Influence of lead and cadmium fluoride variation on white light emission characteristics in oxyfluoride glasses and glass-ceramics

Gopi Sharma; Ruchika Bagga; Nancy Mahendru; Mauro Falconieri; Venu Gopal Achanta; Ashutosh Goel; Shaik Nayab Rasool; Navooru Vijaya

doi:https://doi.org/10.1016/j.jlumin.2014.10.066

Influence of lead and cadmium fluoride variation on white light emission characteristics in oxyfluoride glasses and glass-ceramics

Gopi Sharma, Ruchika Bagga, Nancy Mahendru, Mauro Falconieri, Venu Gopal Achanta, Ashutosh Goel, Shaik Nayab Rasool, Navooru Vijaya

School of Engineering, Materials Science & Engineering

Rutgers, The State University

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The radiative properties of Dy-doped glasses and glass-ceramic phosphors with varying lead and cadmium fluoride content are investigated in the present study for white light emitting applications. The precipitation of cubic lead fluoride phase of 10-18 nm crystallites was determined with the help of x-ray diffraction studies and the nanocrystalline nature was confirmed with scanning electron microscopy studies. The small size of the nanocrystallites enables the fabrication of transparent glass-ceramics which is verified by UV-vis spectroscopic study. The photoluminescence and lifetime measurements indicate towards progressive changes in the Dy³⁺ ion surroundings and propose enhanced energy transfers taking place post-heat treatments. Finally, CIE chromaticity coordinates are found to lie in the white region proposing the suitability of the present studied materials for color display devices.

Original language	American English
Pages (from-to)	38-46
Number of pages	9
Journal	Journal of Luminescence
Volume	159
DOIs	https://doi.org/10.1016/j.jlumin.2014.10.066
State	Published - Mar 2015

ASJC Scopus subject areas

Biophysics
Biochemistry
Chemistry(all)
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

Keywords

Glass
Glass-ceramics
Lifetime
Optical properties
Photoluminescence

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https://doi.org/10.1016/j.jlumin.2014.10.066

Cite this

@article{1e9a6cb2766449cba7e0e90b27602436,

title = "Influence of lead and cadmium fluoride variation on white light emission characteristics in oxyfluoride glasses and glass-ceramics",

abstract = "The radiative properties of Dy-doped glasses and glass-ceramic phosphors with varying lead and cadmium fluoride content are investigated in the present study for white light emitting applications. The precipitation of cubic lead fluoride phase of 10-18 nm crystallites was determined with the help of x-ray diffraction studies and the nanocrystalline nature was confirmed with scanning electron microscopy studies. The small size of the nanocrystallites enables the fabrication of transparent glass-ceramics which is verified by UV-vis spectroscopic study. The photoluminescence and lifetime measurements indicate towards progressive changes in the Dy3+ ion surroundings and propose enhanced energy transfers taking place post-heat treatments. Finally, CIE chromaticity coordinates are found to lie in the white region proposing the suitability of the present studied materials for color display devices.",

keywords = "Glass, Glass-ceramics, Lifetime, Optical properties, Photoluminescence",

author = "Gopi Sharma and Ruchika Bagga and Nancy Mahendru and Mauro Falconieri and Achanta, {Venu Gopal} and Ashutosh Goel and Rasool, {Shaik Nayab} and Navooru Vijaya",

note = "Funding Information: This work was supported by University Grants Commission of India (Grant no. F. no. 35-3/2008 (SR)), ICTP , Italy (Grant no. 421.ENEA ) and Department of Atomic Energy (Grant no. 2012/34/5/BRNS/0100 ). One of the authors (Gopi Sharma) is grateful to DST for providing FIST grant bearing no. SR/FST/FIST/College-015/2010 (c) for the purchase of FTIR and UV–vis spectrophotometer. Publisher Copyright: {\textcopyright}2014 Elsevier B.V. All rights reserved.",

year = "2015",

month = mar,

doi = "https://doi.org/10.1016/j.jlumin.2014.10.066",

language = "American English",

volume = "159",

pages = "38--46",

journal = "Journal of Luminescence",

issn = "0022-2313",

publisher = "Elsevier",

}

TY - JOUR

T1 - Influence of lead and cadmium fluoride variation on white light emission characteristics in oxyfluoride glasses and glass-ceramics

AU - Sharma, Gopi

AU - Bagga, Ruchika

AU - Mahendru, Nancy

AU - Falconieri, Mauro

AU - Achanta, Venu Gopal

AU - Goel, Ashutosh

AU - Rasool, Shaik Nayab

AU - Vijaya, Navooru

N1 - Funding Information: This work was supported by University Grants Commission of India (Grant no. F. no. 35-3/2008 (SR)), ICTP , Italy (Grant no. 421.ENEA ) and Department of Atomic Energy (Grant no. 2012/34/5/BRNS/0100 ). One of the authors (Gopi Sharma) is grateful to DST for providing FIST grant bearing no. SR/FST/FIST/College-015/2010 (c) for the purchase of FTIR and UV–vis spectrophotometer. Publisher Copyright: ©2014 Elsevier B.V. All rights reserved.

PY - 2015/3

Y1 - 2015/3

N2 - The radiative properties of Dy-doped glasses and glass-ceramic phosphors with varying lead and cadmium fluoride content are investigated in the present study for white light emitting applications. The precipitation of cubic lead fluoride phase of 10-18 nm crystallites was determined with the help of x-ray diffraction studies and the nanocrystalline nature was confirmed with scanning electron microscopy studies. The small size of the nanocrystallites enables the fabrication of transparent glass-ceramics which is verified by UV-vis spectroscopic study. The photoluminescence and lifetime measurements indicate towards progressive changes in the Dy3+ ion surroundings and propose enhanced energy transfers taking place post-heat treatments. Finally, CIE chromaticity coordinates are found to lie in the white region proposing the suitability of the present studied materials for color display devices.

AB - The radiative properties of Dy-doped glasses and glass-ceramic phosphors with varying lead and cadmium fluoride content are investigated in the present study for white light emitting applications. The precipitation of cubic lead fluoride phase of 10-18 nm crystallites was determined with the help of x-ray diffraction studies and the nanocrystalline nature was confirmed with scanning electron microscopy studies. The small size of the nanocrystallites enables the fabrication of transparent glass-ceramics which is verified by UV-vis spectroscopic study. The photoluminescence and lifetime measurements indicate towards progressive changes in the Dy3+ ion surroundings and propose enhanced energy transfers taking place post-heat treatments. Finally, CIE chromaticity coordinates are found to lie in the white region proposing the suitability of the present studied materials for color display devices.

KW - Glass

KW - Glass-ceramics

KW - Lifetime

KW - Optical properties

KW - Photoluminescence

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M3 - Article

SN - 0022-2313

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SP - 38

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JO - Journal of Luminescence

JF - Journal of Luminescence

ER -

Influence of lead and cadmium fluoride variation on white light emission characteristics in oxyfluoride glasses and glass-ceramics

Abstract

ASJC Scopus subject areas

Keywords

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