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:
Apr. 08, 2025
Filed:
Feb. 01, 2022
Lynred, Palaiseau, FR;
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
LYNRED, Palaiseau, FR;
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris, FR;
Abstract
A device for detecting infrared radiation, includes at least one pixel having an axis in a direction Z, the pixel comprising a first absorbent planar structure comprising at least one semiconductor layer. The composition of the materials used to produce the at least one layer of the first absorbent planar structure is chosen such that: the first absorbent planar structure has an effective valence band formed by a plurality of energy levels. Each energy level is occupied by one of: a first type of positive charge carrier, called heavy holes, having a first effective mass; or a second type of positive charge carrier, called light holes, having a second effective mass strictly less than the first effective mass. The maximum energy level of the effective valence band is occupied by light holes along the axis of the pixel.