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Title: Novel IR Phosphor Based on Sr{sub 3}La{sub 2}(Ge{sub 3}O{sub 9}){sub 2} : Nd{sup 3+},Ho{sup 3+} Germanate

Abstract

Cyclogermanate Sr{sub 3}La{sub 2}(Ge{sub 3}O{sub 9}){sub 2}, isostructural to silicate Sr{sub 3}Er{sub 2}(Si{sub 3}O{sub 9}){sub 2}, activated by neodymium and holmium is obtained for the first time by the precursor method. Ion Nd{sup 3+} in the structure of Sr{sub 3}La{sub 2}(Ge{sub 3}O{sub 9}){sub 2} is a sensitizer of the infrared luminescence of Ho{sup 3+}. Excitation by radiation with a wavelength of 808 nm leads to a series of emission lines in the luminescence spectra of Sr{sub 3}La{sub 2-x}Nd{sub x}(Ge{sub 3}O{sub 9}){sub 2} : Ho{sup 3+} in the short-wave and middle-IR ranges (1.0–3.4 μm). The highest intensity of lines at 2.1 and 2.7 μm, associated with the {sup 5}I{sub 7} → {sup 5}I{sub 8} and {sup 5}I{sub 6} → {sup 5}I{sub 7} transitions in the Ho{sup 3+} ion, is found for compositions containing traces of holmium. Based on the analysis of the concentration dependences of the luminescence intensity, an optimal composition of the phosphor is determined, which ensures the maximum efficiency of conversion of laser radiation energy. The data obtained are interpreted in the assumption of cross-relaxation energy transfer from Nd{sup 3+} to Ho{sup 3+}.

Authors:
; ; ; ; ;  [1]
  1. Russian Academy of Sciences, Institute of Solid State Chemistry, Ural Branch (Russian Federation)
Publication Date:
OSTI Identifier:
22771435
Resource Type:
Journal Article
Journal Name:
Physics of the Solid State
Additional Journal Information:
Journal Volume: 60; Journal Issue: 2; Other Information: Copyright (c) 2018 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7834
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CONCENTRATION RATIO; CONVERSION; EFFICIENCY; ENERGY TRANSFER; ERBIUM COMPOUNDS; EXCITATION; GERMANATES; HOLMIUM ADDITIONS; INFRARED RADIATION; LANTHANUM COMPOUNDS; LASER RADIATION; LUMINESCENCE; NEODYMIUM ADDITIONS; PHOSPHORS; RELAXATION; SENSITIZERS; SILICATES; SPECTRA; STRONTIUM COMPOUNDS; WAVELENGTHS

Citation Formats

Melkozerova, M. A., E-mail: melkozerova@yandex.ru, Baklanova, Ya. V., Lipina, O. A., Chufarov, A. Yu., Tyutyunnik, A. P., and Zubkov, V. G.. Novel IR Phosphor Based on Sr{sub 3}La{sub 2}(Ge{sub 3}O{sub 9}){sub 2} : Nd{sup 3+},Ho{sup 3+} Germanate. United States: N. p., 2018. Web. doi:10.1134/S1063783418020166.
Melkozerova, M. A., E-mail: melkozerova@yandex.ru, Baklanova, Ya. V., Lipina, O. A., Chufarov, A. Yu., Tyutyunnik, A. P., & Zubkov, V. G.. Novel IR Phosphor Based on Sr{sub 3}La{sub 2}(Ge{sub 3}O{sub 9}){sub 2} : Nd{sup 3+},Ho{sup 3+} Germanate. United States. doi:10.1134/S1063783418020166.
Melkozerova, M. A., E-mail: melkozerova@yandex.ru, Baklanova, Ya. V., Lipina, O. A., Chufarov, A. Yu., Tyutyunnik, A. P., and Zubkov, V. G.. Thu . "Novel IR Phosphor Based on Sr{sub 3}La{sub 2}(Ge{sub 3}O{sub 9}){sub 2} : Nd{sup 3+},Ho{sup 3+} Germanate". United States. doi:10.1134/S1063783418020166.
@article{osti_22771435,
title = {Novel IR Phosphor Based on Sr{sub 3}La{sub 2}(Ge{sub 3}O{sub 9}){sub 2} : Nd{sup 3+},Ho{sup 3+} Germanate},
author = {Melkozerova, M. A., E-mail: melkozerova@yandex.ru and Baklanova, Ya. V. and Lipina, O. A. and Chufarov, A. Yu. and Tyutyunnik, A. P. and Zubkov, V. G.},
abstractNote = {Cyclogermanate Sr{sub 3}La{sub 2}(Ge{sub 3}O{sub 9}){sub 2}, isostructural to silicate Sr{sub 3}Er{sub 2}(Si{sub 3}O{sub 9}){sub 2}, activated by neodymium and holmium is obtained for the first time by the precursor method. Ion Nd{sup 3+} in the structure of Sr{sub 3}La{sub 2}(Ge{sub 3}O{sub 9}){sub 2} is a sensitizer of the infrared luminescence of Ho{sup 3+}. Excitation by radiation with a wavelength of 808 nm leads to a series of emission lines in the luminescence spectra of Sr{sub 3}La{sub 2-x}Nd{sub x}(Ge{sub 3}O{sub 9}){sub 2} : Ho{sup 3+} in the short-wave and middle-IR ranges (1.0–3.4 μm). The highest intensity of lines at 2.1 and 2.7 μm, associated with the {sup 5}I{sub 7} → {sup 5}I{sub 8} and {sup 5}I{sub 6} → {sup 5}I{sub 7} transitions in the Ho{sup 3+} ion, is found for compositions containing traces of holmium. Based on the analysis of the concentration dependences of the luminescence intensity, an optimal composition of the phosphor is determined, which ensures the maximum efficiency of conversion of laser radiation energy. The data obtained are interpreted in the assumption of cross-relaxation energy transfer from Nd{sup 3+} to Ho{sup 3+}.},
doi = {10.1134/S1063783418020166},
journal = {Physics of the Solid State},
issn = {1063-7834},
number = 2,
volume = 60,
place = {United States},
year = {2018},
month = {2}
}