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1. (WO2017153226) METHOD FOR PRODUCING LUMINESCENT PARTICLES WITH A PROTECTIVE LAYER AND LUMINESCENT PARTICLES HAVING A PROTECTIVE LAYER

Pub. No.:    WO/2017/153226    International Application No.:    PCT/EP2017/054791
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Thu Mar 02 00:59:59 CET 2017
IPC: C23C 16/455
C09K 11/02
C09K 11/08
Applicants: OSRAM OPTO SEMICONDUCTORS GMBH
Inventors: TRAGL, Sonja
FIEDLER, Tim
JERMANN, Frank
Title: METHOD FOR PRODUCING LUMINESCENT PARTICLES WITH A PROTECTIVE LAYER AND LUMINESCENT PARTICLES HAVING A PROTECTIVE LAYER
Abstract:
The invention relates to a method for producing luminescent particles having at least a first protective layer. This method comprises the method steps: A) providing luminescent particles, D) applying at least a first protective layer onto the surface of the luminescent particles by means of atomic layer deposition. Method step D) comprises the following method steps: D1) depositing a first starting compound by means of atomic layer deposition on the surface of the luminescent particles, D2) depositing a second starting compound by means of atomic layer deposition on the surface of the luminescent particles.