}",

year = "2013",

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T1 - Synthesis of novel carbazole-based blue light-emitting copolymers containing (diphenylene)vinylene pendants

AU - Kim, Woo Yeon

AU - Yoon, Keun Byoung

PY - 2013/11

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N2 - Novel carbazole based copolymers were synthesized by Suzuki coupling polymerization. (Diphenylene)vinylene and w-octyl was introduced to carbazole as pendants for reducing band gap and improving solubility, respectively. Thermal, photoluminescence and electro-luminescence of copolymers were studied for applying the emitting layer of polymer light emitting diode (PLED). Maximum UV-vis absorption and photoluminescence (PL) emission wavelength of copolymers showed 333-340 nm and 409-464 nm in solution state, respectively. The relative quantum yield using 9,10-diphe-nylanthracene as a reference was 25.8%. These copolymers exhibited high thermal stability (Td = 350 °C) and good film forming ability. Good luminance was obtained at voltages lower than 8 V and the onset voltage was observed at 4.0 V.

AB - Novel carbazole based copolymers were synthesized by Suzuki coupling polymerization. (Diphenylene)vinylene and w-octyl was introduced to carbazole as pendants for reducing band gap and improving solubility, respectively. Thermal, photoluminescence and electro-luminescence of copolymers were studied for applying the emitting layer of polymer light emitting diode (PLED). Maximum UV-vis absorption and photoluminescence (PL) emission wavelength of copolymers showed 333-340 nm and 409-464 nm in solution state, respectively. The relative quantum yield using 9,10-diphe-nylanthracene as a reference was 25.8%. These copolymers exhibited high thermal stability (Td = 350 °C) and good film forming ability. Good luminance was obtained at voltages lower than 8 V and the onset voltage was observed at 4.0 V.

KW - Blue light-emitting

KW - Carbazole copolymer

KW - Diphenylene vinylene

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JO - Polymer (Korea)

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Synthesis of novel carbazole-based blue light-emitting copolymers containing (diphenylene)vinylene pendants

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Keywords

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