IP Library Granted Patent US 8,058,641
Granted Patent B2
US 8,058,641 · App. 12/620,602 · Granted Nov 15, 2011

Copper blend I-VII compound semiconductor light-emitting devices

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Quick Facts
Patent No.
US 8,058,641
App. No.
12/620,602
Granted
Nov 15, 2011
Kind
B2
Abstract

Implementations and techniques for semiconductor light-emitting devices including one or more copper blend I-VII compound semiconductor material barrier layers are generally disclosed.

Claims (36)

1. A semiconductor light-emitting device comprising:

a copper blend I-VII compound semiconductor light-emitting layer disposed between an n-type region and a p-type region;

a first barrier layer disposed between the n-type region and the I-VII compound semiconductor light-emitting layer; and

a second barrier layer disposed between the p-type region and the I-VII compound semiconductor light-emitting layer,

wherein at least one of the first barrier layer or the second barrier layer comprise a copper blend I-VII compound semiconductor material.

2. The device of claim 1 , wherein at least one of the first barrier layer or second barrier layer comprises a quaternary copper blend I-VII compound semiconductor material.

3. The device of claim 1 , wherein at least one of the first barrier layer or second barrier layer comprises a CulBrCl-type quaternary copper blend I-VII compound semiconductor material.

4. The device of claim 1 , wherein at least one of the first barrier layer or second barrier layer comprises a ternary copper blend I-VII compound semiconductor material.

5. The device of claim 1 , wherein at least one of the first barrier layer or second barrier layer comprises a CulCl-type copper blend I-VII compound semiconductor material.

6. The device of claim 1 , wherein the copper blend I-VII compound semiconductor material comprises CuCl, CuBr, Cul or combinations thereof.

7. The device of claim 1 , wherein the n-type region and/or the p-type region comprises an I-VII compound semiconductor.

8. The device of claim 1 , wherein the n-type region overlies a (111) surface of a Si substrate.

9. The device of claim 1 , further comprising a transparent electrode coupled to the p-type region.

10. The device of claim 1 , further comprising a metal electrode coupled to the n-type region.

11. The device of claim 1 , wherein at least one of the first barrier layer or the second barrier layer has a material composition adapted to cause a spontaneous polarization field and a piezoelectric polarization field in the copper blend I-VII compound semiconductor light-emitting layer to have opposite directions.

12. The device of claim 1 , wherein the copper blend I-VII compound semiconductor material comprises CuCl, CuBr, Cul or combinations thereof, wherein at least one of the first barrier layer or second barrier layer comprises a CulBrCl-type quaternary copper blend I-VII compound semiconductor material, wherein the n-type region and/or the p-type region comprises an I-VII compound semiconductor, wherein the n-type region overlies a (111) surface of a Si substrate, and wherein at least one of the first barrier layer or the second barrier layer has a material composition adapted to cause a spontaneous polarization field and a piezoelectric polarization field in the copper blend I-VII compound semiconductor light-emitting layer to have opposite directions.

13. A lamp comprising:

a lead frame;

a semiconductor light-emitting device mounted on the lead frame, the semiconductor light-emitting device comprising:

a copper blend I-VII compound semiconductor light-emitting layer disposed between an n-type region and a p-type region;

a first barrier layer disposed between the n-type region and the I-VII compound semiconductor light-emitting layer; and

a second barrier layer disposed between the p-type region and the I-VII compound semiconductor light-emitting layer,

wherein at least one of the first barrier layer or the second barrier layer comprise a copper blend I-VII compound semiconductor material.

14. The lamp of claim 13 , wherein at least one of the first barrier layer or second barrier layer comprises a CulBrCl-type quaternary copper blend I-VII compound semiconductor material.

15. The lamp of claim 13 , wherein at least one of the first barrier layer or second barrier layer comprises a CulCl-type copper blend I-VII compound semiconductor material.

16. The lamp of claim 13 , wherein at least one of the first barrier layer or the second barrier layer has a material composition adapted to cause a spontaneous polarization field and a piezoelectric polarization field in the copper blend I-VII compound semiconductor light-emitting layer to have opposite directions.

17. A system comprising:

a computing device capable of providing a user interface;

a display coupled in communication with the computing device, the display capable of displaying the user interface, the display including at least semiconductor light-emitting device, the semiconductor light-emitting device comprising:

a copper blend I-VII compound semiconductor light-emitting layer disposed between an n-type region and a p-type region;

a first barrier layer disposed between the n-type region and the I-VII compound semiconductor light-emitting layer; and

a second barrier layer disposed between the p-type region and the I-VII compound semiconductor light-emitting layer,

wherein at least one of the first barrier layer or the second barrier layer comprise a copper blend I-VII compound semiconductor material.

18. The system of claim 17 , wherein at least one of the first barrier layer or second barrier layer comprises a CulBrCl-type quaternary copper blend I-VII compound semiconductor material.

19. The system of claim 17 , wherein at least one of the first barrier layer or second barrier layer comprises a CulCl-type copper blend I-VII compound semiconductor material.

20. The system of claim 17 , wherein at least one of the first barrier layer or the second barrier layer has a material composition adapted to cause a spontaneous polarization field and a piezoelectric polarization field in the copper blend I-VII compound semiconductor light-emitting layer to have opposite directions.

Assignments (4)
RELEASE OF SECURITY INTEREST IN PATENTS, RECORDED ON JANUARY 29, 2019 AT REEL 048373 FRAME 0217 Recorded Sep 22, 2025
From: CRESTLINE DIRECT FINANCE, L.P., AS COLLATERAL AGENT
To: EMPIRE TECHNOLOGY DEVELOPMENT LLC
Reel/Frame 072936/0464 →
RELEASE OF SECURITY INTEREST Recorded Jul 31, 2019
From: CRESTLINE DIRECT FINANCE, L.P.
To: EMPIRE TECHNOLOGY DEVELOPMENT LLC
Reel/Frame 049924/0794 →
SECURITY INTEREST Recorded Jan 29, 2019
From: EMPIRE TECHNOLOGY DEVELOPMENT LLC
To: CRESTLINE DIRECT FINANCE, L.P.
Reel/Frame 048373/0217 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 1, 2009
From: AHN, DOYEOL
To: UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
Reel/Frame 023588/0667 →