Patent · US Active

Germanate luminescence material and its preparation

US8591768B2 · kind B2 · utility

1Cited by

1References

6Claims

0Family size

Assignee

OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD. · CN

Inventors

Mingjie Zhou · Nanhu, CN
Wenbo Ma · Tangxia, CN
Zhaopu Shi · Nanhu, CN

Key dates

Filing date	Mar 18, 2009
Grant date	Nov 26, 2013
Priority date	—
Expiry date	Mar 18, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K11/7775
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A kind of germanate luminescence material and its preparation. The germanate luminescence material is a compound of following formula: (Y1-xLnx)2GeO5, or Y in the said formula is partly or entirely substituted by at least one of Gd, Lu, Sc and La, and x is 0<x≦0.3, and Ln is one of Ce, Tm, Ho, Sm, Tb, Eu and Dy. The preparation is grinding the raw material, and then sintering at 1300-1500° C. for 6-24 h, and cooling the sintered product to room temperature, and obtaining the germanate luminescence material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.