The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2019
Filed:
Sep. 12, 2016
Applicant:
Nokia Technologies Oy, Espoo, FI;
Inventors:
Alexander Bessonov, Cambridge, GB;
Adam Robinson, Cambridge, GB;
Darryl Cotton, Cambridge, GB;
Richard White, Cambridge, GB;
Assignee:
NOKIA TECHNOLOGIES OY, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/02 (2006.01); H01L 31/11 (2006.01); H01L 31/18 (2006.01); H01L 31/028 (2006.01); H01L 31/0236 (2006.01); H01L 31/0352 (2006.01); H01L 31/112 (2006.01);
U.S. Cl.
CPC ...
H01L 31/028 (2013.01); H01L 31/02363 (2013.01); H01L 31/02366 (2013.01); H01L 31/035209 (2013.01); H01L 31/035218 (2013.01); H01L 31/112 (2013.01); H01L 31/18 (2013.01); Y02E 10/547 (2013.01);
Abstract
A photodetector has a two dimensional conductive channel and a quantum dot layer configured to generate charge on exposure to incident electromagnetic radiation. The surface texture of the quantum dot layer has texturing to provide surface roughness which increases the amount of electromagnetic radiation absorbed in the quantum dot layer in comparison to a photodetector having a flat (non-textured) incident electromagnetic radiation surface.