Authors: Seung Kwon Hong Hye Young Koo You Na Ko Jung Hyun Kim Jang Heui Yi Yun Chan Kang
Publish Date: 2009/11/06
Volume: 98, Issue: 3, Pages: 671-677
Abstract
Eudoped B2O3–ZnO–PbO glass phosphor powders with spherical shape and fine size were directly prepared by spray pyrolysis The glass phosphor powders prepared at a temperature of 1100°C had broad XRD peak at around 28° One glass phosphor powder was formed from one droplet at the preparation temperature range from 900 to 1100°C The mean size of the glass phosphor powders was 075 μm The glass transition temperature T g of the glass phosphor powders prepared by spray pyrolysis was 3785°C The excitation spectrum of the glass phosphor powders prepared at the optimum preparation temperature of 1100°C had bands at 362 381 392 463 525 and 532 nm The glass phosphor powders had emission spectra with bands at 579 614 and 653 nm The glass phosphor powders with doping concentration of Eu of 7 wt had the maximum photoluminescence intensity The glass phosphor layer formed from the glass phosphor powders had high transparencies above 90
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