Organic Semiconductor Element

• US 20160218309A1
• Filed: 04/01/2016
• Published: 07/28/2016
• Est. Priority Date: 12/05/2001
• Status: Abandoned Application

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Tsutsui, Tetsuo, YAMAZAKI, Hiroko, SEO, Satoshi
• Application Number:
  US15/088,642
• Publication Number:
  US 20160218309A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B82Y 10/00 Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
• CPC Class Codes: H10K 10/701 Organic molecular electronic devices
• CPC Class Codes: H10K 2101/10 Triplet emission
• CPC Class Codes: H10K 30/20 comprising organic-organic junctions, e.g. donor-acceptor junctions
• CPC Class Codes: H10K 30/211 comprising multiple junctions, e.g. double heterojunctions
• CPC Class Codes: H10K 30/57 comprising multiple junctions, e.g. tandem PV cells
• CPC Class Codes: H10K 39/00 Integrated devices, or assemblies of multiple devices, comprising at least one organic radiation-sensitive element covered by group H10K30/00
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 50/125 specially adapted for multicolour light emission, e.g. for emitting white light
• CPC Class Codes: H10K 50/13 comprising stacked EL layers within one EL unit
• CPC Class Codes: H10K 50/155 comprising dopants
• CPC Class Codes: H10K 50/165 comprising dopants
• CPC Class Codes: H10K 50/19 Tandem OLEDs
• CPC Class Codes: H10K 59/32 Stacked devices having two or more layers, each emitting at different wavelengths
• CPC Class Codes: H10K 85/30 Coordination compounds
• CPC Class Codes: H10K 85/311 Phthalocyanine
• CPC Class Codes: H10K 85/324 comprising aluminium, e.g. Alq3
• CPC Class Codes: H10K 85/60 Organic compounds having low molecular weight H10K85/10 - H10K85/50 take precedence
• CPC Class Codes: H10K 85/611 Charge transfer complexes
• CPC Class Codes: H10K 85/615 Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
• CPC Class Codes: H10K 85/621 : Aromatic anhydride or imide compounds, e.g. perylene tetra-carboxylic dianhydride or perylene tetracarboxylic di-imide
• CPC Class Codes: H10K 85/631 : Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
• CPC Class Codes: H10K 85/649 : Aromatic compounds comprising a hetero atom
• CPC Class Codes: H10K 85/6565 : Oxadiazole compounds
• CPC Class Codes: Y02E 10/50 : Photovoltaic [PV] energy
• CPC Class Codes: Y02E 10/549 : Organic PV cells
• CPC Class Codes: Y02P 70/50 : Manufacturing or production processes characterised by the final manufactured product

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.

Claims

1. (canceled)

2. A light-emitting device comprising:

a first electrode;

a first functional layer over the first electrode, the first functional layer including a first light-emitting material;

a thin film layer over the first functional layer, the thin film layer is a stack of a metal layer and an organic compound layer which comprises an organic compound and an acceptor;

a second functional layer over the thin film layer, the second functional layer including a second light-emitting material; and

a second electrode over the second functional layer.

3. The light-emitting device according to claim 2, wherein the metal layer is arranged to transmit visible light.

4. The light-emitting device according to claim 2, wherein the metal layer comprises Al.

5. The light-emitting device according to claim 2, wherein the organic compound is a hole-transporting material.

6. The light-emitting device according to claim 2, wherein the stack further comprises a second organic compound film which comprises an electron-transporting material and a donor.

7. The light-emitting device according to claim 2, wherein the acceptor is a Lewis acid.

8. The light-emitting device according to claim 6, wherein the donor is selected from an alkali metal and an alkali earth metal.

9. The light-emitting device according to claim 2, wherein at least one of the first light-emitting material and the second light-emitting material is a phosphorescent material.

10. The light-emitting device according to claim 2, wherein the light-emitting device is configured to emit white light.

11. A light-emitting device comprising:

a first electrode;

a first functional layer over the first electrode, the first functional layer including a first light-emitting material;

a thin film layer over the first functional layer, the thin film layer is a stack of a metal layer and an organic compound layer which comprises an organic compound and a donor;

a second functional layer over the thin film layer, the second functional layer including a second light-emitting material; and

a second electrode over the second functional layer.

12. The light-emitting device according to claim 11, wherein the metal layer is arranged to transmit visible light.

13. The light-emitting device according to claim 11, wherein the metal layer comprises Al.

14. The light-emitting device according to claim 11, wherein the donor is selected from an alkali metal and an alkali earth metal.

15. The light-emitting device according to claim 11, wherein the organic compound is an electron-transporting material.

16. The light-emitting device according to claim 11, wherein at least one of the first light-emitting material and the second light-emitting material is a phosphorescent material.

17. The light-emitting device according to claim 11, wherein the light-emitting device is configured to emit white light.

18. A light-emitting device comprising:

a first electrode;

a first functional layer over the first electrode, the first functional layer including a first light-emitting material;

a metal layer over the first functional layer, the metal layer having an island shape;

a second functional layer over the metal layer, the second functional layer including a second light-emitting material; and

a second electrode over the second functional layer.

19. The light-emitting device according to claim 18, wherein the metal layer comprises Al.

20. The light-emitting device according to claim 18, further comprising an organic compound layer on a side of the metal layer, wherein the organic compound layer comprises a hole-transporting material and an acceptor.

21. The light-emitting device according to claim 20, wherein the acceptor is a Lewis acid.

22. The light-emitting device according to claim 18, further comprising an organic compound layer on a side of the metal layer, wherein the organic compound layer comprises an electron-transporting material and a donor.

23. The light-emitting device according to claim 22, wherein the donor is selected from an alkali metal and an alkali earth metal.

24. The light-emitting device according to claim 18, wherein at least one of the first light-emitting material and the second light-emitting material is a phosphorescent material.

25. The light-emitting device according to claim 18, wherein the light-emitting device is configured to emit white light.