IP Library › Granted Patent US 12,364,055
Granted Patent B2
US 12,364,055 · App. 18/090,968 · Granted Jul 15, 2025

Efficient and cost-effective photonic cooler based ir filtering for photovoltaics and energy efficiency applications

Inventors: Mohammad Istiaque Hossain (Doha, QA); Brahim Aïssa (Doha, QA)
Assignee: HAMAD BIN KHALIFA UNIVERSITY
H10F77/42G02B5/208G02B5/26G02B5/282H10F77/60
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Quick Facts
Patent No.
US 12,364,055
App. No.
18/090,968
Granted
Jul 15, 2025
Kind
B2
Abstract

A filter for infrared radiation is provided as a photonic cooler coating. The filter for infrared radiation includes a first metal oxide; a second metal oxide; and a metal layer, wherein the first metal oxide layer is provided between the second metal oxide layer and the metal layer.

Claims (45)

1. An infrared radiation filter comprising:

a metal layer;

a first metal oxide layer; and

a second metal oxide layer,

wherein the first metal oxide layer is provided between the second metal oxide layer and the metal layer,

wherein the first metal oxide layer is MoO x or NiO x where x is greater than zero.

2. The infrared radiation filter according to claim 1 , wherein the second metal oxide layer is selected from the group consisting of TiO x , MoO x , and NiO x where x is greater than zero.

3. The infrared radiation filter according to claim 1 , wherein the metal layer is Ag or Al.

4. The infrared radiation filter according to claim 1 , wherein the second metal oxide layer is TiO x where x is greater than zero.

5. The infrared radiation filter according to claim 4 , wherein TiO x has a varying stoichiometry within the second metal oxide layer.

6. The infrared radiation filter according to claim 1 , wherein the metal layer is Ag, the first metal oxide layer is MoO x , and the second metal oxide layer is TiO x where x is greater than zero.

7. The infrared radiation filter according to claim 1 , wherein the metal layer is Al, the first metal oxide layer is MoO x , and the second metal oxide layer is TiO x where x is greater than zero.

8. The infrared radiation filter according to claim 1 , wherein the metal layer is Ag, the first metal oxide layer is NiO x , and the second metal oxide layer is TiO x where x is greater than zero.

9. The infrared radiation filter according to claim 1 , wherein the metal layer is Al, the first metal oxide layer is NiO x , and the second metal oxide layer is TiO x where x is greater than zero.

10. An infrared radiation filter comprising:

a metal layer;

a first metal oxide layer; and

a second metal oxide layer,

wherein the first metal oxide layer is provided between the second metal oxide layer and the metal layer,

wherein the second metal oxide layer is TiO x where x is greater than zero, and

wherein TiO x has a varying stoichiometry within the second metal oxide layer.

11. The infrared radiation filter according to claim 10 , wherein the first metal oxide layer is selected from the group consisting of TiO x , MoO x , and NiO x where x is greater than zero.

12. The infrared radiation filter according to claim 10 , wherein the metal layer is Ag or Al.

13. The infrared radiation filter according to claim 10 , wherein the metal layer is Ag and the first metal oxide layer is MoO x .

14. The infrared radiation filter according to claim 10 , wherein the metal layer is Al and the first metal oxide layer is MoO x .

15. The infrared radiation filter according to claim 10 , wherein the metal layer is Ag and the first metal oxide layer is NiO x .

16. The infrared radiation filter according to claim 10 , wherein the metal layer is Al and the first metal oxide layer is NiO x .

17. An infrared radiation filter comprising:

a metal layer;

a first metal oxide layer; and

a second metal oxide layer,

wherein the first metal oxide layer is provided between the second metal oxide layer and the metal layer,

wherein the metal layer is Ag, the first metal oxide layer is MoO x , and the second metal oxide layer is TiO x where x is greater than zero.

18. An infrared radiation filter comprising:

a metal layer;

a first metal oxide layer; and

a second metal oxide layer,

wherein the first metal oxide layer is provided between the second metal oxide layer and the metal layer,

wherein the metal layer is Al, the first metal oxide layer is MoO x , and the second metal oxide layer is TiO x where x is greater than zero.

19. An infrared radiation filter comprising:

a metal layer;

a first metal oxide layer; and

a second metal oxide layer,

wherein the first metal oxide layer is provided between the second metal oxide layer and the metal layer,

wherein the metal layer is Al, the first metal oxide layer is NiO x , and the second metal oxide layer is TiO x where x is greater than zero.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 17, 2025
From: QATAR FOUNDATION FOR EDUCATION, SCIENCE & COMMUNITY DEVELOPMENT
To: HAMAD BIN KHALIFA UNIVERSITY
Reel/Frame 069936/0656 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 30, 2023
From: HOSSAIN, MOHAMMAD ISTIAQUE; AÏSSA, BRAHIM
To: QATAR FOUNDATION FOR EDUCATION, SCIENCE AND COMMUNITY DEVELOPMENT
Reel/Frame 065390/0365 →
Continuity (2)
Provisional Application 63294652 · Dec 29, 2021
Related Publication 20230231061A1 · Jul 20, 2023
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