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Samarium activated absorption and emission of zinc tellurite glass

Enhanced absorption and emission cross-sections of rare earth doped binary glasses are highly demanding for various photonic applications. Determining the right glass compositions with appropriate rare earth dopants remain challenging. Different microscopic mechanisms responsible for optical enhance...

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Main Authors: Tanko, Y. A., Sahar, M. R., Ghoshal, S. K.
Format: Article
Language:English
Published: Penerbit UTM Press 2016
Subjects:
QC Physics
Online Access:http://eprints.utm.my/id/eprint/74425/1/YATanko2016_SamariumActivatedAbsorptionandEmission.pdf
http://eprints.utm.my/id/eprint/74425/
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spelling my.utm.744252017-11-22T12:07:40Z http://eprints.utm.my/id/eprint/74425/ Samarium activated absorption and emission of zinc tellurite glass Tanko, Y. A. Sahar, M. R. Ghoshal, S. K. QC Physics Enhanced absorption and emission cross-sections of rare earth doped binary glasses are highly demanding for various photonic applications. Determining the right glass compositions with appropriate rare earth dopants remain challenging. Different microscopic mechanisms responsible for optical enhancement and quenching are not fully understood. In this view, we prepare a series of glasses with composition (80-x)TeO2-20ZnO-(x)Sm2O3, where 0 ≤ × ≤ 1.5 mol% using melt quenching technique. X-ray diffraction (XRD), Photoluminescence (PL) and Ultraviolet Visible Near-Infrared (UV-Vis-NIR) spectroscopic measurements are carried out to inspect the samarium concentration dependent absorption and emission features of the prepared glasses. Physical properties such as glass density and molar volume are found to be in the range 5.57-5.61 g cm-3 and 25.84-26.15 cm3 mol-1, respectively. XRD pattern verifies the amorphous nature of the prepared samples. The UV-Vis-NIR absorption spectra reveal nine peaks centered at 470, 548, 947, 1085, 1238, 1385, 1492, 1550 and 1589 nm. These bands arise due to6H5/2→4|11/2,4G5/2,6F11/2,6F9/2,6F7/2,6F5/2,6F3/2,6H15/2, and6F1/2 transitions, respectively. PL spectra under the excitation of 452 nm display four emission bands centered at 563, 600, 644 and 705 nm corresponding to4G5/2→6H5/2,6H7/2,6H9/2 and6H11/2 transitions of samarium ions. The mechanism of photoluminescence enhancement is identified, analyzed, and understood. A correlation between samarium concentration and optical response is established. This composition may be useful for fabricating various optical devices. Penerbit UTM Press 2016 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/74425/1/YATanko2016_SamariumActivatedAbsorptionandEmission.pdf Tanko, Y. A. and Sahar, M. R. and Ghoshal, S. K. (2016) Samarium activated absorption and emission of zinc tellurite glass. Jurnal Teknologi, 78 (3-2). pp. 149-152. ISSN 0127-9696 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962591463&doi=10.11113%2fjt.v78.7834&partnerID=40&md5=d4277661630171bdd1418445949ca216
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic QC Physics
spellingShingle QC Physics
Tanko, Y. A.
Sahar, M. R.
Ghoshal, S. K.
Samarium activated absorption and emission of zinc tellurite glass
description Enhanced absorption and emission cross-sections of rare earth doped binary glasses are highly demanding for various photonic applications. Determining the right glass compositions with appropriate rare earth dopants remain challenging. Different microscopic mechanisms responsible for optical enhancement and quenching are not fully understood. In this view, we prepare a series of glasses with composition (80-x)TeO2-20ZnO-(x)Sm2O3, where 0 ≤ × ≤ 1.5 mol% using melt quenching technique. X-ray diffraction (XRD), Photoluminescence (PL) and Ultraviolet Visible Near-Infrared (UV-Vis-NIR) spectroscopic measurements are carried out to inspect the samarium concentration dependent absorption and emission features of the prepared glasses. Physical properties such as glass density and molar volume are found to be in the range 5.57-5.61 g cm-3 and 25.84-26.15 cm3 mol-1, respectively. XRD pattern verifies the amorphous nature of the prepared samples. The UV-Vis-NIR absorption spectra reveal nine peaks centered at 470, 548, 947, 1085, 1238, 1385, 1492, 1550 and 1589 nm. These bands arise due to6H5/2→4|11/2,4G5/2,6F11/2,6F9/2,6F7/2,6F5/2,6F3/2,6H15/2, and6F1/2 transitions, respectively. PL spectra under the excitation of 452 nm display four emission bands centered at 563, 600, 644 and 705 nm corresponding to4G5/2→6H5/2,6H7/2,6H9/2 and6H11/2 transitions of samarium ions. The mechanism of photoluminescence enhancement is identified, analyzed, and understood. A correlation between samarium concentration and optical response is established. This composition may be useful for fabricating various optical devices.
format Article
author Tanko, Y. A.
Sahar, M. R.
Ghoshal, S. K.
author_facet Tanko, Y. A.
Sahar, M. R.
Ghoshal, S. K.
author_sort Tanko, Y. A.
title Samarium activated absorption and emission of zinc tellurite glass
title_short Samarium activated absorption and emission of zinc tellurite glass
title_full Samarium activated absorption and emission of zinc tellurite glass
title_fullStr Samarium activated absorption and emission of zinc tellurite glass
title_full_unstemmed Samarium activated absorption and emission of zinc tellurite glass
title_sort samarium activated absorption and emission of zinc tellurite glass
publisher Penerbit UTM Press
publishDate 2016
url http://eprints.utm.my/id/eprint/74425/1/YATanko2016_SamariumActivatedAbsorptionandEmission.pdf
http://eprints.utm.my/id/eprint/74425/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962591463&doi=10.11113%2fjt.v78.7834&partnerID=40&md5=d4277661630171bdd1418445949ca216
_version_ 1643656855550951424
score 13.211869

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