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:
Feb. 11, 2020
Filed:
Sep. 20, 2016
Commissariat À L'énergie Atomique ET Aux Énergies Alternatives, Paris, FR;
Ivan-Christophe Robin, Grenoble, FR;
Amélie Dussaigne, Saint Hilaire de la Cote, FR;
Pierre Ferret, Grenoble, FR;
Abstract
A light-emitting device including a substrate, three-dimensional semiconductor elements resting on the substrate, at least one shell at least partially covering the lateral walls of the semiconductor element, the shell including an active area having multiple quantum wells, and an electrode at least partially covering the shell, at least a portion of the active area being sandwiched between the electrode and the lateral walls of the semiconductor element. The active area includes an alternation of first semiconductor layers mainly including a first element and a second element and of second semiconductor layers mainly including the first element and the second element and further including a third element. In at least three of the layers, the mass concentration of the third element increases in the portion of the active layer as the distance to the substrate decreases.