Dependence of the Mn4+ spectroscopic properties on the host composition: Case study of stannate pyrochlores A2Sn2O7 (A = La, Gd, Y, Lu)

M. G. Brik; A. M. Srivastava; C. G. Ma; M. Piasecki

doi:10.1016/j.jlumin.2019.116834

Dependence of the Mn⁴⁺ spectroscopic properties on the host composition: Case study of stannate pyrochlores A₂Sn₂O₇ (A = La, Gd, Y, Lu)

M. G. Brik^*
, A. M. Srivastava
, C. G. Ma
, M. Piasecki

^*Corresponding author for this work

Chongqing University of Posts and Telecommunications
University of Tartu
Jan Dlugosz University in Czestochowa
General Electric

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

12 Citations (Scopus)

Abstract

In this paper we have studied the spectroscopic properties of Mn⁴⁺ in four stannate pyrochlores A₂Sn₂O₇ (A = La, Gd, Y, Lu). Photoluminescence and photoluminescence excitation spectra were recorded at low temperature. The Mn⁴⁺ energy levels in all four hosts were calculated using the exchange charge model of crystal field. Consistent variation of the main spectroscopic features with the lattice constant and Mn–O distance are revealed. The findings of this combined experimental and theoretical study may be used to predict the Mn⁴⁺ spectroscopic characteristics in other similar materials.

Original language	English
Article number	116834
Journal	Journal of Luminescence
Volume	218
DOIs	https://doi.org/10.1016/j.jlumin.2019.116834
Publication status	Published - Feb 2020
Externally published	Yes

Keywords

Mn4+ luminescence
Red phosphors
White LEDs

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10.1016/j.jlumin.2019.116834

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title = "Dependence of the Mn4+ spectroscopic properties on the host composition: Case study of stannate pyrochlores A2Sn2O7 (A = La, Gd, Y, Lu)",

abstract = "In this paper we have studied the spectroscopic properties of Mn4+ in four stannate pyrochlores A2Sn2O7 (A = La, Gd, Y, Lu). Photoluminescence and photoluminescence excitation spectra were recorded at low temperature. The Mn4+ energy levels in all four hosts were calculated using the exchange charge model of crystal field. Consistent variation of the main spectroscopic features with the lattice constant and Mn–O distance are revealed. The findings of this combined experimental and theoretical study may be used to predict the Mn4+ spectroscopic characteristics in other similar materials.",

keywords = "Mn4+ luminescence, Red phosphors, White LEDs",

author = "Brik, \{M. G.\} and Srivastava, \{A. M.\} and Ma, \{C. G.\} and M. Piasecki",

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doi = "10.1016/j.jlumin.2019.116834",

language = "English",

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T2 - Case study of stannate pyrochlores A2Sn2O7 (A = La, Gd, Y, Lu)

AU - Brik, M. G.

AU - Srivastava, A. M.

AU - Ma, C. G.

AU - Piasecki, M.

PY - 2020/2

Y1 - 2020/2

N2 - In this paper we have studied the spectroscopic properties of Mn4+ in four stannate pyrochlores A2Sn2O7 (A = La, Gd, Y, Lu). Photoluminescence and photoluminescence excitation spectra were recorded at low temperature. The Mn4+ energy levels in all four hosts were calculated using the exchange charge model of crystal field. Consistent variation of the main spectroscopic features with the lattice constant and Mn–O distance are revealed. The findings of this combined experimental and theoretical study may be used to predict the Mn4+ spectroscopic characteristics in other similar materials.

AB - In this paper we have studied the spectroscopic properties of Mn4+ in four stannate pyrochlores A2Sn2O7 (A = La, Gd, Y, Lu). Photoluminescence and photoluminescence excitation spectra were recorded at low temperature. The Mn4+ energy levels in all four hosts were calculated using the exchange charge model of crystal field. Consistent variation of the main spectroscopic features with the lattice constant and Mn–O distance are revealed. The findings of this combined experimental and theoretical study may be used to predict the Mn4+ spectroscopic characteristics in other similar materials.

KW - Mn4+ luminescence

KW - Red phosphors

KW - White LEDs

UR - https://www.scopus.com/pages/publications/85074059578

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DO - 10.1016/j.jlumin.2019.116834

M3 - Article

AN - SCOPUS:85074059578

SN - 0022-2313

VL - 218

JO - Journal of Luminescence

JF - Journal of Luminescence

M1 - 116834

ER -

Dependence of the Mn⁴⁺ spectroscopic properties on the host composition: Case study of stannate pyrochlores A₂Sn₂O₇ (A = La, Gd, Y, Lu)

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Keywords

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