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:
Oct. 08, 2013
Filed:
Jan. 26, 2010
Peter Neil Taylor, Oxford, GB;
Jonathan Heffernan, Oxford, GB;
Peter Neil Taylor, Oxford, GB;
Jonathan Heffernan, Oxford, GB;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
The present application provides a light-emissive nitride nanoparticle, for example a nanocrystal, having a photoluminescence quantum yield of at least 1%. This quantum yield is significantly greater than for prior nitride nanoparticles, which have been only weakly emissive and have had poor control over the size of the nanoparticles produced. The nanoparticle includes at least one capping agent provided on a surface of the nitride crystal and containing an electron-accepting group for passivating nitrogen atoms at the surface of the crystal. The invention also provides non-emissive nitride nanoparticles.