Organic metal complex and photoelectronic device, light-emitting element and light-emitting device using the same

• US 7,771,844 B2
• Filed: 11/16/2005
• Issued: 08/10/2010
• Est. Priority Date: 12/03/2004
• Status: Expired due to Fees

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Seo, Satoshi, Inoue, Hideko, Shitagaki, Satoko
• Primary Examiner(s): YAMNITZKY, MARIE ROSE
• Application Number:
  US11/274,327
• Publication Number:
  US 20060159955A1
• Time in Patent Office: 1,728 Days
• Field of Search: None
• US Class Current: 428/690
• CPC Class Codes: C07F 15/0033 Iridium compounds
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1007 Non-condensed systems
• CPC Class Codes: C09K 2211/1029 containing one nitrogen atom as the heteroatom
• CPC Class Codes: C09K 2211/1044 containing two nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/185 of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
• CPC Class Codes: H05B 33/14 characterised by the chemical or physical composition or the arrangement of the electroluminescent material , or by the simultaneous addition of the electroluminescent material in or onto the light source
• CPC Class Codes: H10K 2101/10 Triplet emission
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays
• CPC Class Codes: H10K 85/342 comprising iridium
• CPC Class Codes: Y10S 428/917 Electroluminescent

Abstract

It is an object of the present invention to provide a substance that can emit phosphorescence. Further, it is an object of the present invention to provide a light emitting element with favorable color purity. The present invention provides an organometallic complex having a structure represented by a general formula (1). A light emitting element that can exhibit red or reddish emission of light with favorable color purity can be obtained by using the organometallic complex of the present invention as aluminescent substance. In addition, a light emitting element that can emit light efficiently can be obtained by using the organometallic complex of the present invention as a sensitizer.

Claims

1. An organometallic complex represented by a structural formula (12)

14. A photoelectronics device including the organometallic complex according to claim 1.

15. A light emitting element comprising a layer including the organometallic complex according to claim 1 between a pair of electrodes.

16. A light emitting device, in which a plurality of the light emitting elements according to claim 15 are arranged.

17. An electronic equipment using the light emitting device according to claim 16 in a display portion.

18. A light emitting element using the organometallic complex according to claim 1 as a luminescent substance.

19. A light emitting element using the organometallic complex according to claim 1 as a sensitizer of a fluorescent compound.

2. An organometallic complex represented by a structural formula (13)

20. A photoelectronics device including the organometallic complex according to claim 2.

21. A light emitting element comprising a layer including the organometallic complex according to claim 2 between a pair of electrodes.

22. A light emitting device, in which a plurality of the light emitting elements according to claim 21 are arranged.

23. An electronic equipment using the light emitting device according to claim 22 in a display portion.

24. A light emitting element using the organometallic complex according to claim 2 as a luminescent substance.

25. A light emitting element using the organometallic complex according to claim 2 as a sensitizer of a fluorescent compound.

3. An organometallic complex represented by a structural formula (14)

27. A light emitting element comprising a layer including the organometallic complex according to claim 3 between a pair of electrodes.

28. A light emitting device, in which a plurality of the light emitting elements according to claim 27 are arranged.

29. An electronic equipment using the light emitting device according to claim 28 in a display portion.

30. A light emitting element using the organometallic complex according to claim 3 as a luminescent substance.

31. A light emitting element using the organometallic complex according to claim 3 as a sensitizer of a fluorescent compound.

4. An organometallic complex represented by a structural formula (15)

32. A photoelectronics device including the organometallic complex according to claim 4.

33. A light emitting element comprising a layer including the organometallic complex according to claim 4 between a pair of electrodes.

34. A light emitting device, in which a plurality of the light emitting elements according to claim 33 are arranged.

35. An electronic equipment using the light emitting device according to claim 34 in a display portion.

36. A light emitting element using the organometallic complex according to claim 4 as a luminescent substance.

37. A light emitting element using the organometallic complex according to claim 4 as a sensitizer of a fluorescent compound.

5. An organometallic complex represented by a structural formula (16)

38. A photoelectronics device including the organometallic complex according to claim 5.

39. A light emitting element comprising a layer including the organometallic complex according to claim 5 between a pair of electrodes.

40. A light emitting device, in which a plurality of the light emitting elements according to claim 39 are arranged.

41. An electronic equipment using the light emitting device according to claim 40 in a display portion.

42. A light emitting element using the organometallic complex according to claim 5 as a luminescent substance.

43. A light emitting element using the organometallic complex according to claim 5 as a sensitizer of a fluorescent compound.

6. An organometallic complex represented by a structural formula (17)

26. A photoelectronics device including the organometallic complex according to claim 6.

44. A photoelectronics device including the organometallic complex according to claims 6.

45. A light emitting element comprising a layer including the organometallic complex according to claim 6 between a pair of electrodes.

46. A light emitting device, in which a plurality of the light emitting elements according to claim 45 are arranged.

47. An electronic equipment using the light emitting device according to claim 46 in a display portion.

48. A light emitting element using the organometallic complex according to claim 6 as a luminescent substance.

49. A light emitting element using the organometallic complex according to claim 6 as a sensitizer of a fluorescent compound.

7. An organometallic complex represented by a structural formula (10)

8. A photoelectronics device including the organometallic complex according to claim 7.

9. A light emitting element comprising a layer including the organometallic complex according to claim 7 between a pair of electrodes.

10. A light emitting device, in which a plurality of the light emitting elements according to claim 9 are arranged.

11. An electronic equipment using the light emitting device according to claim 10 in a display portion.

12. A light emitting element using the organometallic complex according to claim 7 as a luminescent substance.

13. A light emitting element using the organometallic complex according to claim 7 as a sensitizer of a fluorescent compound.