Red light emission from europium doped zinc sodium bismuth borate glasses

Vinod Hegde, C. S.Dwaraka Viswanath, Vyasa Upadhyaya, K. K. Mahato, Sudha D. Kamath

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Zinc sodium bismuth borate (ZNBB) glasses doped with different concentrations of europium were prepared by conventional melt quenching method and characterized through the measurements of density, refractive index, X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectra, optical absorption, luminescence and radiative lifetimes. FTIR spectra showed seven characteristic peaks of bismuth and borate functional groups in the range of 400–1600 cm−1. The optical band gap and bonding parameters have been calculated from absorption spectra. Photoluminescence spectra recorded in the visible region with 394 nm excitation are used to calculate the Judd-Ofelt (JO) intensity parameters (Ω2 and Ω4). The JO intensity parameters have been used to calculate the radiative parameters such as branching ratio (β), stimulated emission cross-section (σse), transition probability (A) for the fluorescent level of 5D07F2. Decay rates through single exponential are used to calculate the lifetime (τm) of the meta-stable state 5D0 of (Eu3+ ion) these glasses. The radiative parameters measured for all these glasses show 0.7 mol% europium doped zinc sodium bismuth borate glass 5D07F2 transition has the potential for red laser applications. The quality of the colour emitted by the present glasses are estimated quantitatively by CIE chromaticity coordinates, which confirms the suitability of these glasses as a red emitting material for field emission technologies and LEDs.

Original languageEnglish
Pages (from-to)35-43
Number of pages9
JournalPhysica B: Condensed Matter
Volume527
DOIs
Publication statusPublished - 15-12-2017

Fingerprint

Europium
Borates
Bismuth
Light emission
europium
borates
bismuth
light emission
Zinc
zinc
Sodium
sodium
Glass
glass
Fourier transforms
life (durability)
Infrared radiation
infrared spectra
Laser applications
Stimulated emission

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

@article{5ef9298e28c94cde9bebd2c455947025,
title = "Red light emission from europium doped zinc sodium bismuth borate glasses",
abstract = "Zinc sodium bismuth borate (ZNBB) glasses doped with different concentrations of europium were prepared by conventional melt quenching method and characterized through the measurements of density, refractive index, X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectra, optical absorption, luminescence and radiative lifetimes. FTIR spectra showed seven characteristic peaks of bismuth and borate functional groups in the range of 400–1600 cm−1. The optical band gap and bonding parameters have been calculated from absorption spectra. Photoluminescence spectra recorded in the visible region with 394 nm excitation are used to calculate the Judd-Ofelt (JO) intensity parameters (Ω2 and Ω4). The JO intensity parameters have been used to calculate the radiative parameters such as branching ratio (β), stimulated emission cross-section (σse), transition probability (A) for the fluorescent level of 5D0→7F2. Decay rates through single exponential are used to calculate the lifetime (τm) of the meta-stable state 5D0 of (Eu3+ ion) these glasses. The radiative parameters measured for all these glasses show 0.7 mol{\%} europium doped zinc sodium bismuth borate glass 5D0→7F2 transition has the potential for red laser applications. The quality of the colour emitted by the present glasses are estimated quantitatively by CIE chromaticity coordinates, which confirms the suitability of these glasses as a red emitting material for field emission technologies and LEDs.",
author = "Vinod Hegde and Viswanath, {C. S.Dwaraka} and Vyasa Upadhyaya and Mahato, {K. K.} and Kamath, {Sudha D.}",
year = "2017",
month = "12",
day = "15",
doi = "10.1016/j.physb.2017.09.113",
language = "English",
volume = "527",
pages = "35--43",
journal = "Physica B: Condensed Matter",
issn = "0921-4526",
publisher = "Elsevier",

}

Red light emission from europium doped zinc sodium bismuth borate glasses. / Hegde, Vinod; Viswanath, C. S.Dwaraka; Upadhyaya, Vyasa; Mahato, K. K.; Kamath, Sudha D.

In: Physica B: Condensed Matter, Vol. 527, 15.12.2017, p. 35-43.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Red light emission from europium doped zinc sodium bismuth borate glasses

AU - Hegde, Vinod

AU - Viswanath, C. S.Dwaraka

AU - Upadhyaya, Vyasa

AU - Mahato, K. K.

AU - Kamath, Sudha D.

PY - 2017/12/15

Y1 - 2017/12/15

N2 - Zinc sodium bismuth borate (ZNBB) glasses doped with different concentrations of europium were prepared by conventional melt quenching method and characterized through the measurements of density, refractive index, X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectra, optical absorption, luminescence and radiative lifetimes. FTIR spectra showed seven characteristic peaks of bismuth and borate functional groups in the range of 400–1600 cm−1. The optical band gap and bonding parameters have been calculated from absorption spectra. Photoluminescence spectra recorded in the visible region with 394 nm excitation are used to calculate the Judd-Ofelt (JO) intensity parameters (Ω2 and Ω4). The JO intensity parameters have been used to calculate the radiative parameters such as branching ratio (β), stimulated emission cross-section (σse), transition probability (A) for the fluorescent level of 5D0→7F2. Decay rates through single exponential are used to calculate the lifetime (τm) of the meta-stable state 5D0 of (Eu3+ ion) these glasses. The radiative parameters measured for all these glasses show 0.7 mol% europium doped zinc sodium bismuth borate glass 5D0→7F2 transition has the potential for red laser applications. The quality of the colour emitted by the present glasses are estimated quantitatively by CIE chromaticity coordinates, which confirms the suitability of these glasses as a red emitting material for field emission technologies and LEDs.

AB - Zinc sodium bismuth borate (ZNBB) glasses doped with different concentrations of europium were prepared by conventional melt quenching method and characterized through the measurements of density, refractive index, X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectra, optical absorption, luminescence and radiative lifetimes. FTIR spectra showed seven characteristic peaks of bismuth and borate functional groups in the range of 400–1600 cm−1. The optical band gap and bonding parameters have been calculated from absorption spectra. Photoluminescence spectra recorded in the visible region with 394 nm excitation are used to calculate the Judd-Ofelt (JO) intensity parameters (Ω2 and Ω4). The JO intensity parameters have been used to calculate the radiative parameters such as branching ratio (β), stimulated emission cross-section (σse), transition probability (A) for the fluorescent level of 5D0→7F2. Decay rates through single exponential are used to calculate the lifetime (τm) of the meta-stable state 5D0 of (Eu3+ ion) these glasses. The radiative parameters measured for all these glasses show 0.7 mol% europium doped zinc sodium bismuth borate glass 5D0→7F2 transition has the potential for red laser applications. The quality of the colour emitted by the present glasses are estimated quantitatively by CIE chromaticity coordinates, which confirms the suitability of these glasses as a red emitting material for field emission technologies and LEDs.

UR - http://www.scopus.com/inward/record.url?scp=85030714569&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85030714569&partnerID=8YFLogxK

U2 - 10.1016/j.physb.2017.09.113

DO - 10.1016/j.physb.2017.09.113

M3 - Article

VL - 527

SP - 35

EP - 43

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

ER -