Yerpude, A. N. and Dhoble, S. J. and Haranath, D. (2013) Synthesis and characterization of blue long-lasting BaCa2Al8O15:Eu2+, Dy3+ phosphor. Luminescence, 28. pp. 437-441. ISSN 1522-7235

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Abstract

We have synthesized and characterized a new BaCa2Al8O15:Eu2+,Dy3+ phosphor prepared by the combustion method. X-ray diffraction, thermoluminescence, scanning electron microscope, time decay and optical spectral analysis photoluminescence excitation, emission spectra were used to characterize the phosphors. Broadband ultraviolet excited luminescence of the BaCa2Al8O15:Eu2+,Dy3+ was observed in the blue region ((max)=435 nm) due to transitions from the 4f(6)5d(1) to the 4f(7) configuration of the Eu2+ ion. Scanning electron microscopy has been used for exploring the morphological properties of the prepared phosphors. The BaCa2Al8O15:Eu2+ phosphor has a blue afterglow when Dy3+ ions were co-doped. The thermoluminescence spectra show that the Dy3+ ion induces a proper trap in the phosphor with a depth of 0.67 eV and results in a long afterglow phosphorescence.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Wiley.
Subjects:	Biochemistry & Molecular Biology
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	03 Jun 2020 10:46
Last Modified:	03 Jun 2020 10:46
URI:	http://npl.csircentral.net/id/eprint/3013

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