OLED devices with improved lifetime using non-crystallizable molecular glass mixture hosts
AssigneeMolecular Glasses, Inc.
InventorMichel Frantz Molaire
Life of this patent
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Abstract
An OLED multilayer electroluminescent device includes a cathode, an anode, a light-emitting layer (LEL) disposed therebetween, and charge-transporting layers disposed between (A) the cathode and the light-emitting layer, (B) the anode and the light-emitting layer, or (C) both (A) and (B). The light-emitting layer (LEL) includes a host material and an emitter. The host material includes a high-entropy non-crystallizable molecular glass mixture, which includes hole-transporting capabilities, electron-transporting capabilities, or ambipolar capabilities. The ambipolar capabilities include hole-transporting capabilities and electron-transporting capabilities.
Claims11
An OLED multilayer electroluminescent device comprising:
- a cathode, an anode, a light-emitting layer (LEL) disposed there between, and
- charge-transporting layers disposed between (A) the cathode and the light-emitting layer,
- (B) the anode and the light-emitting layer, or (C) both (A) and (B);
- wherein:
- the light-emitting layer (LEL) comprises a host material and an emitter-dopant;
- the host material comprises a high-entropy non-crystallizable molecular glass mixture, the high-entropy non-crystallizable molecular glass mixture comprising three or more than three components, wherein the components are structural isomers and having hole-transporting capabilities, electron-transporting capabilities, or ambipolar capabilities, wherein
- the ambipolar capabilities comprises hole-transporting capabilities and electron-transporting capabilities.
Dependencies are inferred from the claim text.