Preparation of Sr2SiO4:Eu3+ phosphors by microwave-assisted sintering and their luminescent properties

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Preparation of Sr2SiO4:Eu3+ phosphors by microwave-assisted sintering and their luminescent properties
出版類型SCI(Sciences Citation Index)
出版年度2012
AuthorsRu-Yuan Yang, 陳皇宇, Min Hang Weng 翁敏航, Shoou-Jinn Chang 張守進, & Ru-Yuan Yang 楊茹媛
開始頁125
頁數5
出版日期2012 / 6
其他編號0000
中文摘要

An Eu3+ activated strontium silicate phosphor was synthesized using a microwave-assisted sintering with a flux NH4Cl. X-ray powder diffraction analysis confirmed the formation of pure Sr2SiO4 phase without second phase or phases of starting materials as Sr1.9SiO4:Eu3+0.1 powders sintered at various temperatures in microwave furnace for 1 h. Scanning electron microscopy showed smaller particle size and more uniform grain size distributions are obtained by microwave-assisted sintering. In the PL studies, the excitation spectrum of Sr1.9SiO4:Eu3+0.1 phosphors exhibited a broad band in the UV region centered at about 270 nm which was consistent with the absorption spectra. Both microwave sintered and conventionally sintered powders emitted a maximum luminescence centered at 617 nm under excitation of 395 nm, with similar luminescent intensity. The results showed that microwave processing has the potential to decrease the sintering time and required energy input for the production of Sr1.9SiO4:Eu3+ 0.1 phosphors without degrading photoluminescence.

期刊名稱Ceramics International
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