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Preparation and Characterization of Long Persistence Strontium Aluminate Phosphor

*Professor, Department of Applied Physics, Faculty of Engineering and Technology, SSGI, Shri Shankaracharya Technical Campus, Junwani, Bhilai (C.G.), India

Periodicity:October - December'2014
DOI : https://doi.org/10.26634/jms.2.3.2965

Abstract

The present paper reports the synthesis of SrAl₂O₄:Eu²⁺ , Dy³⁺ long persistent nano phosphor by combustion method using urea as reducer at 650°C. Crystallization, particles size and luminescence properties of the sample have been investigated. It is found' that the average size of particle is nano to micrometer. The emission spectra are broad bands with the peaks at 520 nm, respectively. The persistent luminescence phenomenon involves the formation of traps followed by thermal bleaching of traps and the characteristic Eu²⁺ emission as well as the nature of traps and the persistent time is 10 times longer than that of traditional sulfide phosphors . Absorption spectra and XRD have been used to characterize the synthesized phosphor.

Keywords

SrAl O ; Photoluminescence; Nanophosphor; Long Persistence; Photoluminescence; After Glow.

How to Cite this Article?

Patel, R. P. (2014). Preparation and Characterization of Long Persistence Strontium Aluminate Phosphor. i-manager's Journal on Material Science, 2(3), 27-30. https://doi.org/10.26634/jms.2.3.2965

References

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Preparation and Characterization of Long Persistence Strontium Aluminate Phosphor

Abstract

Keywords

How to Cite this Article?

References

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