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Title: Europium-activated phosphors containing oxides of rare-earth and group-IIIB metals and method of making the same

Abstract

Europium-activated phosphors comprise oxides of at least a rare-earth metal selected from the group consisting of gadolinium, yttrium, lanthanum, and combinations thereof and at least a Group-IIIB metal selected from the group consisting of aluminum, gallium, indium, and combinations thereof. A method for making such phosphors comprises adding at least a halide of at least one of the selected Group-IIIB metals in a starting mixture. The method further comprises firing the starting mixture in an oxygen-containing atmosphere. The phosphors produced by such a method exhibit improved absorption in the UV wavelength range and improved quantum efficiency.

Inventors:
; ; ;
Publication Date:
Research Org.:
General Electric Company, Niskayuna, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174940
Patent Number(s):
6,761,837
Application Number:
10/064,121
Assignee:
General Electric Company (Niskayuna, NY) OSTI
DOE Contract Number:  
FC26-99FT40632
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Comanzo, Holly Ann, Setlur, Anant Achyut, Srivastava, Alok Mani, and Manivannan, Venkatesan. Europium-activated phosphors containing oxides of rare-earth and group-IIIB metals and method of making the same. United States: N. p., 2004. Web.
Comanzo, Holly Ann, Setlur, Anant Achyut, Srivastava, Alok Mani, & Manivannan, Venkatesan. Europium-activated phosphors containing oxides of rare-earth and group-IIIB metals and method of making the same. United States.
Comanzo, Holly Ann, Setlur, Anant Achyut, Srivastava, Alok Mani, and Manivannan, Venkatesan. Tue . "Europium-activated phosphors containing oxides of rare-earth and group-IIIB metals and method of making the same". United States. https://www.osti.gov/servlets/purl/1174940.
@article{osti_1174940,
title = {Europium-activated phosphors containing oxides of rare-earth and group-IIIB metals and method of making the same},
author = {Comanzo, Holly Ann and Setlur, Anant Achyut and Srivastava, Alok Mani and Manivannan, Venkatesan},
abstractNote = {Europium-activated phosphors comprise oxides of at least a rare-earth metal selected from the group consisting of gadolinium, yttrium, lanthanum, and combinations thereof and at least a Group-IIIB metal selected from the group consisting of aluminum, gallium, indium, and combinations thereof. A method for making such phosphors comprises adding at least a halide of at least one of the selected Group-IIIB metals in a starting mixture. The method further comprises firing the starting mixture in an oxygen-containing atmosphere. The phosphors produced by such a method exhibit improved absorption in the UV wavelength range and improved quantum efficiency.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 13 00:00:00 EDT 2004},
month = {Tue Jul 13 00:00:00 EDT 2004}
}

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