Polymer/Gold Nanoparticle Nanocomposite Light-Emitting Diodes: Enhancement of Electroluminescence Stability and Quantum Efficiency of Blue-Light-Emitting Polymers

Jong Hyeok Park; Yong Taik Lim; O. Ok Park; Jai Kyeong Kim; Jae Woong Yu; Young Chul Kim

doi:10.1021/cm0304142

Polymer/Gold Nanoparticle Nanocomposite Light-Emitting Diodes: Enhancement of Electroluminescence Stability and Quantum Efficiency of Blue-Light-Emitting Polymers

Jong Hyeok Park, Yong Taik Lim, O. Ok Park, Jai Kyeong Kim, Jae Woong Yu, Young Chul Kim

Department of Chemical and Biomolecular Engineering

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

181 Citations (Scopus)

Abstract

The potential use of polymer light-emitting diodes is ultimately limited by their low quantum efficiency as well as by their poor stability due to oxygen. We report experiments on polymer light-emitting diodes made with poly(9,9′- dioctylfluorene)/gold nanocomposites to solve these drawbacks. Blue polymer light-emitting diodes with enhanced luminescent stability were obtained by incorporating 5-10-nm gold nanoparticles as the quenchers of the triplet states of blue emitting polymer. The nanocomposite light-emitting diodes exhibited an enhanced quantum efficiency due to the roughening of the surface onto which the Al cathode is deposited and to balanced charge injection.

Original language	English
Pages (from-to)	688-692
Number of pages	5
Journal	Chemistry of Materials
Volume	16
Issue number	4
DOIs	https://doi.org/10.1021/cm0304142
Publication status	Published - 2004 Feb 24

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Materials Chemistry

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abstract = "The potential use of polymer light-emitting diodes is ultimately limited by their low quantum efficiency as well as by their poor stability due to oxygen. We report experiments on polymer light-emitting diodes made with poly(9,9′- dioctylfluorene)/gold nanocomposites to solve these drawbacks. Blue polymer light-emitting diodes with enhanced luminescent stability were obtained by incorporating 5-10-nm gold nanoparticles as the quenchers of the triplet states of blue emitting polymer. The nanocomposite light-emitting diodes exhibited an enhanced quantum efficiency due to the roughening of the surface onto which the Al cathode is deposited and to balanced charge injection.",

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AU - Lim, Yong Taik

AU - Park, O. Ok

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AU - Yu, Jae Woong

AU - Kim, Young Chul

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AB - The potential use of polymer light-emitting diodes is ultimately limited by their low quantum efficiency as well as by their poor stability due to oxygen. We report experiments on polymer light-emitting diodes made with poly(9,9′- dioctylfluorene)/gold nanocomposites to solve these drawbacks. Blue polymer light-emitting diodes with enhanced luminescent stability were obtained by incorporating 5-10-nm gold nanoparticles as the quenchers of the triplet states of blue emitting polymer. The nanocomposite light-emitting diodes exhibited an enhanced quantum efficiency due to the roughening of the surface onto which the Al cathode is deposited and to balanced charge injection.

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Polymer/Gold Nanoparticle Nanocomposite Light-Emitting Diodes: Enhancement of Electroluminescence Stability and Quantum Efficiency of Blue-Light-Emitting Polymers

Abstract

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