Europium ions and silver nanoparticles co-doped magnesium-zinc-sulfophosphate glasses: evaluation of ligand field and judd-ofelt parameters

This paper reports the ligand field and Judd-Ofelt analyses of europium ions (Eu3+) and silver nanoparticles (AgNPs) activated magnesium-zinc-sulfophosphate glasses. Such glasses of composition 63.5P2O5–20MgO–15ZnSO4–1.5Eu2O3–yAgNPs (y = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1.1 g in excess) were prepare...

Full description

Saved in:
Bibliographic Details
Main Authors: Danmallam, Ibrahim Mohammed, Ghoshal, S. K., Ariffin, R., Jupri, Siti Aishah, Sharma, Sunita
Format: Article
Published: Elsevier B.V. 2019
Subjects:
Online Access:http://eprints.utm.my/id/eprint/89506/
http://dx.doi.org/10.1016/j.jlumin.2019.116713
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utm.89506
record_format eprints
spelling my.utm.895062021-02-22T06:08:04Z http://eprints.utm.my/id/eprint/89506/ Europium ions and silver nanoparticles co-doped magnesium-zinc-sulfophosphate glasses: evaluation of ligand field and judd-ofelt parameters Danmallam, Ibrahim Mohammed Ghoshal, S. K. Ariffin, R. Jupri, Siti Aishah Sharma, Sunita QC Physics This paper reports the ligand field and Judd-Ofelt analyses of europium ions (Eu3+) and silver nanoparticles (AgNPs) activated magnesium-zinc-sulfophosphate glasses. Such glasses of composition 63.5P2O5–20MgO–15ZnSO4–1.5Eu2O3–yAgNPs (y = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1.1 g in excess) were prepared via melt quenching method and characterized by different analytical tools. The feasibility of achieving a novel glass based efficient red laser and light emitting diodes (LEDs) was explored. XRD analyses of as-quenched samples verified their glassy character. UV–Vis–NIR absorption spectra of the studied glasses displayed eight peaks at 360, 380, 394, 414, 465, 531, 2091 and 2205 nm allocated to the 7F0→5L6, 7F0→5G4, 7F1→5L6, 7F1→5D3, 7F0→5D2,7F1→5D1 7F6→7F0 and 7F1→7F6 transitions in the Eu3+. Observed improvement in the photoluminescence intensity associated to 5D0→7F2 transition was majorly attributed to the energy transfer among Eu3+ and AgNPs enabled localised surface plasmon resonance induced local field effects. TEM analysis confirmed the uniform dispersion and nucleation of AgNPs (average diameter ≈27.65 nm) in the glass matrix. Judd-Ofelt analyses were performed to calculate the intensity parameters (Ω2, Ω4 and Ω6) and radiative properties wherein the experimental optical data were utilized. For the studied glasses, the disclosed trend of Ω2˃Ω4 validated their ionic character and high symmetry environment around Eu3+. Proposed glass composition revealed excellent values of optical gain 2.82×10−25cm2S−1 to 20.81×10−25cm2S−1 and branching ratio (4.33–75.8%). Optimum values of critical laser parameters for 5D0→7F2 transition in MZSPEAg1.1 g glass was 20.8 × 10−25 cm2 s−1 for the optical gain and 21.1×10−22cm2 for gain bandwidth. Furthermore, the Racah parameters calculated from the first three significant visible absorption bands were reduced from 82.85×cm−1 to 72.33×cm−1 with the increase in AgNPs contents (from 0.1 to 1.1 g), signifying the weakening in f-f electrons repulsion. It was asserted that the proposed glass composition may contribute towards the development of solid-state laser and LEDs. Elsevier B.V. 2019-12 Article PeerReviewed Danmallam, Ibrahim Mohammed and Ghoshal, S. K. and Ariffin, R. and Jupri, Siti Aishah and Sharma, Sunita (2019) Europium ions and silver nanoparticles co-doped magnesium-zinc-sulfophosphate glasses: evaluation of ligand field and judd-ofelt parameters. Journal of Luminescence, 216 . ISSN 0022-2313 http://dx.doi.org/10.1016/j.jlumin.2019.116713 DOI:10.1016/j.jlumin.2019.116713
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/
