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Strongly Polarized and Efficient Blue Organic Light‐Emitting Diodes Using Monodisperse Glassy Nematic Oligo(fluorene)s
Author(s) -
Culligan S.W.,
Geng Y.,
Chen S.H.,
Klubek K.,
Vaeth K.M.,
Tang C.W.
Publication year - 2003
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200304972
Subject(s) - materials science , fluorene , chromaticity , oled , polyfluorene , optoelectronics , liquid crystal , annealing (glass) , diode , dispersity , electroluminescence , optics , layer (electronics) , polymer , polymer chemistry , nanotechnology , composite material , physics
Monodisperse oligo(fluorene)s have been successfully employed for the construction of polarized blue organic light‐emitting diodes. Uniaxial alignment is accomplished by spin‐casting oligo(fluorene)s onto a rubbed alignment layer with subsequent thermal annealing. The resultant films yield the best set of performance data ever reported in terms of emission dichroic ratio, luminance yield, and chromaticity (see Figure).