Effects of Cr3+ concentration on the optical properties of Cs2NaAlF6 single crystals

Sandra S. Pedro; Lilian  P. Sosman; Ricardo B. Barthem; Julio C.G. Tedesco; Heloisa N. Bordallo

doi:10.1016/j.jlumin.2012.09.005

Effects of Cr³⁺ concentration on the optical properties of Cs₂NaAlF₆ single crystals

Sandra S. Pedro, Lilian P. Sosman, Ricardo B. Barthem, Julio C.G. Tedesco, Heloisa N. Bordallo

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Abstract

This work is devoted to the study of optical properties of the elpasolite Cs2NaAlF6 with 0.1, 1.0, 3.0, 10.0, 30.0 and 50.0% of Cr3+ ions. The interest in this system lies on the fact that it presents a high quantum yield in the visible and infrared regions and therefore can be considered for laser applications. The photoluminescence and excitation spectra were obtained at 5 and 300 K, while the absorption spectra were measured at 300 K. The spectra at 300 K show broad bands attributed to the Cr3+ ions in two non-equivalent sites, both of them with octahedral coordination, while at 5 K we can observe the vibrational modes of the [CrF6]3- complex. The ensemble of our results lead us to conclude that the material has potential applications as a lasing system.

Originalsprog	Engelsk
Tidsskrift	Journal of Luminescence
Vol/bind	134
Sider (fra-til)	100-106
ISSN	0022-2313
DOI	https://doi.org/10.1016/j.jlumin.2012.09.005
Status	Udgivet - 1 feb. 2013

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10.1016/j.jlumin.2012.09.005

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title = "Effects of Cr3+ concentration on the optical properties of Cs2NaAlF6 single crystals",

abstract = "This work is devoted to the study of optical properties of the elpasolite Cs2NaAlF6 with 0.1, 1.0, 3.0, 10.0, 30.0 and 50.0% of Cr3+ ions. The interest in this system lies on the fact that it presents a high quantum yield in the visible and infrared regions and therefore can be considered for laser applications. The photoluminescence and excitation spectra were obtained at 5 and 300 K, while the absorption spectra were measured at 300 K. The spectra at 300 K show broad bands attributed to the Cr3+ ions in two non-equivalent sites, both of them with octahedral coordination, while at 5 K we can observe the vibrational modes of the [CrF6]3- complex. The ensemble of our results lead us to conclude that the material has potential applications as a lasing system.",

author = "{S. Pedro}, Sandra and {P. Sosman}, Lilian and {B. Barthem}, Ricardo and {C.G. Tedesco}, Julio and Bordallo, {Heloisa N.}",

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doi = "10.1016/j.jlumin.2012.09.005",

language = "English",

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T1 - Effects of Cr3+ concentration on the optical properties of Cs2NaAlF6 single crystals

AU - S. Pedro, Sandra

AU - P. Sosman, Lilian

AU - B. Barthem, Ricardo

AU - C.G. Tedesco, Julio

AU - Bordallo, Heloisa N.

PY - 2013/2/1

Y1 - 2013/2/1

N2 - This work is devoted to the study of optical properties of the elpasolite Cs2NaAlF6 with 0.1, 1.0, 3.0, 10.0, 30.0 and 50.0% of Cr3+ ions. The interest in this system lies on the fact that it presents a high quantum yield in the visible and infrared regions and therefore can be considered for laser applications. The photoluminescence and excitation spectra were obtained at 5 and 300 K, while the absorption spectra were measured at 300 K. The spectra at 300 K show broad bands attributed to the Cr3+ ions in two non-equivalent sites, both of them with octahedral coordination, while at 5 K we can observe the vibrational modes of the [CrF6]3- complex. The ensemble of our results lead us to conclude that the material has potential applications as a lasing system.

AB - This work is devoted to the study of optical properties of the elpasolite Cs2NaAlF6 with 0.1, 1.0, 3.0, 10.0, 30.0 and 50.0% of Cr3+ ions. The interest in this system lies on the fact that it presents a high quantum yield in the visible and infrared regions and therefore can be considered for laser applications. The photoluminescence and excitation spectra were obtained at 5 and 300 K, while the absorption spectra were measured at 300 K. The spectra at 300 K show broad bands attributed to the Cr3+ ions in two non-equivalent sites, both of them with octahedral coordination, while at 5 K we can observe the vibrational modes of the [CrF6]3- complex. The ensemble of our results lead us to conclude that the material has potential applications as a lasing system.

U2 - 10.1016/j.jlumin.2012.09.005

DO - 10.1016/j.jlumin.2012.09.005

M3 - Journal article

SN - 0022-2313

VL - 134

SP - 100

EP - 106

JO - Journal of Luminescence

JF - Journal of Luminescence

ER -

Effects of Cr3+ concentration on the optical properties of Cs2NaAlF6 single crystals

Abstract

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Effects of Cr³⁺ concentration on the optical properties of Cs₂NaAlF₆ single crystals