TY  - JOUR
AU  - Dinić, Ivana
AU  - Vuković, Marina
AU  - Nikolić, Marko G.
AU  - Tan, Zhenquan
AU  - Milošević, Olivera
AU  - Mančić, Lidija
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4242
AB  - The synthesis of lanthanide doped up-converting nanoparticles (UCNPs), whose morphological, structural, and luminescence properties are well suited for applications in optoelectronics, forensics, security, or biomedicine, is of tremendous significance. The most commonly used synthesis method comprises decomposition of organometallic compounds in an oxygen-free environment and subsequent infliction of a biocompatible layer on the particle surface. In this work, hydroxyl-carboxyl (- OH/ - COOH) type of chelating agents (citric acid and sodium citrate) are used in situ for the solvothermal synthesis of hydrophilic NaY0.5Gd0.3F4:Yb,Er UCNPs from rare earth nitrate salts and different fluoride sources (NaF, NH4F, and NH4HF2). X-ray powder diffraction showed crystallization of cubic and hexagonal NaY0.5Gd0.3F4:Yb,Er phases in nano- and micro-sized particles, respectively. The content of the hexagonal phase prevails in the samples obtained when Na-citrate is used, while the size and shape of the synthesized mesocrystals are affected by the choice of fluoride source used for precipitation. All particles are functionalized with citrate ligands and emit intense green light at 519 nm and 539 nm (2H11/2, 4S3/2 → 4I15/2) under near infrared light. The intensity of this emission is distressed by the change in the origin of phonon energy of the host matrix revealed by the change in the number of the excitation photons absorbed per emitted photon.
PB  - American Institute of Physics
T2  - Journal of Chemical Physics
T1  - Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect
VL  - 153
IS  - 8
SP  - 084706
DO  - 10.1063/5.0016559
ER  - 

@article{
author = "Dinić, Ivana and Vuković, Marina and Nikolić, Marko G. and Tan, Zhenquan and Milošević, Olivera and Mančić, Lidija",
year = "2020",
abstract = "The synthesis of lanthanide doped up-converting nanoparticles (UCNPs), whose morphological, structural, and luminescence properties are well suited for applications in optoelectronics, forensics, security, or biomedicine, is of tremendous significance. The most commonly used synthesis method comprises decomposition of organometallic compounds in an oxygen-free environment and subsequent infliction of a biocompatible layer on the particle surface. In this work, hydroxyl-carboxyl (- OH/ - COOH) type of chelating agents (citric acid and sodium citrate) are used in situ for the solvothermal synthesis of hydrophilic NaY0.5Gd0.3F4:Yb,Er UCNPs from rare earth nitrate salts and different fluoride sources (NaF, NH4F, and NH4HF2). X-ray powder diffraction showed crystallization of cubic and hexagonal NaY0.5Gd0.3F4:Yb,Er phases in nano- and micro-sized particles, respectively. The content of the hexagonal phase prevails in the samples obtained when Na-citrate is used, while the size and shape of the synthesized mesocrystals are affected by the choice of fluoride source used for precipitation. All particles are functionalized with citrate ligands and emit intense green light at 519 nm and 539 nm (2H11/2, 4S3/2 → 4I15/2) under near infrared light. The intensity of this emission is distressed by the change in the origin of phonon energy of the host matrix revealed by the change in the number of the excitation photons absorbed per emitted photon.",
publisher = "American Institute of Physics",
journal = "Journal of Chemical Physics",
title = "Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect",
volume = "153",
number = "8",
pages = "084706",
doi = "10.1063/5.0016559"
}

Dinić, I., Vuković, M., Nikolić, M. G., Tan, Z., Milošević, O.,& Mančić, L.. (2020). Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect. in Journal of Chemical Physics
American Institute of Physics., 153(8), 084706.
https://doi.org/10.1063/5.0016559

Dinić I, Vuković M, Nikolić MG, Tan Z, Milošević O, Mančić L. Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect. in Journal of Chemical Physics. 2020;153(8):084706.
doi:10.1063/5.0016559 .

Dinić, Ivana, Vuković, Marina, Nikolić, Marko G., Tan, Zhenquan, Milošević, Olivera, Mančić, Lidija, "Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect" in Journal of Chemical Physics, 153, no. 8 (2020):084706,
https://doi.org/10.1063/5.0016559 . .