Rapid microwave synthesis and photoluminescence properties of rare earth-based coordination polymer core-shell particles

2016 ◽  
Vol 62 ◽  
pp. 538-542 ◽  
Author(s):  
Shuang Huang ◽  
Hualan Xu ◽  
Mengya Wang ◽  
Shengliang Zhong ◽  
Chenghui Zeng
Keyword(s):  
Rare Earth ◽  
Coordination Polymer ◽  
Microwave Synthesis ◽  
Core Shell ◽  
Photoluminescence Properties ◽  
Shell Particles

Synthesis and Photoluminescence Properties of Monodisperse Spherical SiO2@Lu2O3: Eu3+ Particles with Core-Shell Structure

2014 ◽  
Vol 1004-1005 ◽  
pp. 389-392
Author(s):  
Huan Wang
Keyword(s):  
Smooth Surface ◽  
Sol Gel ◽  
Spherical Shape ◽  
Core Shell ◽  
Narrow Size Distribution ◽  
Photoluminescence Properties ◽  
The Core ◽  
Sol Gel Process ◽  
Core Shell Structure ◽  
Shell Particles

Spherical submicron SiO2 particles have been coated with luminescent Lu2O3: Eu3+ layers by a Pechini sol-gel process, resulting in the formation of SiO2@Lu2O3: Eu3+ core-shell particles(300, 500 nm). The obtained core–shell phosphors have perfect spherical shape with narrow size distribution, smooth surface and non-agglomeration. The thickness of shells could be easily controlled by changing the number of deposition cycles (50 nm for four deposition cycles). Under the excitation of ultraviolet, the Eu3+ ion mainly shows its characteristic emissions in the core-shell particles from Lu2O3: Eu3+) shells. The PL intensity of Eu3+ increases with the number of coating cycles.

Sol–Gel Fabrication and Photoluminescence Properties of SiO2 @ Gd2O3: Eu3+ Core–Shell Particles

2006 ◽  
Vol 6 (5) ◽  
pp. 1416-1422 ◽  
Author(s):  
G. Z. Li ◽  
M. Yu ◽  
Z. L. Wang ◽  
J. Lin ◽  
R. S. Wang ◽  
...  
Keyword(s):  
Sol Gel ◽  
Core Shell ◽  
Photoluminescence Properties ◽  
Shell Particles

Magnetic Properties of Fe3O4/CoFe2O4 Composite Nanoparticles with Core/Shell Architecture

2020 ◽  
Vol 65 (10) ◽  
pp. 904
Author(s):  
V. O. Zamorskyi ◽  
Ya. M. Lytvynenko ◽  
A. M. Pogorily ◽  
A. I. Tovstolytkin ◽  
S. O. Solopan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Spinel Ferrite ◽  
Composite Nanoparticles ◽  
Core Shell ◽  
Cofe2o4 Nanoparticles ◽  
Core Diameter ◽  
The Core ◽  
Shell Particles ◽  
Interface Parameters ◽  
Shell Composite

Magnetic properties of the sets of Fe3O4(core)/CoFe2O4(shell) composite nanoparticles with a core diameter of about 6.3 nm and various shell thicknesses (0, 1.0, and 2.5 nm), as well as the mixtures of Fe3O4 and CoFe2O4 nanoparticles taken in the ratios corresponding to the core/shell material contents in the former case, have been studied. The results of magnetic research showed that the coating of magnetic nanoparticles with a shell gives rise to the appearance of two simultaneous effects: the modification of the core/shell interface parameters and the parameter change in both the nanoparticle’s core and shell themselves. As a result, the core/shell particles acquire new characteristics that are inherent neither to Fe3O4 nor to CoFe2O4. The obtained results open the way to the optimization and adaptation of the parameters of the core/shell spinel-ferrite-based nanoparticles for their application in various technological and biomedical domains.

Rational manufacture of yolk–shell and core–shell metal oxide double layers from silica-templated coordination polymer double layers

2021 ◽  
Vol 5 (8) ◽  
pp. 3404-3412
Author(s):  
Jian Yeo ◽  
Gihyun Lee ◽  
Sujeong Lee ◽  
Moonhyun Oh
Keyword(s):  
Coordination Polymer ◽  
Metal Oxide ◽  
Double Layers ◽  
Core Shell ◽  
Hybrid Metal Oxide

Yolk–shell and core–shell hybrid metal oxide double layers with varied metal compositions are rationally constructed via simple calcination of silica-templated coordination polymer double layers.

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