Investigation of the effects of process variables on the properties of europium-doped yttrium-oxide phosphor

— The goal of this work is to synthesize Y2O3:Eu+3 of small size and high luminous efficiency using the oxalate co‐precipitation process. We find that pH, solution temperature, and calcining temperature determine particle size and morphology. Particles with the smallest mean diameter form at a pH of...

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Veröffentlicht in:	Journal of the Society for Information Display 1998-09, Vol.6 (3), p.163-166
Hauptverfasser:	Cooper, Joseph A., Paris, Henry G., Stock, Stuart R., Yang, Sen, Summers, Christopher J., Hill, David N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Display Electronics Exact sciences and technology FED phosphors Field-emission displays phosphor morphology phosphor synthesis
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container_end_page	166
container_issue	3
container_start_page	163
container_title	Journal of the Society for Information Display
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creator	Cooper, Joseph A. Paris, Henry G. Stock, Stuart R. Yang, Sen Summers, Christopher J. Hill, David N.
description	— The goal of this work is to synthesize Y2O3:Eu+3 of small size and high luminous efficiency using the oxalate co‐precipitation process. We find that pH, solution temperature, and calcining temperature determine particle size and morphology. Particles with the smallest mean diameter form at a pH of 4, solution temperature of 22°C, and a calcining temperature of 1000°C. Cubic and platelet/rod‐shaped particles precipitate at a high pH and irregularly shaped particles at a low pH. Powders with 2–3 mol% Eu produce the most efficient luminescence. Efficiency increases with calcining temperate as does mean crystallite size.
doi_str_mv	10.1889/1.1985227
format	Article
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subjects	Applied sciences Display Electronics Exact sciences and technology FED phosphors Field-emission displays phosphor morphology phosphor synthesis
title	Investigation of the effects of process variables on the properties of europium-doped yttrium-oxide phosphor
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