Bright and efficient blue and green light-emitting diodes based on conjugated polymer blends

L. C. Palilis; D. G. Lidzey; M. Redecker; D. D.C. Bradley; M. Inbasekaran; E. P. Woo; W. W. Wu

doi:10.1016/S0379-6779(99)00337-9

Bright and efficient blue and green light-emitting diodes based on conjugated polymer blends

L. C. Palilis, D. G. Lidzey, M. Redecker, D. D.C. Bradley, M. Inbasekaran, E. P. Woo, W. W. Wu

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

39 Scopus citations

Abstract

We report the use of green and blue fluorene conjugated polymers doped with hole transport materials consisting of triarylamine copolymers to fabricate bright and efficient blue and green single-layer light-emitting diodes (LEDs). These blends show enhanced quantum and power efficiency, much higher brightness and current densities and lower turn on and operating voltages compared with undoped devices. Optimised blue emission devices exhibited a maximum brightness of 1550 cd/m2, a maximum external electroluminescence quantum efficiency of 0.9 cd/A or 0.4% and a maximum power efficiency of 0.3 lm/W. Optimised green emission devices showed a maximum brightness of 7400 cd/m2, a maximum external electroluminescence quantum yield of 0.9% or 2.75 cd/A and a maximum power efficiency of 0.64 lm/W at high brightness.

Original language	English (US)
Journal	Synthetic Metals
Volume	111
DOIs	https://doi.org/10.1016/S0379-6779(99)00337-9
State	Published - Jun 1 2000
Externally published	Yes

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title = "Bright and efficient blue and green light-emitting diodes based on conjugated polymer blends",

abstract = "We report the use of green and blue fluorene conjugated polymers doped with hole transport materials consisting of triarylamine copolymers to fabricate bright and efficient blue and green single-layer light-emitting diodes (LEDs). These blends show enhanced quantum and power efficiency, much higher brightness and current densities and lower turn on and operating voltages compared with undoped devices. Optimised blue emission devices exhibited a maximum brightness of 1550 cd/m2, a maximum external electroluminescence quantum efficiency of 0.9 cd/A or 0.4% and a maximum power efficiency of 0.3 lm/W. Optimised green emission devices showed a maximum brightness of 7400 cd/m2, a maximum external electroluminescence quantum yield of 0.9% or 2.75 cd/A and a maximum power efficiency of 0.64 lm/W at high brightness.",

author = "Palilis, {L. C.} and Lidzey, {D. G.} and M. Redecker and Bradley, {D. D.C.} and M. Inbasekaran and Woo, {E. P.} and Wu, {W. W.}",

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T1 - Bright and efficient blue and green light-emitting diodes based on conjugated polymer blends

AU - Palilis, L. C.

AU - Lidzey, D. G.

AU - Redecker, M.

AU - Bradley, D. D.C.

AU - Inbasekaran, M.

AU - Woo, E. P.

AU - Wu, W. W.

N1 - Generated from Scopus record by KAUST IRTS on 2019-11-27

PY - 2000/6/1

Y1 - 2000/6/1

N2 - We report the use of green and blue fluorene conjugated polymers doped with hole transport materials consisting of triarylamine copolymers to fabricate bright and efficient blue and green single-layer light-emitting diodes (LEDs). These blends show enhanced quantum and power efficiency, much higher brightness and current densities and lower turn on and operating voltages compared with undoped devices. Optimised blue emission devices exhibited a maximum brightness of 1550 cd/m2, a maximum external electroluminescence quantum efficiency of 0.9 cd/A or 0.4% and a maximum power efficiency of 0.3 lm/W. Optimised green emission devices showed a maximum brightness of 7400 cd/m2, a maximum external electroluminescence quantum yield of 0.9% or 2.75 cd/A and a maximum power efficiency of 0.64 lm/W at high brightness.

AB - We report the use of green and blue fluorene conjugated polymers doped with hole transport materials consisting of triarylamine copolymers to fabricate bright and efficient blue and green single-layer light-emitting diodes (LEDs). These blends show enhanced quantum and power efficiency, much higher brightness and current densities and lower turn on and operating voltages compared with undoped devices. Optimised blue emission devices exhibited a maximum brightness of 1550 cd/m2, a maximum external electroluminescence quantum efficiency of 0.9 cd/A or 0.4% and a maximum power efficiency of 0.3 lm/W. Optimised green emission devices showed a maximum brightness of 7400 cd/m2, a maximum external electroluminescence quantum yield of 0.9% or 2.75 cd/A and a maximum power efficiency of 0.64 lm/W at high brightness.

UR - https://linkinghub.elsevier.com/retrieve/pii/S0379677999003379

UR - http://www.scopus.com/inward/record.url?scp=0033687532&partnerID=8YFLogxK

U2 - 10.1016/S0379-6779(99)00337-9

DO - 10.1016/S0379-6779(99)00337-9

M3 - Article

SN - 0379-6779

VL - 111

JO - Synthetic Metals

JF - Synthetic Metals

ER -

Bright and efficient blue and green light-emitting diodes based on conjugated polymer blends

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