Deep insight into the photoluminescent monocrystalline particles: Heat-treatment, structure, mechanisms and mechanics
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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.
Keywords:
nanoindentation / photoluminescence / rare earth oxides / silver nanoparticlesSource:
Journal of Materials Research and Technology, 2019, 8, 2, 2466-2472Publisher:
- Elsevier
Projects:
DOI: 10.1016/j.jmrt.2018.10.013
ISSN: 2238-7854
WoS: 000469405800091
Scopus: 2-s2.0-85059779844
URI
http://www.sciencedirect.com/science/article/pii/S2238785418306811http://dais.sanu.ac.rs/123456789/6953
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 - http://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 ER -
@article{ author = "Alkan, Gözde and HakanYavas and Göksel, Berfu and Mančić, Lidija and Friedrich, Bernd and Milošević, Olivera", year = "2019", url = "http://www.sciencedirect.com/science/article/pii/S2238785418306811, http://dais.sanu.ac.rs/123456789/6953", 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" }
Alkan G, HakanYavas, Göksel B, Mančić L, Friedrich B, Milošević O. Deep insight into the photoluminescent monocrystalline particles: Heat-treatment, structure, mechanisms and mechanics. Journal of Materials Research and Technology. 2019;8(2):2466-2472
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. Journal of Materials Research and TechnologyElsevier., 8(2), 2466-2472. https://doi.org/10.1016/j.jmrt.2018.10.013
Alkan Gözde, HakanYavas, Göksel Berfu, Mančić Lidija, Friedrich Bernd, Milošević Olivera, "Deep insight into the photoluminescent monocrystalline particles: Heat-treatment, structure, mechanisms and mechanics" 8, no. 2 (2019):2466-2472, https://doi.org/10.1016/j.jmrt.2018.10.013 .