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US 8,941,096 B2Granted
Organic semiconductor element
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsTetsuo Tsutsui, Hiroko Yamazaki, Satoshi Seo
Life of this patent
Estimating the term…
Abstract
By introducing new concepts into a structure of a conventional organic semiconductor element and without using a conventional ultra thin film, an organic semiconductor element is provided which is more reliable and has higher yield. Further, efficiency is improved particularly in a photoelectronic device using an organic semiconductor. Between an anode and a cathode, there is provided an organic structure including alternately laminated organic thin film layer (functional organic thin film layer) realizing various functions by making an SCLC flow, and a conductive thin film layer (ohmic conductive thin film layer) imbued with a dark conductivity by doping it with an acceptor and a donor, or by the like method.
Claims28
A light emitting device comprising:
- an anode;
- a cathode comprising Ag and Mg;
- a first electroluminescent layer between the anode and the cathode;
- a second electroluminescent layer between the first electroluminescent layer and the cathode, wherein the first electroluminescent layer and the second electroluminescent layer are overlapped with each other;
- a first layer;
- and
- a second layer,
- wherein each of the first electroluminescent layer and the second electroluminescent layer comprises a light emitting layer comprising an organic material,
- wherein the cathode is capable of transmitting light from the first electroluminescent layer and the second electroluminescent layer,
- wherein the first layer is between the first electroluminescent layer and the second electroluminescent layer, and the first layer comprises an organic compound and an acceptor,
- wherein the second layer is between the first electroluminescent layer and the first layer, and the second layer comprises an n-type semiconductor, and
- wherein the first layer has a conductivity of 10−10 S/m or greater.
9 more elements
A light emitting device comprising:
- an anode;
- a cathode;
- a first electroluminescent layer between the anode and the cathode;
- a second electroluminescent layer between the first electroluminescent layer and the cathode, wherein the first electroluminescent layer and the second electroluminescent layer are overlapped with each other;
- a first layer;
- and
- a second layer,
- wherein each of the first electroluminescent layer and the second electroluminescent layer comprises a light emitting layer comprising an organic material,
- wherein at least one of the first electroluminescent layer and the second electroluminescent layer emits light from a triplet excited state,
- wherein the first layer is between the first electroluminescent layer and the second electroluminescent layer, and the first layer comprises an organic compound and an acceptor, and
- wherein the second layer is between the first electroluminescent layer and the first layer, and the second layer comprises an n-type semiconductor.
8 more elements
A light emitting device comprising:
- an anode;
- a cathode;
- a first electroluminescent layer between the anode and the cathode;
- a second electroluminescent layer between the first electroluminescent layer and the cathode, wherein the first electroluminescent layer and the second electroluminescent layer are overlapped with each other;
- and
- a layer between the first electroluminescent layer and the second electroluminescent layer, the layer comprising an organic compound doped with an acceptor,
- wherein each of the first electroluminescent layer and the second electroluminescent layer comprises a light emitting layer comprising an organic material, and
- wherein at least one of the first electroluminescent layer and the second electroluminescent layer comprises a bipolar organic compound.
5 more elements
A light emitting device comprising:
- an anode;
- a cathode;
- a first electroluminescent layer between the anode and the cathode;
- a second electroluminescent layer between the first electroluminescent layer and the cathode, wherein the first electroluminescent layer and the second electroluminescent layer are overlapped with each other;
- and
- a layer between the first electroluminescent layer and the second electroluminescent layer, the layer comprising an organic compound doped with an acceptor,
- wherein each of the first electroluminescent layer and the second electroluminescent layer comprises a light emitting layer comprising an organic material, and
- wherein at least one of the first electroluminescent layer and the second electroluminescent layer comprises a polymer.
5 more elements
A light emitting device comprising:
- an anode over a substrate;
- a cathode over the anode, the cathode comprising Ag and Mg;
- a first electroluminescent layer between the anode and the cathode;
- a second electroluminescent layer between the first electroluminescent layer and the cathode, wherein the first electroluminescent layer and the second electroluminescent layer are overlapped with each other;
- and
- a layer between the first electroluminescent layer and the second electroluminescent layer, the layer comprising an organic compound doped with an acceptor,
- wherein the cathode is capable of transmitting light from the first electroluminescent layer and the second electroluminescent layer, and
- wherein the layer has a conductivity of 10−10 S/m or greater.
5 more elements
A light emitting device comprising:
- an anode over a substrate;
- a cathode over the anode;
- a first electroluminescent layer between the anode and the cathode;
- a second electroluminescent layer between the first electroluminescent layer and the cathode, wherein the first electroluminescent layer and the second electroluminescent layer are overlapped with each other;
- and
- a layer between the first electroluminescent layer and the second electroluminescent layer, the layer comprising an organic compound doped with an acceptor,
- wherein at least one of the first electroluminescent layer and the second electroluminescent layer emits light from a triplet excited state.
4 more elements
A light emitting device comprising:
- an anode over a substrate;
- a cathode over the anode;
- a first electroluminescent layer between the anode and the cathode;
- a second electroluminescent layer between the first electroluminescent layer and the cathode, wherein the first electroluminescent layer and the second electroluminescent layer are overlapped with each other;
- and
- a layer between the first electroluminescent layer and the second electroluminescent layer, the layer comprising an organic compound doped with an acceptor,
- wherein at least one of the first electroluminescent layer and the second electroluminescent layer comprises a bipolar organic compound.
4 more elements
A light emitting device comprising:
- an anode over a substrate;
- a cathode over the anode;
- a first electroluminescent layer between the anode and the cathode;
- a second electroluminescent layer between the first electroluminescent layer and the cathode, wherein the first electroluminescent layer and the second electroluminescent layer are overlapped with each other;
- and
- a layer between the first electroluminescent layer and the second electroluminescent layer, the layer comprising an organic compound doped with an acceptor,
- wherein each of the first electroluminescent layer and the second electroluminescent layer comprises a light emitting layer comprising an organic material, and
- wherein at least one of the first electroluminescent layer and the second electroluminescent layer comprises a polymer.
5 more elements
Dependencies are inferred from the claim text.