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67.1: Invited Paper: Dendrimers — Efficient Solution‐Processed Phosphorescent OLED Materials
Author(s) -
Namdas E. B.,
Markham J. P. J.,
Anthopoulos T. D.,
Samuel I. D. W.,
Lo S.C.,
Richards G. J.,
Frampton M. J.,
Burn P. L.
Publication year - 2005
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.2036382
Subject(s) - dendrimer , phosphorescence , oled , quenching (fluorescence) , materials science , exciton , annihilation , luminescence , optoelectronics , nanotechnology , photochemistry , fluorescence , chemistry , optics , physics , polymer chemistry , layer (electronics) , quantum mechanics
Three aspects of recent dendrimer research are reported. It is shown that highly efficient sky blue phosphorescent devices can be made (external efficiency 10.4%, 11 lm/W at 100 Cd/m 2 ), that blending dendrimers provides a simple way of colour tuning, and finally that luminescence quenching by exciton‐exciton annihilation in dendrimer films is weak and can be controlled by the dendrimer generation. These results suggest that dendrimers are very attractive solution processible materials for OLEDs.