Temperature dependence of the Cr3+-DOPED Mg2TiO4 near-infrared emission

This paper presents the Cr3+-activated Mg2TiO4 phosphor temperature dependance of its near infrared luminescence and its potential in the optical thermometry applications. In this respect, temperature dependences of three emission features were tested over the broad temperature range (10–500 K): (i) the luminescence intensity ratio (LIR) between emissions from 4T2→4A2 and 2E→4A2 transitions, (ii) the emission lifetime, and (iii) the shift of the 2E→4A2 emission band. We observed that LIR follows the Boltzmann equation for T > 300 K with the maximal value of relative sensitivity of 1.73 %K−1. The lifetime value of the 2E→4A2 transition strongly decreases with temperature with a maximal relative sensitivity of about 0.75 %K−1 at around 430K. Finally, the shift of the emission band is about 65 cm−1 over the complete temperature range.

Keywords:

Band shift / Lifetime / Luminescence intensity ratio / Luminescent thermometry / MgTiO Cr / Phosphors

Source:
Optical Materials, 2021, 120, 111468-

Funding / projects:

National Recruitment Program of High-end Foreign Experts [GDT20185200479]
Ministry of Education, Science & Technological Development, Serbia
Chongqing Recruitment Program for 100 Overseas Innovative Talents [2015013]
Program for the Foreign Experts [W2017011]
Wenfeng High-end Talents Project [W2016-01]
Estonian Research Council [PUT PRG111]
European Regional Development Fund [TK141]
NCN [2018/31/B/ST4/00924]

DOI: 10.1016/j.optmat.2021.111468

ISSN: 0925-3467

WoS: 000691533400004

Scopus: 2-s2.0-85112832688

[ Google Scholar ]


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TY  - JOUR
AU  - Ristić, Zoran
AU  - Đorđević, Vesna R.
AU  - Medić, Mina M.
AU  - Kuzman, Sanja
AU  - Brik, Mikhail G.
AU  - Antić, Željka
AU  - Dramićanin, Miroslav
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9910
AB  - This paper presents the Cr3+-activated Mg2TiO4 phosphor temperature dependance of its near infrared luminescence and its potential in the optical thermometry applications. In this respect, temperature dependences of three emission features were tested over the broad temperature range (10–500 K): (i) the luminescence intensity ratio (LIR) between emissions from 4T2→4A2 and 2E→4A2 transitions, (ii) the emission lifetime, and (iii) the shift of the 2E→4A2 emission band. We observed that LIR follows the Boltzmann equation for T > 300 K with the maximal value of relative sensitivity of 1.73 %K−1. The lifetime value of the 2E→4A2 transition strongly decreases with temperature with a maximal relative sensitivity of about 0.75 %K−1 at around 430K. Finally, the shift of the emission band is about 65 cm−1 over the complete temperature range.
T2  - Optical Materials
T1  - Temperature dependence of the Cr3+-DOPED Mg2TiO4 near-infrared emission
VL  - 120
SP  - 111468
DO  - 10.1016/j.optmat.2021.111468
ER  -

@article{
author = "Ristić, Zoran and Đorđević, Vesna R. and Medić, Mina M. and Kuzman, Sanja and Brik, Mikhail G. and Antić, Željka and Dramićanin, Miroslav",
year = "2021",
abstract = "This paper presents the Cr3+-activated Mg2TiO4 phosphor temperature dependance of its near infrared luminescence and its potential in the optical thermometry applications. In this respect, temperature dependences of three emission features were tested over the broad temperature range (10–500 K): (i) the luminescence intensity ratio (LIR) between emissions from 4T2→4A2 and 2E→4A2 transitions, (ii) the emission lifetime, and (iii) the shift of the 2E→4A2 emission band. We observed that LIR follows the Boltzmann equation for T > 300 K with the maximal value of relative sensitivity of 1.73 %K−1. The lifetime value of the 2E→4A2 transition strongly decreases with temperature with a maximal relative sensitivity of about 0.75 %K−1 at around 430K. Finally, the shift of the emission band is about 65 cm−1 over the complete temperature range.",
journal = "Optical Materials",
title = "Temperature dependence of the Cr3+-DOPED Mg2TiO4 near-infrared emission",
volume = "120",
pages = "111468",
doi = "10.1016/j.optmat.2021.111468"
}

Ristić, Z., Đorđević, V. R., Medić, M. M., Kuzman, S., Brik, M. G., Antić, Ž.,& Dramićanin, M.. (2021). Temperature dependence of the Cr3+-DOPED Mg2TiO4 near-infrared emission. in Optical Materials, 120, 111468.
https://doi.org/10.1016/j.optmat.2021.111468

Ristić Z, Đorđević VR, Medić MM, Kuzman S, Brik MG, Antić Ž, Dramićanin M. Temperature dependence of the Cr3+-DOPED Mg2TiO4 near-infrared emission. in Optical Materials. 2021;120:111468.
doi:10.1016/j.optmat.2021.111468 .

Ristić, Zoran, Đorđević, Vesna R., Medić, Mina M., Kuzman, Sanja, Brik, Mikhail G., Antić, Željka, Dramićanin, Miroslav, "Temperature dependence of the Cr3+-DOPED Mg2TiO4 near-infrared emission" in Optical Materials, 120 (2021):111468,
https://doi.org/10.1016/j.optmat.2021.111468 . .