Combustion synthesis and luminescent properties of CaTiO3:Pr, Al persistent phosphors

Using urea as fuel and boric acid as flux material, red persistent phosphors CaTiO3: Pr, Al have been successfully synthesized by combustion method. The process lasted for less than 5min and led to the formation of voluminous white powder. The photoluminescence, crystallinity and particle morphology...

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Bibliographic Details
Published in:Journal of alloys and compounds 2007-08, Vol.441 (1-2), p.327-331
Main Authors: Yin, Shengyu, Chen, Donghua, Tang, Wanjun
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Materials synthesis
materials processing
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other solid inorganic materials
Photoluminescence
Physics
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Summary:Using urea as fuel and boric acid as flux material, red persistent phosphors CaTiO3: Pr, Al have been successfully synthesized by combustion method. The process lasted for less than 5min and led to the formation of voluminous white powder. The photoluminescence, crystallinity and particle morphology of persistent phosphors were investigated by using luminescence spectrometer, X-ray diffractometer (XRD) and transmission electron microscopy (TEM), respectively. The results showed that the boric acid was effective in improving the photoluminescence intensity of CaTiO3: Pr, Al phosphor particles and the optimum molar ratio of boric acid to calcium nitrate was about 0.4. The luminescent properties and crystallinity of phosphors increased with increasing initiating temperature.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2006.09.120