ELECTROLUMINESCENT DEVICE WITH RED TRIPLET EMITTER

An organic light-emitting device contains a cathode, an anode, and having located there-between a light-emitting layer, comprising: a) a host material including an organometallic compound represented by Formula (1): wherein: R1 through R6 each independently represent hydrogen or a substituent group,...

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Bibliographische Detailangaben
Hauptverfasser:	KONDAKOVA, MARINA, EDUARDOVNA, BROWN, CHRISTOPHER, TYLER, SATHIOSATHAM, MUHUNTHAN, DEATON, JOSEPH, CHARLES, PLACE, DAVID, WILLIAM
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS CHEMISTRY DYES ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	An organic light-emitting device contains a cathode, an anode, and having located there-between a light-emitting layer, comprising: a) a host material including an organometallic compound represented by Formula (1): wherein: R1 through R6 each independently represent hydrogen or a substituent group, and L represents a substituent; and b) at least one phosphorescent light-emitting compound, with a triplet energy less than or equal to the triplet energy of the host material. The device provides an improved combination of low voltage and luminance efficiency. Un dispositif électroluminescent organique contient une cathode, une anode et une couche électroluminescente intermédiaire comprenant: a) une substance hôte comprenant un composé organométallique représenté par la formule (1), dans laquelle R1 à R6 représentent, pris indépendamment, hydrogène ou groupe substitut et L représente un substitut; et b) au moins un composé électroluminescent phosphorescent, avec une énergie triple inférieure ou égale à l'énergie triple de la substance hôte. Le dispositif assure la combinaison améliorée de faible tension et de l'efficacité de la luminosité.