Phase Composition and Luminescent Characteristics of Y2O3: Eu and Y2O2S: Eu Crystals Obtained using Borate Flux

Author

Strel´tsov, A.V. ; Torgashov, G.V. ; Sinitsyn, N.I. ; Torgashov, I.G. ; Gulyaev, Yu.V. ; Dmitrienko, V.P. ; Dmitrienko, A.O.

Author_Institution

Inst. of Radio Eng. & Electron., Russian Acad. of Sci.

fYear

0

fDate

0-0 0

Firstpage

397

Lastpage

398

Abstract

The crystalline phosphors Y₂O₃:Eu and Y₂O₂S:Eu are widely used as the red component of color cathodoluminescent displays of different purpose. Nevertheless, their chromaticity coordinates does not completely meet the requirements which are set for color displays. Along with pigmentation, the method of enhancing of Y₂O₃:Eu radiation band intensity in deep red range is known (Morozova, 2002). It lies in borate acid adding to the flux composition during synthesis and enhances the red band intensity in the light emission spectrum. However, the nature of the influence of that modification on the photo- and cathodoluminescence of crystals is not still studied well. The study of influence of treatment by H₃BO₃ under different conditions during Y₂O₃:Eu crystals synthesis on their crystalline structure, spectral characteristics and their photo- and cathodoluminescence intensity is carried out. Changes in luminescent properties of Y₂O₂S:Eu polycrystals in case of their synthesis from initial oxides which were obtained using borate flux is examined as well

Keywords

boron compounds; cathodoluminescence; colour displays; crystal structure; europium; hydrogen compounds; phosphors; photoluminescence; yttrium compounds; H₃BO₃; Y₂O₂S:Eu; Y₂O₃:Eu; borate acid; borate flux; cathodoluminescence intensity; color cathodoluminescent displays; crystalline phosphors; crystalline structure; flux composition; light emission spectrum; luminescent characteristics; luminescent properties; phase composition; photoluminescence intensity; radiation band intensity; Atomic measurements; Charge transfer; Crystallization; Crystals; Displays; Lattices; Phosphors; Photoluminescence; Pigmentation; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2006 held Jointly with 2006 IEEE International Vacuum Electron Sources., IEEE International

Conference_Location

Monterey, CA

Print_ISBN

1-4244-0108-9

Type

conf

DOI

10.1109/IVELEC.2006.1666350

Filename

1666350