topic QC Physics
spellingShingle QC Physics
Danmallam, Ibrahim Mohammed
Ghoshal, S. K.
Ariffin, R.
Jupri, Siti Aishah
Sharma, Sunita
Europium ions and silver nanoparticles co-doped magnesium-zinc-sulfophosphate glasses: evaluation of ligand field and judd-ofelt parameters
description This paper reports the ligand field and Judd-Ofelt analyses of europium ions (Eu3+) and silver nanoparticles (AgNPs) activated magnesium-zinc-sulfophosphate glasses. Such glasses of composition 63.5P2O5–20MgO–15ZnSO4–1.5Eu2O3–yAgNPs (y = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1.1 g in excess) were prepared via melt quenching method and characterized by different analytical tools. The feasibility of achieving a novel glass based efficient red laser and light emitting diodes (LEDs) was explored. XRD analyses of as-quenched samples verified their glassy character. UV–Vis–NIR absorption spectra of the studied glasses displayed eight peaks at 360, 380, 394, 414, 465, 531, 2091 and 2205 nm allocated to the 7F0→5L6, 7F0→5G4, 7F1→5L6, 7F1→5D3, 7F0→5D2,7F1→5D1 7F6→7F0 and 7F1→7F6 transitions in the Eu3+. Observed improvement in the photoluminescence intensity associated to 5D0→7F2 transition was majorly attributed to the energy transfer among Eu3+ and AgNPs enabled localised surface plasmon resonance induced local field effects. TEM analysis confirmed the uniform dispersion and nucleation of AgNPs (average diameter ≈27.65 nm) in the glass matrix. Judd-Ofelt analyses were performed to calculate the intensity parameters (Ω2, Ω4 and Ω6) and radiative properties wherein the experimental optical data were utilized. For the studied glasses, the disclosed trend of Ω2˃Ω4 validated their ionic character and high symmetry environment around Eu3+. Proposed glass composition revealed excellent values of optical gain 2.82×10−25cm2S−1 to 20.81×10−25cm2S−1 and branching ratio (4.33–75.8%). Optimum values of critical laser parameters for 5D0→7F2 transition in MZSPEAg1.1 g glass was 20.8 × 10−25 cm2 s−1 for the optical gain and 21.1×10−22cm2 for gain bandwidth. Furthermore, the Racah parameters calculated from the first three significant visible absorption bands were reduced from 82.85×cm−1 to 72.33×cm−1 with the increase in AgNPs contents (from 0.1 to 1.1 g), signifying the weakening in f-f electrons repulsion. It was asserted that the proposed glass composition may contribute towards the development of solid-state laser and LEDs.
format Article
author Danmallam, Ibrahim Mohammed
Ghoshal, S. K.
Ariffin, R.
Jupri, Siti Aishah
Sharma, Sunita
author_facet Danmallam, Ibrahim Mohammed
Ghoshal, S. K.
Ariffin, R.
Jupri, Siti Aishah
Sharma, Sunita
author_sort Danmallam, Ibrahim Mohammed
title Europium ions and silver nanoparticles co-doped magnesium-zinc-sulfophosphate glasses: evaluation of ligand field and judd-ofelt parameters
title_short Europium ions and silver nanoparticles co-doped magnesium-zinc-sulfophosphate glasses: evaluation of ligand field and judd-ofelt parameters
title_full Europium ions and silver nanoparticles co-doped magnesium-zinc-sulfophosphate glasses: evaluation of ligand field and judd-ofelt parameters
title_fullStr Europium ions and silver nanoparticles co-doped magnesium-zinc-sulfophosphate glasses: evaluation of ligand field and judd-ofelt parameters
title_full_unstemmed Europium ions and silver nanoparticles co-doped magnesium-zinc-sulfophosphate glasses: evaluation of ligand field and judd-ofelt parameters
title_sort europium ions and silver nanoparticles co-doped magnesium-zinc-sulfophosphate glasses: evaluation of ligand field and judd-ofelt parameters
publisher Elsevier B.V.
publishDate 2019
url http://eprints.utm.my/id/eprint/89506/
http://dx.doi.org/10.1016/j.jlumin.2019.116713
_version_ 1692991792171974656
score 13.211869