TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Shah, Kevil
AU  - Sekulić, Milica
AU  - Chakrabarty, Bishwajit S.
AU  - Dramićanin, Miroslav
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9884
AB  - Nanoparticles of less than 100 nm of La2O2S co-doped with Er3+ and Yb3+ in 2% and 12% concentrations, respectively, were synthesized by the improved furnace combustion technique that limits the precursor usage and without the hazardous chemicals. The lanthanum oxysulfide was identified in hexagonal crystal phase. Under 980 nm excitation the sample exhibits a typical upconversion photoluminescence for Yb3+/Er3+. Due to the high concentration of Yb3+, the red emission of Er3+ is of high intensity due to the energy back-transfer. The red emission is less pronounced in downshifting spectrum. Chromaticity analysis shows high color purities of emissions. La2O2S:Er3+/Yb3+ nanoparticle performances as a luminescent temperature sensor were first predicted by the Judd-Ofelt theory and then compared with the conventional experimental thermometry by Luminescence intensity ratio method, with an excellent match in all parameters. The relative sensitivity at 300 K is 1.14 K−1 and it remains relatively high at the physiologically relevant range. The obtained temperature resolution was 0.17 K at 300 K.
T2  - Optik
T1  - La2O2S:Er3+/Yb3+ nanoparticles synthesized by the optimized furnace combustion technique and their high-resolution temperature sensing
VL  - 245
SP  - 167690
DO  - 10.1016/j.ijleo.2021.167690
ER  - 

@article{
author = "Ćirić, Aleksandar and Shah, Kevil and Sekulić, Milica and Chakrabarty, Bishwajit S. and Dramićanin, Miroslav",
year = "2021",
abstract = "Nanoparticles of less than 100 nm of La2O2S co-doped with Er3+ and Yb3+ in 2% and 12% concentrations, respectively, were synthesized by the improved furnace combustion technique that limits the precursor usage and without the hazardous chemicals. The lanthanum oxysulfide was identified in hexagonal crystal phase. Under 980 nm excitation the sample exhibits a typical upconversion photoluminescence for Yb3+/Er3+. Due to the high concentration of Yb3+, the red emission of Er3+ is of high intensity due to the energy back-transfer. The red emission is less pronounced in downshifting spectrum. Chromaticity analysis shows high color purities of emissions. La2O2S:Er3+/Yb3+ nanoparticle performances as a luminescent temperature sensor were first predicted by the Judd-Ofelt theory and then compared with the conventional experimental thermometry by Luminescence intensity ratio method, with an excellent match in all parameters. The relative sensitivity at 300 K is 1.14 K−1 and it remains relatively high at the physiologically relevant range. The obtained temperature resolution was 0.17 K at 300 K.",
journal = "Optik",
title = "La2O2S:Er3+/Yb3+ nanoparticles synthesized by the optimized furnace combustion technique and their high-resolution temperature sensing",
volume = "245",
pages = "167690",
doi = "10.1016/j.ijleo.2021.167690"
}

Ćirić, A., Shah, K., Sekulić, M., Chakrabarty, B. S.,& Dramićanin, M.. (2021). La2O2S:Er3+/Yb3+ nanoparticles synthesized by the optimized furnace combustion technique and their high-resolution temperature sensing. in Optik, 245, 167690.
https://doi.org/10.1016/j.ijleo.2021.167690

Ćirić A, Shah K, Sekulić M, Chakrabarty BS, Dramićanin M. La2O2S:Er3+/Yb3+ nanoparticles synthesized by the optimized furnace combustion technique and their high-resolution temperature sensing. in Optik. 2021;245:167690.
doi:10.1016/j.ijleo.2021.167690 .

Ćirić, Aleksandar, Shah, Kevil, Sekulić, Milica, Chakrabarty, Bishwajit S., Dramićanin, Miroslav, "La2O2S:Er3+/Yb3+ nanoparticles synthesized by the optimized furnace combustion technique and their high-resolution temperature sensing" in Optik, 245 (2021):167690,
https://doi.org/10.1016/j.ijleo.2021.167690 . .