Synthesis and characterization of blue long-lasting BaCa2Al8O15:Eu2+, Dy3+ phosphor
IR@NPL: CSIR-National Physical Laboratory, New Delhi
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| Title |
Synthesis and characterization of blue long-lasting BaCa2Al8O15:Eu2+, Dy3+ phosphor
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| Creator |
Yerpude, A. N.
Dhoble, S. J. Haranath, D. |
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| Subject |
Biochemistry & Molecular Biology
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| Description |
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.
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| Publisher |
Wiley
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| Date |
2013-07
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/3013/1/Synthesis%20and%20characterization%20of%20blue.pdf
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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| Relation |
http://npl.csircentral.net/3013/
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