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. 19, 2019
Filed:
Oct. 19, 2018
Emberion Oy, Espoo, FI;
Richard White, Huntingdon, GB;
Alexander Bessonov, Cambridge, GB;
Piers Andrew, Cambridge, GB;
Mark Allen, Cambridge, GB;
Elisabetta Spigone, Cambridge, GB;
Michael Robert Astley, Waterbeach, GB;
EMBERION OY, Espoo, FI;
Abstract
An apparatus comprises a layer of channel material, source and drain electrodes configured to enable a flow of electrical current through the channel material, and a layer of quantum dot material configured to generate electron-hole pairs on exposure to electromagnetic radiation to produce a detectable change in the electrical current indicative of one or more of the presence and magnitude of the electromagnetic radiation. The layer of quantum dot material is positioned between the channel material and a layer of conductive material. The layers of channel and conductive material have work functions such that respective built-in electric fields are created at the interfaces between the layer of quantum dot material and the channel and conductive material. The electric field at each interface acts in the same direction to promote separation of the electrons and holes of the electron-hole pairs to facilitate production of the detectable change in electrical current.