Bright white light electroluminescent devices based on a dye-dispersed polyfluorene derivative

Joo Hyun Kim; Petra Herguth; Mun-Sik Kang; Alex K.-Y. Jen; Ya-Hsien Tseng; Ching-Fong Shu

doi:10.1063/1.1778472

Bright white light electroluminescent devices based on a dye-dispersed polyfluorene derivative

Joo Hyun Kim
, Petra Herguth
, Mun-Sik Kang
, Alex K.-Y. Jen
, Ya-Hsien Tseng
, Ching-Fong Shu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

87 Citations (Scopus)

Abstract

The efficient white light emission from double-layer light emitting diodes (LED) with green and red dyes dispersed in a blue-emitting host polymer was investigated. It was observed that the resulting white light-emitting device reached a maximum external quantum efficiency of 0.82% and a maximum brightness of 12,900 cd/m ² at 12 V. It was found that the devices showed relatively high efficiency and brightness at low applied voltages. It was also observed that the chromaticity coordinate of the device remained close to that of pure white emission at a relatively broad bias range from 6 V to 12 V.

Original language	English
Pages (from-to)	1116-1118
Journal	Applied Physics Letters
Volume	85
Issue number	7
DOIs	https://doi.org/10.1063/1.1778472
Publication status	Published - 16 Aug 2004
Externally published	Yes

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title = "Bright white light electroluminescent devices based on a dye-dispersed polyfluorene derivative",

abstract = "The efficient white light emission from double-layer light emitting diodes (LED) with green and red dyes dispersed in a blue-emitting host polymer was investigated. It was observed that the resulting white light-emitting device reached a maximum external quantum efficiency of 0.82\% and a maximum brightness of 12,900 cd/m 2 at 12 V. It was found that the devices showed relatively high efficiency and brightness at low applied voltages. It was also observed that the chromaticity coordinate of the device remained close to that of pure white emission at a relatively broad bias range from 6 V to 12 V.",

author = "Kim, \{Joo Hyun\} and Petra Herguth and Mun-Sik Kang and Jen, \{Alex K.-Y.\} and Ya-Hsien Tseng and Ching-Fong Shu",

year = "2004",

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doi = "10.1063/1.1778472",

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volume = "85",

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journal = "Applied Physics Letters",

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T1 - Bright white light electroluminescent devices based on a dye-dispersed polyfluorene derivative

AU - Kim, Joo Hyun

AU - Herguth, Petra

AU - Kang, Mun-Sik

AU - Jen, Alex K.-Y.

AU - Tseng, Ya-Hsien

AU - Shu, Ching-Fong

PY - 2004/8/16

Y1 - 2004/8/16

N2 - The efficient white light emission from double-layer light emitting diodes (LED) with green and red dyes dispersed in a blue-emitting host polymer was investigated. It was observed that the resulting white light-emitting device reached a maximum external quantum efficiency of 0.82% and a maximum brightness of 12,900 cd/m 2 at 12 V. It was found that the devices showed relatively high efficiency and brightness at low applied voltages. It was also observed that the chromaticity coordinate of the device remained close to that of pure white emission at a relatively broad bias range from 6 V to 12 V.

AB - The efficient white light emission from double-layer light emitting diodes (LED) with green and red dyes dispersed in a blue-emitting host polymer was investigated. It was observed that the resulting white light-emitting device reached a maximum external quantum efficiency of 0.82% and a maximum brightness of 12,900 cd/m 2 at 12 V. It was found that the devices showed relatively high efficiency and brightness at low applied voltages. It was also observed that the chromaticity coordinate of the device remained close to that of pure white emission at a relatively broad bias range from 6 V to 12 V.

UR - https://www.scopus.com/pages/publications/4444237408

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-4444237408&origin=recordpage

U2 - 10.1063/1.1778472

DO - 10.1063/1.1778472

M3 - RGC 21 - Publication in refereed journal

SN - 0003-6951

VL - 85

SP - 1116

EP - 1118

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 7

ER -

Bright white light electroluminescent devices based on a dye-dispersed polyfluorene derivative

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