Author/Authors :
Katkova، نويسنده , , Marina A. and Balashova، نويسنده , , Tatyana V. and Maleev، نويسنده , , Alexander A. and Ilichev، نويسنده , , Vasilii A. and Konev، نويسنده , , Alexey N. and Fukin، نويسنده , , Georgy K. and Mitin، نويسنده , , Alexander S. and Ketkov، نويسنده , , Sergey Yu. and Bochkarev، نويسنده , , Mikhail N.، نويسنده ,
Abstract :
Efficient yellow–green electroluminescence emission at λmax = 530 nm with CIE coordinates x = 0.3913, y = 0.4947 was obtained with organic light-emitting devices based on tris(2-methyl-8-quinolinolate) scandium (1). The device with the configuration of indium tin oxide/N,N′-bis(3-methylphenyl)-N,N′-diphenylbenzidine/1/Yb exhibits current efficiency of 3.1 cd/A and power efficiency of 1.8 lm/W at a luminance of 100 cd/m2. The DFT calculations demonstrate that structural changes of the scandium complex 1 influence the electroluminescence spectrum, the better agreement with experimental data being achieved when monodentate ligands are taken into consideration.
Keywords :
Scandium complex , 2-Methyl-8-quinolinolate , Amidine , electroluminescence , Non-doped OLED , Hole-transporting , DFT calculations
