A phosphorescent electroluminescent device comprising a light-emitting layer containing a host material and a phosphorescent light-emitting material wherein the host material comprises a boron compound containing at least one boron-nitrogen bond. Such devices provide useful light emissions.

 
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< Light emitting device and manufacturing method therefor

< Coatings with low permeation of gases and vapors

> Organic element for electroluminescent devices

> Photoactive lanthanide complexes with phosphine oxides, phosphine oxides-sulfides, pyridine N-oxides, and phosphine oxide-pyridine N-oxides, and devices made with such complexes
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