Phosphor process for producing a phosphor and optoelectronic device

US11932791B2 · kind B2 · utility

Assignee

• OSRAM Opto Semiconductors GmbH · DE

Inventors

• Simon Peschke · Aßling, DE
• Stefan Lange · Shepperton, GB

Key dates

• Filing date: Feb 14, 2020
• Grant date: Mar 19, 2024
• Expiry date: Apr 17, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2002/77
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A phosphor having the general formula EA7A2T1t1T2t2 T3t3NnOo:RE. EA is selected from the group of divalent elements. A is selected from the group of monovalent elements. T1 is selected from the group of trivalent elements. T2 is selected from the group of tetravalent elements. T3 is selected from the group of pentavalent elements. RE is an activator element. 16+3 t1+4 t2+5 t3−3n−2 o=0. t1+t2+t3=5; n+o=16; 0≤t1≤4; 0≤t2≤5; 0≤t3≤5; 0≤n≤9; 7≤o≤16.