Enhanced color purity and stability from polymer/nanoporous silica nanocomposite blue light-emitting diodes

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

doi:10.1016/j.synthmet.2005.07.037

Enhanced color purity and stability from polymer/nanoporous silica nanocomposite blue light-emitting diodes

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

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article

4 Citations (Scopus)

Abstract

Photo-oxidation plays an important role in the lifetime of PLEDs fabricated from PFs. In addition, most of these PLEDs suffer from a degradation of the device under operation; the degradation is documented in the formation of a low-energy emission band at 2.2-2.3 eV, which turns the desired blue emission color into an undesired blue-green emission. With the aim of simultaneously overcoming all these drawbacks, a blue light-emitting polymer/mesoporous silica nanocomposite was prepared by blending poly(9,9-dioctylfluorene) with surface modified nanoporous silica. This nanocomposite film shows dramatically increased photo-stability and color purity.

Original language	English
Pages (from-to)	145-148
Number of pages	4
Journal	Synthetic Metals
Volume	154
Issue number	1-3
DOIs	https://doi.org/10.1016/j.synthmet.2005.07.037
Publication status	Published - 2005 Sep 22

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All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Cite this

Park, J. H., Kim, T. H., Yu, J. W., Kim, J. K., Kim, Y. C., & Park, O. O. (2005). Enhanced color purity and stability from polymer/nanoporous silica nanocomposite blue light-emitting diodes. Synthetic Metals, 154(1-3), 145-148. https://doi.org/10.1016/j.synthmet.2005.07.037

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abstract = "Photo-oxidation plays an important role in the lifetime of PLEDs fabricated from PFs. In addition, most of these PLEDs suffer from a degradation of the device under operation; the degradation is documented in the formation of a low-energy emission band at 2.2-2.3 eV, which turns the desired blue emission color into an undesired blue-green emission. With the aim of simultaneously overcoming all these drawbacks, a blue light-emitting polymer/mesoporous silica nanocomposite was prepared by blending poly(9,9-dioctylfluorene) with surface modified nanoporous silica. This nanocomposite film shows dramatically increased photo-stability and color purity.",

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10.1016/j.synthmet.2005.07.037