Synthesis, structures, and electroluminescent properties of scandium N,O-chelated complexes toward near-white organic light-emitting diodes.
Three members of a new class of electroluminescent, neutral, and monomeric scandium N,O-chelate complexes, namely, Sc(III)-tris-2-(2-benzoimidazol-2-yl)phenolate (1), Sc(III)-tris-2-(2-benzoxyazol-2-yl)phenolate (2), and Sc(III)-tris-2-(2-benzothiazol-2-yl)phenolate (3), have been prepared and X-ray characterized. DFT calculations have been performed. In contrast to the most frequently applied dual or multiple dopants in multilayer white OLED devices, all our simpler devices with the configuration of indium tin oxide/N,N'-bis(3-methylphenyl)-N,N'-diphenylbenzidine/neat scandium complex/Yb exhibit close to near-white emission with a blue hue (CIE(x,y) = 0.2147, 0.2379) in the case of 1, a cyan hue (0.2702, 0.3524) in the case of 2, and a yellowish hue (0.3468; 0.4284) in the case of 3.
Katkova
Marina A
MA
G.A. Razuvaev Institute of Organometallic Chemistry of RAS, Tropinina 49, Nizhny Novgorod, 603950, Russia.
Balashova
Tatyana V
TV
Ilichev
Vasilii A
VA
Konev
Alexey N
AN
Isachenkov
Nikolai A
NA
Fukin
Georgy K
GK
Ketkov
Sergey Yu
SY
Bochkarev
Mikhail N
MN
D002614:Chelating Agents / Q000138:chemical synthesis* / Q000737:chemistry*; D003198:Computer Simulation; D018360:Crystallography, X-Ray; D004563:Electrochemistry; D008027:Light; D049449:Luminescence; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D012538:Scandium / Q000737:chemistry*
D002614:Chelating Agents; D009942:Organometallic Compounds; D012538:Scandium