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P.123: Electroluminescence Properties of WOLED with a New Yellow Fluorescent Material
Author(s) -
Lee Sungnam,
Kim Htungtak,
Shin Dongmyung
Publication year - 2013
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 - 10.1002/j.2168-0159.2013.tb06517.x
Subject(s) - fluorescence , electroluminescence , oled , dopant , diode , quantum efficiency , materials science , luminance , optoelectronics , white light , luminous efficacy , analytical chemistry (journal) , doping , chemistry , optics , physics , nanotechnology , layer (electronics) , chromatography
A new yellow fluorescent material, (2Z)‐3‐[4,4“‐bis(dimethylamino)‐1,1‘:4’,1”‐terphenyl‐2‘‐yl]‐2‐phenylacrylonitrile (BDAT‐P), have been synthesized for use in organic light‐emitting diodes. Optoelectronic properties of device with the structure of ITO (180 nm) / NPB (50 nm) / MADN: PFVtPh(SYB‐41) 8 % (17 nm) / CBP (5 nm) / CBP:Ir(pq) 2 acac 8 % (3 nm) / CBP (5 nm) / MADN:BDAT‐P 8 % (3 nm) / CBP (5 nm) / MADN:SYB‐41 8 % (17 nm) / TPBi (40 nm) / Liq (2 nm) / Al (100 nm) was measured and revealed that BDAT‐P was sufficiently applicable as a dopant of one of emitting layers in white light‐emitting diodes. Maximum luminance of device was measured to be 26950 cd/m 2 . Maximum luminous and quantum efficiency were observed to be 14.22 cd/A and 6.58 %, respectively. The device emitted warm white light corresponding to Commission Internationale de I'Eclairage (CIE xy ) coordinates of (0.372, 0.424) at 11 V, (0.375, 0.417) at 12 V, (0.372, 0.409) at 13 V, (0.366, 0.401) at 14 V, and (0.360, 0.393) at 15 V, respectively.