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Title: Fluorescent and cathodoluminescent phosphors structurally related to sodalite

Abstract

Blue, quantum-confined phosphors are disclosed for field-emission displays made by reducing metal (M) sulfoaluminates at high temperature. This yields phases of the type M{sub 4}(AlO{sub 2}){sub 6}S. Bulk sulfide contaminant mixed with the reduced sulfoaluminate phase is removed by treating it with a chelating agent in nonaqueous solution. A photometric cathodoluminescence efficiency of 9 lumen/watt at 1,000 V for Sr{sub 3}PbS(AlO{sub 2}){sub 6} is observed. Undoped Sr{sub 4}S(AlO){sub 6} displays 5 lumen/watt at 1,000 V, with excellent blue chromatic saturation. 2 figs.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
672628
Patent Number(s):
5814245
Application Number:
PAN: 8-827,146
Assignee:
Sandia Corp., Albuquerque, NM (United States)
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 29 Sep 1998
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM SULFIDES; ALUMINIUM OXIDES; PHOSPHORS; CHEMICAL PREPARATION; CATHODOLUMINESCENCE; QUANTUM EFFICIENCY; STRONTIUM SULFIDES; LEAD SULFIDES

Citation Formats

Phillips, M L.F., and Shea, L E. Fluorescent and cathodoluminescent phosphors structurally related to sodalite. United States: N. p., 1998. Web.
Phillips, M L.F., & Shea, L E. Fluorescent and cathodoluminescent phosphors structurally related to sodalite. United States.
Phillips, M L.F., and Shea, L E. Tue . "Fluorescent and cathodoluminescent phosphors structurally related to sodalite". United States.
@article{osti_672628,
title = {Fluorescent and cathodoluminescent phosphors structurally related to sodalite},
author = {Phillips, M L.F. and Shea, L E},
abstractNote = {Blue, quantum-confined phosphors are disclosed for field-emission displays made by reducing metal (M) sulfoaluminates at high temperature. This yields phases of the type M{sub 4}(AlO{sub 2}){sub 6}S. Bulk sulfide contaminant mixed with the reduced sulfoaluminate phase is removed by treating it with a chelating agent in nonaqueous solution. A photometric cathodoluminescence efficiency of 9 lumen/watt at 1,000 V for Sr{sub 3}PbS(AlO{sub 2}){sub 6} is observed. Undoped Sr{sub 4}S(AlO){sub 6} displays 5 lumen/watt at 1,000 V, with excellent blue chromatic saturation. 2 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {9}
}