The red light emitting down-converting Ag@Y2O3:Eu3+ phosphor particles were synthesized by one-step ultrasonic spray pyrolysis and exposed further to the heat treatment at 1000°C (12h). A detailed investigation on structural and functional properties of the as-prepared and heat treated particles was conducted in a comparative manner. High-resolution transmission electron microscopy (HRTEM), X-ray powder diffraction (XRPD) and focus ion beam milling (FIB) revealed in a great consistency the poorly crystallized and porous nature of the as-prepared particles. Well-crystallized coarser primary nanocrystals of Y2O3:Eu3+and Ag, which are hierarchically organized in dense spherical Ag@Y2O3:Eu3+ phosphor particles, were obtained through the heat treatment. Along with the change of structural properties, down conversion (red luminescence at 612nm owing to the Eu3+5D0→7F2 electric dipole transition) and mechanical endurance were enhanced 4-fold and 5-fold via heat treatment, respectively. This c...omparative study implies a good correlation between mechanical and luminescence behavior of phosphors, both strongly influenced by the particles structural properties.
TY - JOUR
AU - Alkan, Gözde
AU - HakanYavas
AU - Göksel, Berfu
AU - Mančić, Lidija
AU - Friedrich, Bernd
AU - Milošević, Olivera
PY - 2019
UR - http://www.sciencedirect.com/science/article/pii/S2238785418306811
UR - https://dais.sanu.ac.rs/123456789/6953
AB - The red light emitting down-converting Ag@Y2O3:Eu3+ phosphor particles were synthesized by one-step ultrasonic spray pyrolysis and exposed further to the heat treatment at 1000°C (12h). A detailed investigation on structural and functional properties of the as-prepared and heat treated particles was conducted in a comparative manner. High-resolution transmission electron microscopy (HRTEM), X-ray powder diffraction (XRPD) and focus ion beam milling (FIB) revealed in a great consistency the poorly crystallized and porous nature of the as-prepared particles. Well-crystallized coarser primary nanocrystals of Y2O3:Eu3+and Ag, which are hierarchically organized in dense spherical Ag@Y2O3:Eu3+ phosphor particles, were obtained through the heat treatment. Along with the change of structural properties, down conversion (red luminescence at 612nm owing to the Eu3+5D0→7F2 electric dipole transition) and mechanical endurance were enhanced 4-fold and 5-fold via heat treatment, respectively. This comparative study implies a good correlation between mechanical and luminescence behavior of phosphors, both strongly influenced by the particles structural properties.
PB - Elsevier
T2 - Journal of Materials Research and Technology
T1 - Deep insight into the photoluminescent monocrystalline particles: Heat-treatment, structure, mechanisms and mechanics
SP - 2466
EP - 2472
VL - 8
IS - 2
DO - 10.1016/j.jmrt.2018.10.013
UR - https://hdl.handle.net/21.15107/rcub_dais_6953
ER -
@article{
author = "Alkan, Gözde and HakanYavas and Göksel, Berfu and Mančić, Lidija and Friedrich, Bernd and Milošević, Olivera",
year = "2019",
abstract = "The red light emitting down-converting Ag@Y2O3:Eu3+ phosphor particles were synthesized by one-step ultrasonic spray pyrolysis and exposed further to the heat treatment at 1000°C (12h). A detailed investigation on structural and functional properties of the as-prepared and heat treated particles was conducted in a comparative manner. High-resolution transmission electron microscopy (HRTEM), X-ray powder diffraction (XRPD) and focus ion beam milling (FIB) revealed in a great consistency the poorly crystallized and porous nature of the as-prepared particles. Well-crystallized coarser primary nanocrystals of Y2O3:Eu3+and Ag, which are hierarchically organized in dense spherical Ag@Y2O3:Eu3+ phosphor particles, were obtained through the heat treatment. Along with the change of structural properties, down conversion (red luminescence at 612nm owing to the Eu3+5D0→7F2 electric dipole transition) and mechanical endurance were enhanced 4-fold and 5-fold via heat treatment, respectively. This comparative study implies a good correlation between mechanical and luminescence behavior of phosphors, both strongly influenced by the particles structural properties.",
publisher = "Elsevier",
journal = "Journal of Materials Research and Technology",
title = "Deep insight into the photoluminescent monocrystalline particles: Heat-treatment, structure, mechanisms and mechanics",
pages = "2466-2472",
volume = "8",
number = "2",
doi = "10.1016/j.jmrt.2018.10.013",
url = "https://hdl.handle.net/21.15107/rcub_dais_6953"
}
Alkan, G., HakanYavas, Göksel, B., Mančić, L., Friedrich, B.,& Milošević, O.. (2019). Deep insight into the photoluminescent monocrystalline particles: Heat-treatment, structure, mechanisms and mechanics. in Journal of Materials Research and Technology
Elsevier., 8(2), 2466-2472.
https://doi.org/10.1016/j.jmrt.2018.10.013
https://hdl.handle.net/21.15107/rcub_dais_6953
Alkan G, HakanYavas, Göksel B, Mančić L, Friedrich B, Milošević O. Deep insight into the photoluminescent monocrystalline particles: Heat-treatment, structure, mechanisms and mechanics. in Journal of Materials Research and Technology. 2019;8(2):2466-2472.
doi:10.1016/j.jmrt.2018.10.013
https://hdl.handle.net/21.15107/rcub_dais_6953 .
Alkan, Gözde, HakanYavas, Göksel, Berfu, Mančić, Lidija, Friedrich, Bernd, Milošević, Olivera, "Deep insight into the photoluminescent monocrystalline particles: Heat-treatment, structure, mechanisms and mechanics" in Journal of Materials Research and Technology, 8, no. 2 (2019):2466-2472,
https://doi.org/10.1016/j.jmrt.2018.10.013 .,
https://hdl.handle.net/21.15107/rcub_dais_6953 .
