De-quenching influence of aluminum ions on Y/B ratio of Dy3+ ions in lead silicate glass matrix

M. Sundara Rao; V. Sudarsan; M. G. Brik; Y. Gandhi; K. Bhargavi; M. Piasecki; I. V. Kityk; N. Veeraiah

doi:10.1016/j.jallcom.2013.05.098

De-quenching influence of aluminum ions on Y/B ratio of Dy3+ ions in lead silicate glass matrix

M. Sundara Rao
, V. Sudarsan
, M. G. Brik
, Y. Gandhi
, K. Bhargavi
, M. Piasecki
, I. V. Kityk
, N. Veeraiah^*

^*Corresponding author for this work

Acharya Nagarjuna University
Homi Bhabha National Institute
University of Tartu
Krishna University
Jan Dlugosz University in Czestochowa
Częstochowa University of Technology
Volodymyr Dahl East Ukrainian National University

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

60 Citations (Scopus)

Abstract

Emission features of Dy3+ ions were characterized as a function of Al2O3 concentration in lead silicate glasses. The emission spectra exhibited conventional blue, yellow, orange and red emission bands due to 4F9/2?6H15/2, 6H13/2, 6H11/2 and 6H9/2 transitions of Dy3+ ions, respectively. The intensity of all these bands exhibited increasing trend with increase in the concentration of Al2O3 and this increase was attributed to decrease of luminescence quenching due to declusterization of Dy3+ ions by Al3+ ions in the glass network. From the emission spectra, the radiative parameters viz., spontaneous emission probability A, the total emission probability AT, the radiative lifetime τρ, the fluorescent branching ratio b, of different transitions originated from 4F9/2 level of Dy3+ ions were evaluated. The Y (I4F9=2→6H11/2)=B(I4F9/2→6H15/2) integral emission intensity ratio of Dy3+ ions evaluated from the luminescence spectra, showed decreasing trend with increase in the concentration of Al2O3. The decrease of this ratio is explained basing on structural modifications taking place in the vicinity of the Dy3+ ion in the glass matrix. The CIE color coordinates for three glasses were evaluated and found to be in the yellow region.

Original language	English
Pages (from-to)	375-381
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	575
DOIs	https://doi.org/10.1016/j.jallcom.2013.05.098
Publication status	Published - 2013
Externally published	Yes

Keywords

Aluminum ions
Y/B ratio

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10.1016/j.jallcom.2013.05.098

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@article{860a1b6ba9a146ce8028a0249042f0df,

title = "De-quenching influence of aluminum ions on Y/B ratio of Dy3+ ions in lead silicate glass matrix",

abstract = "Emission features of Dy3+ ions were characterized as a function of Al2O3 concentration in lead silicate glasses. The emission spectra exhibited conventional blue, yellow, orange and red emission bands due to 4F9/2?6H15/2, 6H13/2, 6H11/2 and 6H9/2 transitions of Dy3+ ions, respectively. The intensity of all these bands exhibited increasing trend with increase in the concentration of Al2O3 and this increase was attributed to decrease of luminescence quenching due to declusterization of Dy3+ ions by Al3+ ions in the glass network. From the emission spectra, the radiative parameters viz., spontaneous emission probability A, the total emission probability AT, the radiative lifetime τρ, the fluorescent branching ratio b, of different transitions originated from 4F9/2 level of Dy3+ ions were evaluated. The Y (I4F9=2→6H11/2)=B(I4F9/2→6H15/2) integral emission intensity ratio of Dy3+ ions evaluated from the luminescence spectra, showed decreasing trend with increase in the concentration of Al2O3. The decrease of this ratio is explained basing on structural modifications taking place in the vicinity of the Dy3+ ion in the glass matrix. The CIE color coordinates for three glasses were evaluated and found to be in the yellow region.",

keywords = "Aluminum ions, Y/B ratio",

author = "Rao, \{M. Sundara\} and V. Sudarsan and Brik, \{M. G.\} and Y. Gandhi and K. Bhargavi and M. Piasecki and Kityk, \{I. V.\} and N. Veeraiah",

year = "2013",

doi = "10.1016/j.jallcom.2013.05.098",

language = "English",

volume = "575",

pages = "375--381",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - De-quenching influence of aluminum ions on Y/B ratio of Dy3+ ions in lead silicate glass matrix

AU - Rao, M. Sundara

AU - Sudarsan, V.

AU - Brik, M. G.

AU - Gandhi, Y.

AU - Bhargavi, K.

AU - Piasecki, M.

AU - Kityk, I. V.

AU - Veeraiah, N.

PY - 2013

Y1 - 2013

N2 - Emission features of Dy3+ ions were characterized as a function of Al2O3 concentration in lead silicate glasses. The emission spectra exhibited conventional blue, yellow, orange and red emission bands due to 4F9/2?6H15/2, 6H13/2, 6H11/2 and 6H9/2 transitions of Dy3+ ions, respectively. The intensity of all these bands exhibited increasing trend with increase in the concentration of Al2O3 and this increase was attributed to decrease of luminescence quenching due to declusterization of Dy3+ ions by Al3+ ions in the glass network. From the emission spectra, the radiative parameters viz., spontaneous emission probability A, the total emission probability AT, the radiative lifetime τρ, the fluorescent branching ratio b, of different transitions originated from 4F9/2 level of Dy3+ ions were evaluated. The Y (I4F9=2→6H11/2)=B(I4F9/2→6H15/2) integral emission intensity ratio of Dy3+ ions evaluated from the luminescence spectra, showed decreasing trend with increase in the concentration of Al2O3. The decrease of this ratio is explained basing on structural modifications taking place in the vicinity of the Dy3+ ion in the glass matrix. The CIE color coordinates for three glasses were evaluated and found to be in the yellow region.

AB - Emission features of Dy3+ ions were characterized as a function of Al2O3 concentration in lead silicate glasses. The emission spectra exhibited conventional blue, yellow, orange and red emission bands due to 4F9/2?6H15/2, 6H13/2, 6H11/2 and 6H9/2 transitions of Dy3+ ions, respectively. The intensity of all these bands exhibited increasing trend with increase in the concentration of Al2O3 and this increase was attributed to decrease of luminescence quenching due to declusterization of Dy3+ ions by Al3+ ions in the glass network. From the emission spectra, the radiative parameters viz., spontaneous emission probability A, the total emission probability AT, the radiative lifetime τρ, the fluorescent branching ratio b, of different transitions originated from 4F9/2 level of Dy3+ ions were evaluated. The Y (I4F9=2→6H11/2)=B(I4F9/2→6H15/2) integral emission intensity ratio of Dy3+ ions evaluated from the luminescence spectra, showed decreasing trend with increase in the concentration of Al2O3. The decrease of this ratio is explained basing on structural modifications taking place in the vicinity of the Dy3+ ion in the glass matrix. The CIE color coordinates for three glasses were evaluated and found to be in the yellow region.

KW - Aluminum ions

KW - Y/B ratio

UR - https://www.scopus.com/pages/publications/84879492686

U2 - 10.1016/j.jallcom.2013.05.098

DO - 10.1016/j.jallcom.2013.05.098

M3 - Article

AN - SCOPUS:84879492686

SN - 0925-8388

VL - 575

SP - 375

EP - 381

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

De-quenching influence of aluminum ions on Y/B ratio of Dy3+ ions in lead silicate glass matrix

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Keywords

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