Hole-transporting property of a chemically hybridized poly(vinylcarbazole)-fullerene

Jong Hyeok Park; O. Ok Park; Jungahn Kim; Jae Woong Yu; Kyeong Jai Kim; Young Chul Kim

doi:10.1016/j.cap.2003.11.066

Hole-transporting property of a chemically hybridized poly(vinylcarbazole)-fullerene

Jong Hyeok Park, O. Ok Park, Jungahn Kim, Jae Woong Yu, Kyeong Jai Kim, Young Chul Kim

Department of Chemical and Biomolecular Engineering

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

9 Citations (Scopus)

Abstract

We synthesized a star copolymer of poly(vinylcarbazole) (PVK) branched from a fullerene (C₆₀) center, and investigated its optical absorption and photoluminescence properties. The chemically hybridized PVK-C₆₀ was then employed as a hole-transporting layer of the electroluminescent device with a poly(9,9′-dihexylfluorene-2,7 -divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) (CPDHFPV) emitting layer. The ITO/PVK-C₆₀/CPDHFPV/LiF/Al device showed a strong electroluminescence quenching due to a direct contact of the PVK-C₆₀ and the CPDHFPV layers. In contrast, when an additional PVK layer was introduced between the two layers, the electroluminescence was largely enhanced. The emitted light power of the ITO/PVK-C₆₀/PVK/CPDHFPV/LiF/Al device was improved by ∼3 times compared with the device without the PVK-C₆₀ layer.

Original language	English
Pages (from-to)	659-662
Number of pages	4
Journal	Current Applied Physics
Volume	4
Issue number	6
DOIs	https://doi.org/10.1016/j.cap.2003.11.066
Publication status	Published - 2004 Nov

Bibliographical note

Funding Information:
This research was performed by the financial support of “Center for Nanostructured Materials Technology” under “21st Century Frontier R&D Program” of the Ministry of Science and Technology, Korea.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Physics and Astronomy(all)

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title = "Hole-transporting property of a chemically hybridized poly(vinylcarbazole)-fullerene",

abstract = "We synthesized a star copolymer of poly(vinylcarbazole) (PVK) branched from a fullerene (C60) center, and investigated its optical absorption and photoluminescence properties. The chemically hybridized PVK-C60 was then employed as a hole-transporting layer of the electroluminescent device with a poly(9,9′-dihexylfluorene-2,7 -divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) (CPDHFPV) emitting layer. The ITO/PVK-C60/CPDHFPV/LiF/Al device showed a strong electroluminescence quenching due to a direct contact of the PVK-C60 and the CPDHFPV layers. In contrast, when an additional PVK layer was introduced between the two layers, the electroluminescence was largely enhanced. The emitted light power of the ITO/PVK-C60/PVK/CPDHFPV/LiF/Al device was improved by ∼3 times compared with the device without the PVK-C60 layer.",

author = "Park, {Jong Hyeok} and Park, {O. Ok} and Jungahn Kim and Yu, {Jae Woong} and Kim, {Kyeong Jai} and Kim, {Young Chul}",

note = "Funding Information: This research was performed by the financial support of “Center for Nanostructured Materials Technology” under “21st Century Frontier R&D Program” of the Ministry of Science and Technology, Korea.",

year = "2004",

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doi = "10.1016/j.cap.2003.11.066",

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AU - Park, Jong Hyeok

AU - Park, O. Ok

AU - Kim, Jungahn

AU - Yu, Jae Woong

AU - Kim, Kyeong Jai

AU - Kim, Young Chul

N1 - Funding Information: This research was performed by the financial support of “Center for Nanostructured Materials Technology” under “21st Century Frontier R&D Program” of the Ministry of Science and Technology, Korea.

PY - 2004/11

Y1 - 2004/11

N2 - We synthesized a star copolymer of poly(vinylcarbazole) (PVK) branched from a fullerene (C60) center, and investigated its optical absorption and photoluminescence properties. The chemically hybridized PVK-C60 was then employed as a hole-transporting layer of the electroluminescent device with a poly(9,9′-dihexylfluorene-2,7 -divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) (CPDHFPV) emitting layer. The ITO/PVK-C60/CPDHFPV/LiF/Al device showed a strong electroluminescence quenching due to a direct contact of the PVK-C60 and the CPDHFPV layers. In contrast, when an additional PVK layer was introduced between the two layers, the electroluminescence was largely enhanced. The emitted light power of the ITO/PVK-C60/PVK/CPDHFPV/LiF/Al device was improved by ∼3 times compared with the device without the PVK-C60 layer.

AB - We synthesized a star copolymer of poly(vinylcarbazole) (PVK) branched from a fullerene (C60) center, and investigated its optical absorption and photoluminescence properties. The chemically hybridized PVK-C60 was then employed as a hole-transporting layer of the electroluminescent device with a poly(9,9′-dihexylfluorene-2,7 -divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) (CPDHFPV) emitting layer. The ITO/PVK-C60/CPDHFPV/LiF/Al device showed a strong electroluminescence quenching due to a direct contact of the PVK-C60 and the CPDHFPV layers. In contrast, when an additional PVK layer was introduced between the two layers, the electroluminescence was largely enhanced. The emitted light power of the ITO/PVK-C60/PVK/CPDHFPV/LiF/Al device was improved by ∼3 times compared with the device without the PVK-C60 layer.

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Hole-transporting property of a chemically hybridized poly(vinylcarbazole)-fullerene

Abstract

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