The VUV-VIS Spectroscopic Properties of Dy3+ Ion in Phosphors M5-2XDyXNaX(PO4)3F (M=Ca, Sr, Ba) and Their Potential Applications in Mercury-Free Lamps

The phosphors, fluorapatites M 5 (PO 4 ) 3 F (M=Ca, Sr, Ba) activated with Dy 3+ ions, were prepared by a high-temperature solid-state reaction technique. The VUV-UV excitation spectra and emission spectra under VUV/UV excitation were measured. The phosphors show broad and strong absorption near 172...

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Bibliographic Details
Published in:Spectroscopy letters 2007-03, Vol.40 (2), p.317-331
Main Authors: Liang, Hongbin, Zeng, Qu, Su, Qiang, Lin, Huihong, Tian, Zifeng, Zhang, Guobin, Fu, Yibing
Format: Article
Language:English
Subjects:
luminescence
PO
vacuum ultraviolet
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Summary:The phosphors, fluorapatites M 5 (PO 4 ) 3 F (M=Ca, Sr, Ba) activated with Dy 3+ ions, were prepared by a high-temperature solid-state reaction technique. The VUV-UV excitation spectra and emission spectra under VUV/UV excitation were measured. The phosphors show broad and strong absorption near 172 nm and intensive emission with the chromaticity coordinates entering the white light region. Hence, the phosphors may be considered as suitable candidates for Hg-free lamps.
ISSN:0038-7010
1532-2289
DOI:10.1080/00387010701247589