Optical detector device with patterned graphene layer and related methods
An optical detector device may include a substrate, a reflector layer carried by the substrate, and a first dielectric layer over the reflector layer. The optical detector device may include a graphene layer over the first dielectric layer and having a perforated pattern.
1. An optical detector device comprising:
a substrate;
a reflector layer carried by said substrate;
a first dielectric layer over said reflector layer;
a graphene layer over said first dielectric layer and having a perforated pattern therein;
the perforated pattern comprising an array of openings, the array of openings comprising a plurality of rows and a plurality of columns; and
a second dielectric layer over said graphene layer and covering said array of openings.
2. The optical detector device of claim 1 wherein the array of openings comprises a square array of openings.
3. The optical detector device of claim 2 wherein each of the openings is circle-shaped.
4. The optical detector device of claim 1 wherein the perforated pattern is symmetrical.
5. The optical detector device of claim 1 wherein said first dielectric layer comprises a polymer material.
6. The optical detector device of claim 1 wherein said graphene layer comprises a monolayer of graphene.
7. The optical detector device of claim 1 further comprising:
a first electrically conductive contact coupled to said second dielectric layer; and
a second electrically conductive contact coupled to said graphene layer.
8. The optical detector device of claim 1 wherein said reflector layer comprises gold material.
9. The optical detector device of claim 1 wherein said reflector layer has a thickness greater than a threshold thickness for optical opacity.
10. An optical detector device comprising:
a substrate;
a gold reflector layer carried by said substrate;
a first dielectric layer over said gold reflector layer;
a graphene layer over said first dielectric layer and having a perforated pattern defining a square array of openings;
the perforated pattern comprising an array of openings, the array of openings comprising a plurality of rows and a plurality of columns;
a second dielectric layer over said graphene layer and covering said array of openings;
a first electrically conductive contact coupled to said second dielectric layer; and
a second electrically conductive contact coupled to said graphene layer.
11. The optical detector device of claim 10 wherein each of the openings is circle-shaped.
12. The optical detector device of claim 10 wherein the perforated pattern is symmetrical.
13. The optical detector device of claim 10 wherein said first dielectric layer comprises a polymer material.
14. The optical detector device of claim 10 wherein said graphene layer comprises a monolayer of graphene.
15. The optical detector device of claim 10 wherein said gold reflector layer has a thickness greater than a threshold thickness for optical opacity.
16. An optical detector device comprising:
a substrate;
a reflector layer carried by said substrate;
a first dielectric layer over said reflector layer;
a graphene layer over said first dielectric layer and having a perforated pattern therein;
the perforated pattern comprising an array of openings; and
a second dielectric layer over said graphene layer and covering said array of openings.
17. The optical detector device of claim 16 wherein the array of openings comprises a square array of openings.
18. The optical detector device of claim 17 wherein each of the openings is circle-shaped.
19. The optical detector device of claim 16 wherein the perforated pattern is symmetrical.
20. The optical detector device of claim 1 wherein said second dielectric layer comprises an ion-gel dielectric layer.