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Preparation of Red Long Afterglow Phosphorescent Material CaTiO3: Pr3+

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Abstract:

CaTiO3:Pr3+ was prepared by high temperature solid state reaction and measured by SEM, XRD, excitation and emission spectra. The samples obtained possessed orthorhombic crystal structure of CaTiO3, belonging to Pbnm space group. Excitation spectra of the samples were broad band, their peaks and shoulder peaks were located at about 335nm, 379nm respectively. Emission spectra were single narrow band, emission peaks were located at about 602nm, corresponding to emission of 1D2→3H4 of Pr3+ion. The addition of Eu3+and Dy3+ as co-activator led phosphorescent intensity to greatly enhance, the addition of AgNO3 as ion compensator made the samples material pink and vibrant.

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AICAM 2005 View Preview

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Periodical:

Advanced Materials Research (Volumes 11-12)

Pages:

217-222

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.11-12.217

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Online since:

February 2006

Authors:

Min Li, Ri Guang Jin, Ru Yang, You Fen Li, Jia Xiang Liu

Keywords:

Activator, CaTiO3:Pr3+, Preparation, Red Phosphor

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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