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Upconversion photoluminescence of sub-micron lanthanum oxysulfide particles co-doped with Yb3+/Ho3+ and Yb3+/Tm3+ synthesized by optimized combustion technique
Upconversion sub-micron particles are one of the most perspective materials due to their wide application range, the most important being in the bio-medicinal field where they can be used for labeling, sensing, treatment or drug delivery. Chemically stable upconversion sub-micron particles of La2O2S co-doped with Yb3+/Ho3+ and Yb3+/Tm3+ were synthesized and characterized. Different concentrations of Yb3+/Ho3+ and Yb3+/Tm3+ were successfully incorporated into the hexagonal crystal structure of lanthanum oxysulfide using the optimized solution combustion synthesis method with urea as a fuel. Sub-micron particles of less than 50 nm in diameter showed the typical upconversion photoluminescence when exited by 980 nm laser. The highest PL intensities were obtained in La2O2S co-doped with 8 wt% Yb and 1.5 wt% Ho, or in case of La2O2S:Yb3+/Tm3+ with 4 wt% Yb and 0.5 wt% Tm. The CIE 1976 chromaticity coordinates of Ho3+ photoluminescence emission are (0.119, 0.581), with color purity of 98.7 %.... The chromaticity of upconversion emission was invariant to doping concentrations.
TY - JOUR
AU - Ćirić, Aleksandar
AU - Sekulić, Milica
AU - Shah, Kevil
AU - Chakrabarty, Bishwajit S.
AU - Dramićanin, Miroslav
PY - 2021
UR - https://vinar.vin.bg.ac.rs/handle/123456789/9885
AB - Upconversion sub-micron particles are one of the most perspective materials due to their wide application range, the most important being in the bio-medicinal field where they can be used for labeling, sensing, treatment or drug delivery. Chemically stable upconversion sub-micron particles of La2O2S co-doped with Yb3+/Ho3+ and Yb3+/Tm3+ were synthesized and characterized. Different concentrations of Yb3+/Ho3+ and Yb3+/Tm3+ were successfully incorporated into the hexagonal crystal structure of lanthanum oxysulfide using the optimized solution combustion synthesis method with urea as a fuel. Sub-micron particles of less than 50 nm in diameter showed the typical upconversion photoluminescence when exited by 980 nm laser. The highest PL intensities were obtained in La2O2S co-doped with 8 wt% Yb and 1.5 wt% Ho, or in case of La2O2S:Yb3+/Tm3+ with 4 wt% Yb and 0.5 wt% Tm. The CIE 1976 chromaticity coordinates of Ho3+ photoluminescence emission are (0.119, 0.581), with color purity of 98.7 %. The chromaticity of upconversion emission was invariant to doping concentrations.
T2 - Optical Materials
T1 - Upconversion photoluminescence of sub-micron lanthanum oxysulfide particles co-doped with Yb3+/Ho3+ and Yb3+/Tm3+ synthesized by optimized combustion technique
VL - 120
SP - 111417
DO - 10.1016/j.optmat.2021.111417
ER -
@article{
author = "Ćirić, Aleksandar and Sekulić, Milica and Shah, Kevil and Chakrabarty, Bishwajit S. and Dramićanin, Miroslav",
year = "2021",
abstract = "Upconversion sub-micron particles are one of the most perspective materials due to their wide application range, the most important being in the bio-medicinal field where they can be used for labeling, sensing, treatment or drug delivery. Chemically stable upconversion sub-micron particles of La2O2S co-doped with Yb3+/Ho3+ and Yb3+/Tm3+ were synthesized and characterized. Different concentrations of Yb3+/Ho3+ and Yb3+/Tm3+ were successfully incorporated into the hexagonal crystal structure of lanthanum oxysulfide using the optimized solution combustion synthesis method with urea as a fuel. Sub-micron particles of less than 50 nm in diameter showed the typical upconversion photoluminescence when exited by 980 nm laser. The highest PL intensities were obtained in La2O2S co-doped with 8 wt% Yb and 1.5 wt% Ho, or in case of La2O2S:Yb3+/Tm3+ with 4 wt% Yb and 0.5 wt% Tm. The CIE 1976 chromaticity coordinates of Ho3+ photoluminescence emission are (0.119, 0.581), with color purity of 98.7 %. The chromaticity of upconversion emission was invariant to doping concentrations.",
journal = "Optical Materials",
title = "Upconversion photoluminescence of sub-micron lanthanum oxysulfide particles co-doped with Yb3+/Ho3+ and Yb3+/Tm3+ synthesized by optimized combustion technique",
volume = "120",
pages = "111417",
doi = "10.1016/j.optmat.2021.111417"
}
Ćirić, A., Sekulić, M., Shah, K., Chakrabarty, B. S.,& Dramićanin, M.. (2021). Upconversion photoluminescence of sub-micron lanthanum oxysulfide particles co-doped with Yb3+/Ho3+ and Yb3+/Tm3+ synthesized by optimized combustion technique. in Optical Materials, 120, 111417.
https://doi.org/10.1016/j.optmat.2021.111417
Ćirić A, Sekulić M, Shah K, Chakrabarty BS, Dramićanin M. Upconversion photoluminescence of sub-micron lanthanum oxysulfide particles co-doped with Yb3+/Ho3+ and Yb3+/Tm3+ synthesized by optimized combustion technique. in Optical Materials. 2021;120:111417.
doi:10.1016/j.optmat.2021.111417 .
Ćirić, Aleksandar, Sekulić, Milica, Shah, Kevil, Chakrabarty, Bishwajit S., Dramićanin, Miroslav, "Upconversion photoluminescence of sub-micron lanthanum oxysulfide particles co-doped with Yb3+/Ho3+ and Yb3+/Tm3+ synthesized by optimized combustion technique" in Optical Materials, 120 (2021):111417,
https://doi.org/10.1016/j.optmat.2021.111417 . .
