Sharp Kabushiki Kaisha Corporation

Tetramer Technologies, LLC

Michael Alan Schreuder

Peter Neil Taylor

Bogdan Z Zdyrko

Jonathan Heffernan

Stewart Edward Hooper

Zachary J Hunt

Jeffrey R DiMaio

Stephen D Hudson

Yanina Breakiron

Baris Kokuoz

Alastair James Daniel Grundy

The present disclosure pertains to a tamper indicating security device, which indicates unauthorized duplication of and/or access to a variety of secure documents, technologies, products, and/or protected volumes.

Frangible security device

A method of producing nitride nanoparticles comprises reacting at least one organometallic compound, for example an alkyl metal, with at least one source of nitrogen. The reaction may involve one or more liquid phase organometallic compounds, or may involve one or more liquid phase organometallic compounds dissolved in a solvent or solvent mixture. The reaction constituents may be heated to a desired reaction temperature (for example in the range 40&#xb0; C. to 300&#xb0; C.).

Method of synthesising nitride nanocrystals

A population of light-emissive nitride nanoparticles has a photoluminescence quantum yield of at least 10% and an emission spectrum having a full width at half maximum intensity (FWHM) of less than 100 nm. One suitable method of producing light-emissive nitride nanoparticles comprises a first stage of heating a reaction mixture consisting essentially of nanoparticle precursors in a solvent, the nanoparticle precursors including at least one metal-containing precursor and at least one first nitrogen-containing precursor, and maintaining the reaction mixture at a temperature to seed nanoparticle growth. It further comprises a second stage of adding at least one second nitrogen-containing precursor to the reaction mixture thereby to promote nanoparticle growth.

Preparation of nanoparticles with narrow luminescence

Growing community of inventors

Anderson, SC, United States of America

Michael Alan Schreuder