High power efficiency phosphorescent poly(dendrimer) OLEDs | Zendy

Jack W. Levell | Zendy; Shuyu Zhang | Zendy; WenYong Lai | Zendy; ShihChun Lo | Zendy; Paul L. Burn | Zendy; Ifor D. W. Samuel | Zendy

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High power efficiency phosphorescent poly(dendrimer) OLEDs

Author(s) -

Jack W. Levell,

Shuyu Zhang,

WenYong Lai,

ShihChun Lo,

Paul L. Burn,

Ifor D. W. Samuel

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.00a213

Subject(s) - dendrimer , chromophore , triphenylamine , phosphorescence , oled , materials science , optoelectronics , fluorescence , photochemistry , optics , nanotechnology , chemistry , polymer chemistry , layer (electronics) , physics

We show that it is possible to produce an efficient solution-processable phosphorescent poly(dendrimer) OLED with a 32 lm/W power efficiency at 100 cd/m2 without using a charge transporting host or any improvements in light extraction. This is achieved by using the dendrimer architecture to control inter-chromophore interactions. The effects of using 4,4',4″-tris(N-carbazolyl)triphenylamine (TCTA) as a charge transporting host and using a double dendron structure to further reduce inter-chromophore interactions are also reported.

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