Microstructure and photoluminescent properties Sr2SiO4 :Eu3+ phosphors with various NH4Cl flux concentrations

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Microstructure and photoluminescent properties Sr2SiO4 :Eu3+ phosphors with various NH4Cl flux concentrations
出版類型SCI(Sciences Citation Index)
出版年度2012
AuthorsRu-Yuan Yang, 陳皇宇, Ru-Yuan Yang 楊茹媛, Shoou-Jinn Chang 張守進, & Yu-Kai Yang 楊育愷
開始頁1412
頁數4
出版日期2012 / 6
其他編號0000
中文摘要

In this paper, effect of NH4Cl flux concentrations (0, 1, 2, 3 and 4 wt%) on the crystal structure, morphology and photoluminescent properties of Sr2SiO4:Eu3+ phosphors synthesized by a microwave sintering at 1200℃ for 1 h was investigated and discussed. X-ray powder diffraction analysis showed the crystal structure was not affected and the pure Sr2SiO4 phase was formed without second phase or phases of starting materials when adding with the NH4Cl flux. The SEM images indicated that increase of the NH4Cl flux enlarged the particle size of the phosphor particles. The photo-luminescence results showed the addition of 1 wt% NH4Cl flux much improved the emission intensity at λem of 617 nm as the excitation spectrum at λex of 395 nm. The decay times of Sr2SiO4:Eu3+ phosphors with different NH4Cl flux concentrations were obtained around 2.47–2.52 ms.

期刊名稱Material Research Bulletin
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