Effect of EDTA on controlling nucleation and morphology in the synthesis of ultrafine Y2O3 : Eu phosphors

Authors
Martinez-Rubio, MI Ireland, TG Silver, J Fern, G Gibbons, C Vecht, A
Citation
Mi. Martinez-rubio et al., Effect of EDTA on controlling nucleation and morphology in the synthesis of ultrafine Y2O3 : Eu phosphors, EL SOLID ST, 3(9), 2000, pp. 446-449
Citations number
12
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ELECTROCHEMICAL AND SOLID STATE LETTERS
ISSN journal
10990062 → ACNP
Volume
3
Issue
9
Year of publication
2000
Pages
446 - 449
Database
ISI
SICI code
1099-0062(200009)3:9<446:EOEOCN>2.0.ZU;2-A
Abstract
Methodology using ethylenediaminetetraacetic acid (EDTA) to control phospho r size with a diameter down to 1/30th and a volume of 10(-4) of commercial Y2O3:Eu powders has been developed. These powders still show luminescence a nd efficiency around 60% of the larger standard materials. Larger particles comprised of 60-120 nm crystallites show 90% of the luminescence of the st andard materials. The implications of these findings are discussed. (C) 200 0 The Electrochemical Society. S1099-0062(00)03-075-3. All rights reserved.