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1. (WO2017156600) HIERARCHICALLY NANOSTRUCTURED NANOPARTICLES FOR WHITE LIGHT EMISSION AND USE

Pub. No.:    WO/2017/156600    International Application No.:    PCT/BR2016/000140
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Fri Dec 02 00:59:59 CET 2016
IPC: C09K 11/77
H05B 33/14
Applicants: UNIVERSIDADE ESTADUAL DE CAMPINAS - UNICAMP
Inventors: MAZALI, Italo Odone
DE OLIVEIRA, Cristine Santos
SIGOLI, Fernando Aparecido
Title: HIERARCHICALLY NANOSTRUCTURED NANOPARTICLES FOR WHITE LIGHT EMISSION AND USE
Abstract:
The present invention has applications in the field of chemistry, more specifically in the field of illumination, and relates to a nanostructured nanoparticle for emitting white light. The nanoparticles according to the present invention have a small size and are nanostructured to prevent the transfer of energy between the emitting ions, thus preventing interference with the performance of the emitter. In addition, the nanoparticles are protected from the outside environment, exhibit high stability and crystal integrity. Unlike most commercially available LEDs and white lamps, which produce blueish or "cold" white, the nanoparticles according to the present invention emit pure white light, situated in the centre of the CIE diagram, or yellowish white light similar to sun light.