Luminescence Studies of Erbium Doped Sodium Magnesium Boro-Tellurite Glass

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Abstract:

The optical behaviour of Er3+ (1.0 – 2.0 mol %) doped B2O3-TeO2- Na2O-MgO glasses synthesized by conventional melt-quenching technique was studied through luminescence measurements. The X-ray diffraction (XRD) pattern confirms the amorphous nature of the glasses without the existence of any sharp peak. The emission spectra at 378 nm excitation displayed three emission peaks corresponding to 2H11/2-4I15/2, 4S3/2-4I15/2 and 4I9/2-4I15/2 transitions. Hence, a schematic energy level diagram was proposed. The luminescence properties of the prepared glasses was found to be strongly affected by varying the concentration of Er3+ ions.

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Solid State Phenomena (Volume 268)

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38-42

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October 2017

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© 2017 Trans Tech Publications Ltd. All Rights Reserved

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