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Influence of silver nanoparticles concentration on spectroscopic characteristics of samarium doped zinc tellurite glass

Tuning the enhanced optical properties of rare earth doped inorganic glasses by embedding metallic nanoparticles is ever-demanding in photonics. Optimized doping of NPs and subsequent detail characterizations for improved absorption and emission are the key issue. The effect of silver (Ag) nanoparti...

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Main Author: Mohd. Saidi, Mohd. Syamsul Affendy
Format: Thesis
Language:English
Published: 2015
Subjects:
QC Physics
Online Access:http://eprints.utm.my/id/eprint/81583/1/MohdSyamsulAffendyMFS2015.pdf
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spelling my.utm.815832019-09-10T01:41:14Z http://eprints.utm.my/id/eprint/81583/ Influence of silver nanoparticles concentration on spectroscopic characteristics of samarium doped zinc tellurite glass Mohd. Saidi, Mohd. Syamsul Affendy QC Physics Tuning the enhanced optical properties of rare earth doped inorganic glasses by embedding metallic nanoparticles is ever-demanding in photonics. Optimized doping of NPs and subsequent detail characterizations for improved absorption and emission are the key issue. The effect of silver (Ag) nanoparticle on physical, structural and optical properties of Sm3+ doped zinc-sodium tellurite glass with composition 65TeO2-25ZnO-10Na2O-0.15 gramSm2O3-(y)AgCl, where y = 0, 0.003, 0.075, 0.12 and 0.18 gram are determined. Glass samples are prepared using melt quenching technique method and characterized by ultraviolet visible near infrared (UV-Vis-NIR) absorption spectroscopy, photoluminescence (PL) spectroscopy, transmission electron microscopy (TEM), Raman spectroscopy and X-ray diffraction (XRD). XRD pattern confirms the amorphous nature of as-prepared glass. The incorporation of Ag NPs is evidenced to alter the structural arrangement and modifies the physical properties of glasses. The UV-Vis-NIR absorption spectra reveal six absorption peaks centered at 472 nm, 943 nm, 1089 nm, 1237 nm, 1392 nm, 1491 nm assigned to 6H5/2?4I11/2,6F11/2 , 6F9/2 , 6F7/2 , 6F5/2 , 6F3/2 transitions, respectively. TEM micrograph displays the uniform size distribution of silver nanoparticle with average diameter of ~7.9 nm. PL spectra exhibit two emission bands located at 599 nm and 643 nm due to 4G5/2?6H7/2 and 6H9/2 transitions, respectively. The observed enhancement in PL intensity is attributed to the highly localized electric field of Ag positioned in the vicinity of Sm3+ ion. Raman spectra shows the appearance of five peaks originates from 99.44 cm-1, 179.88 cm-1, 414.37 cm-1, 673.44 cm-1 and 768.66 cm-1 which corresponds to boson peak, network connectivity represents the Te2O7 and TeO4-4, stretching and bending Te-O-Te linkages, antisymmetric vibration of Teeq-Oax-Te linkages and stretching of NBO with adjacent Te atoms respectively. It is asserted that the amplification in Raman signal is initiated by the contribution of surface plasmon. The mechanism of enhancement is identified, analyzed and understood. The admirable features of our results are highly beneficial for solid-state laser and optical device fabrication. 2015 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/81583/1/MohdSyamsulAffendyMFS2015.pdf Mohd. Saidi, Mohd. Syamsul Affendy (2015) Influence of silver nanoparticles concentration on spectroscopic characteristics of samarium doped zinc tellurite glass. Masters thesis, Universiti Teknologi Malaysia. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:120018
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
Mohd. Saidi, Mohd. Syamsul Affendy
Influence of silver nanoparticles concentration on spectroscopic characteristics of samarium doped zinc tellurite glass
description Tuning the enhanced optical properties of rare earth doped inorganic glasses by embedding metallic nanoparticles is ever-demanding in photonics. Optimized doping of NPs and subsequent detail characterizations for improved absorption and emission are the key issue. The effect of silver (Ag) nanoparticle on physical, structural and optical properties of Sm3+ doped zinc-sodium tellurite glass with composition 65TeO2-25ZnO-10Na2O-0.15 gramSm2O3-(y)AgCl, where y = 0, 0.003, 0.075, 0.12 and 0.18 gram are determined. Glass samples are prepared using melt quenching technique method and characterized by ultraviolet visible near infrared (UV-Vis-NIR) absorption spectroscopy, photoluminescence (PL) spectroscopy, transmission electron microscopy (TEM), Raman spectroscopy and X-ray diffraction (XRD). XRD pattern confirms the amorphous nature of as-prepared glass. The incorporation of Ag NPs is evidenced to alter the structural arrangement and modifies the physical properties of glasses. The UV-Vis-NIR absorption spectra reveal six absorption peaks centered at 472 nm, 943 nm, 1089 nm, 1237 nm, 1392 nm, 1491 nm assigned to 6H5/2?4I11/2,6F11/2 , 6F9/2 , 6F7/2 , 6F5/2 , 6F3/2 transitions, respectively. TEM micrograph displays the uniform size distribution of silver nanoparticle with average diameter of ~7.9 nm. PL spectra exhibit two emission bands located at 599 nm and 643 nm due to 4G5/2?6H7/2 and 6H9/2 transitions, respectively. The observed enhancement in PL intensity is attributed to the highly localized electric field of Ag positioned in the vicinity of Sm3+ ion. Raman spectra shows the appearance of five peaks originates from 99.44 cm-1, 179.88 cm-1, 414.37 cm-1, 673.44 cm-1 and 768.66 cm-1 which corresponds to boson peak, network connectivity represents the Te2O7 and TeO4-4, stretching and bending Te-O-Te linkages, antisymmetric vibration of Teeq-Oax-Te linkages and stretching of NBO with adjacent Te atoms respectively. It is asserted that the amplification in Raman signal is initiated by the contribution of surface plasmon. The mechanism of enhancement is identified, analyzed and understood. The admirable features of our results are highly beneficial for solid-state laser and optical device fabrication.
format Thesis
author Mohd. Saidi, Mohd. Syamsul Affendy
author_facet Mohd. Saidi, Mohd. Syamsul Affendy
author_sort Mohd. Saidi, Mohd. Syamsul Affendy
title Influence of silver nanoparticles concentration on spectroscopic characteristics of samarium doped zinc tellurite glass
title_short Influence of silver nanoparticles concentration on spectroscopic characteristics of samarium doped zinc tellurite glass
title_full Influence of silver nanoparticles concentration on spectroscopic characteristics of samarium doped zinc tellurite glass
title_fullStr Influence of silver nanoparticles concentration on spectroscopic characteristics of samarium doped zinc tellurite glass
title_full_unstemmed Influence of silver nanoparticles concentration on spectroscopic characteristics of samarium doped zinc tellurite glass
title_sort influence of silver nanoparticles concentration on spectroscopic characteristics of samarium doped zinc tellurite glass
publishDate 2015
url http://eprints.utm.my/id/eprint/81583/1/MohdSyamsulAffendyMFS2015.pdf
http://eprints.utm.my/id/eprint/81583/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:120018
_version_ 1646010303324880896
score 13.211869

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