Color tunability in multilayer OLEDs based on DCM and DPVBi as emitting materials

18th International Summer School on Vacuum, Electron and Ion Technologies

Petrova, P.K.^1 ; Ivanov, P.I.^1 ; Tomova, R.L.^1

Acad. J. Malinovski Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 109, 1113 Sofia, Bulgaria^1

关键词: Benzothiazoles;    Blue emitter;    Color tunability;    Dicyanomethylene;    Electron transporting layer;    Emitting layer;    Emitting material;    Multilayer organic light emitting diodes;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/514/1/012015/pdf
DOI  :  10.1088/1742-6596/514/1/012015

来源: IOP

【 摘 要 】

We report studies on the color tunability of a novel type of multilayer organic light-emitting diodes (OLEDs) based on three emitting materials: DCM (4-(Dicyanomethylene)-2-methyl-6-[p-(dimethylamino)styryl]-4H-pyran) as a red emitter, DPVBi [4,4'-Bis(2,2-diphenylvinyl)-1,1'-biphenyl] as a blue emitter and zinc bis(2-(2-hydroxyphenyl) benzothiazole) (Zn(BTz)2) as a yellow emitter, and an electron transporting layer. We established that the positions and thicknesses of the different emitting layers determine the efficiencies, luminance and color of the light emitted by the OLEDs.