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:
Sep. 04, 2018
Filed:
Jan. 16, 2015
The American University IN Cairo, New York, NY (US);
Basamat S. Shaheen, Cairo, EG;
Nageh K. Allam, New Cairo, EG;
The American University in Cairo, New York, NY (US);
Abstract
A solar energy conversion niobium oxynitride microcone and a method of the synthesis and use of niobium oxynitride microcones are provided. The material is useful for solar energy conversion, optics, photocatalysis, electrochromics, sensors and biomedical applications. According to one embodiment, Nb205 microcones are formed by anodization of (1M NaF and 1 wt. % HF electrolyte −40 V −20 min), they were annealed in ammonia gas to allow their doping with nitrogen. Nitridation of the micro cones shifts the absorption edge from 450 nm for the oxide form to 777 nm for the oxynitride form.