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Phosphorescent white organic light-emitting diodes (WOLEDs) based on single doped platinum(II) [1,3-difluoro-4,6-di(2-pyridinyl)benzene] chloride (Pt-4) emission layers were investigated in this paper. The devices exhibited electroluminescence spectra composed of bluish (λ max =480nm) and reddish (λ max =660nm) emission bands, which corresponding to monomer and excimer emission originated...
Seven compounds with pyridine as the backbone modified by carbazole moiety, bromine atom and fluorine atom were synthesized. Compounds 1, 2, 3 with bromo substitution at the 2-position and carbazole modification at the 5-position of pyridine emit not only a sharp blue singlet fluorescence but also a wide banded excimer-based orange emission. The two colors coming from a single molecule can be used...
White Organic light emitting devices (WOLEDs) based on excimer emission have been fabricated, using only a platinum [1,3-difluoro- 4,6-di(2-pyridinyl)benzene] chloride(Pt-4) doped in 1,3-bis(9-carbazolyl)benzene (mCP), a single emissive layer to obtain white emission which comprises red and blue light-emitting spectra. The maximum current-and power- efficiency values of white device are 11.5 cd/A...
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