Organic electroluminescent device and production method of the device, and display apparatus
AssigneeCanon Kabushiki Kaisha
InventorShunsuke Shioya
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Abstract
Provided are an organic electroluminescent device having high efficiency and a long lifetime, and a production method of the device. The organic electroluminescent device includes an anode, a cathode, and a stacked body interposed between the anode and the cathode and formed by sequentially stacking at least an inorganic compound layer and an organic emission layer, in which the inorganic compound layer has a hole-transporting ability and a work function of the inorganic compound layer changes continuously in a film thickness direction of the inorganic compound layer.
Claims6
An organic electroluminescent device comprising, in sequence:
- (a) an anode;
- (b) an inorganic compound layer comprised of molybdenum oxide;
- (c) an organic emission layer;
- and
- (d) a cathode,
- wherein the ratio of oxygen atoms in the molybdenum oxide increases from the anode side to the organic emission layer side in the layer thickness direction,
- wherein the inorganic compound layer has a hole-transporting ability, and
- wherein a work function of the inorganic compound layer changes continuously in a film thickness direction of the inorganic compound layer.
Dependencies are inferred from the claim text.