Excimer-based white phosphorescent organic light emitting diodes with nearly 100 % internal quantum efficiency

Evan L. Williams; Kirsi Haavisto; Jian Li; Ghassan E. Jabbour

doi:10.1002/adma.200602174

Excimer-based white phosphorescent organic light emitting diodes with nearly 100 % internal quantum efficiency

Evan L. Williams, Kirsi Haavisto, Jian Li, Ghassan E. Jabbour

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

526 Scopus citations

Abstract

A modified host material, 2,6-bis(N-carbazolyl)pyridine, (26mCPy), which assisted in enhancing device performance, allowing for the creation of an efficient white organic light emitting diode (OLED) is reported. The basic principle for generating white light from an OLED involves combining light output from multiple emission centers. Devices were fabricated on indium tin oxide (ITO) coated glass substrates. PEDOT-PSS was filtered through a 0.45 μm filter and spin-coated on the substrate. The high quantum efficiency suggested phosphor excimer-based emission to be an efficient process. The benefits of this host are thought to be a more balanced ratio of electron and hole carriers in the emissive region or enhanced charge transfer to the dopant.

Original language	English (US)
Pages (from-to)	197-202
Number of pages	6
Journal	Advanced Materials
Volume	19
Issue number	2
DOIs	https://doi.org/10.1002/adma.200602174
State	Published - Jan 20 2007

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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title = "Excimer-based white phosphorescent organic light emitting diodes with nearly 100 % internal quantum efficiency",

abstract = "A modified host material, 2,6-bis(N-carbazolyl)pyridine, (26mCPy), which assisted in enhancing device performance, allowing for the creation of an efficient white organic light emitting diode (OLED) is reported. The basic principle for generating white light from an OLED involves combining light output from multiple emission centers. Devices were fabricated on indium tin oxide (ITO) coated glass substrates. PEDOT-PSS was filtered through a 0.45 μm filter and spin-coated on the substrate. The high quantum efficiency suggested phosphor excimer-based emission to be an efficient process. The benefits of this host are thought to be a more balanced ratio of electron and hole carriers in the emissive region or enhanced charge transfer to the dopant.",

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AU - Williams, Evan L.

AU - Haavisto, Kirsi

AU - Li, Jian

AU - Jabbour, Ghassan E.

PY - 2007/1/20

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N2 - A modified host material, 2,6-bis(N-carbazolyl)pyridine, (26mCPy), which assisted in enhancing device performance, allowing for the creation of an efficient white organic light emitting diode (OLED) is reported. The basic principle for generating white light from an OLED involves combining light output from multiple emission centers. Devices were fabricated on indium tin oxide (ITO) coated glass substrates. PEDOT-PSS was filtered through a 0.45 μm filter and spin-coated on the substrate. The high quantum efficiency suggested phosphor excimer-based emission to be an efficient process. The benefits of this host are thought to be a more balanced ratio of electron and hole carriers in the emissive region or enhanced charge transfer to the dopant.

AB - A modified host material, 2,6-bis(N-carbazolyl)pyridine, (26mCPy), which assisted in enhancing device performance, allowing for the creation of an efficient white organic light emitting diode (OLED) is reported. The basic principle for generating white light from an OLED involves combining light output from multiple emission centers. Devices were fabricated on indium tin oxide (ITO) coated glass substrates. PEDOT-PSS was filtered through a 0.45 μm filter and spin-coated on the substrate. The high quantum efficiency suggested phosphor excimer-based emission to be an efficient process. The benefits of this host are thought to be a more balanced ratio of electron and hole carriers in the emissive region or enhanced charge transfer to the dopant.

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Excimer-based white phosphorescent organic light emitting diodes with nearly 100 % internal quantum efficiency

Abstract

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