[EN] 5-SUBSTITUTED 2-PHENYLQUINOLINE COMPLEXES MATERIALS FOR LIGHT EMITTING DIODE [FR] MATÉRIAUX À BASE DE COMPLEXES DE 2-PHÉNYLQUINOLINE SUBSTITUÉE EN POSITION 5 POUR DIODE ÉLECTROLUMINESCENTE
A composition including a first compound is disclosed. The first compound is capable of functioning as a phosphorescent emitter in an organic light emitting device at room temperature; wherein the first compound has at least one aromatic ring and at least one substituent R; wherein each of the at least one R is an organic group having at least two atoms of X; wherein each X is independently selected from the group consisting of Si, and Ge; and wherein each of the at least one R is directly bonded to one of the aromatic rings.