Fabrication and electroluminescence properties of white organic light-emitting diode with a new yellow fluorescent dopant.
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. Opto-electronic 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)2acac 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 26,950 cd/m2. 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 l'Eclairage (CIExy) 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.
Sung Nam
SN
Lee
Seok Jae
SJ
Lee
Young Kwan
YK
Kim
Dong Myung
DM
Shin
D000181:Acrylonitrile / Q000031:analogs & derivatives* / Q000737:chemistry; D055664:Electrochemical Techniques; D008027:Light; D049449:Luminescence; D009682:Magnetic Resonance Spectroscopy; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013730:Terphenyl Compounds / Q000737:chemistry*
C000598556:(2Z)-3-(4,4''-bis(dimethylamino)-1,1':4',1''-terphenyl-2'-yl)-2-phenylacrylonitrile; D013730:Terphenyl Compounds; D000181:Acrylonitrile