LiYF4:Yb/LiYF4 and LiYF4:Yb,Er/LiYF4 core/shell nanocrystals with luminescence decay times similar to YLF laser crystals and the upconversion quantum yield of the Yb,Er doped nanocrystals
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DOI: 10.1007/s12274-020-3116-y
Abstract: We developed a procedure to prepare luminescent LiYF 4 :Yb/LiYF 4 and LiYF 4 :Yb,Er/LiYF 4 core/shell nanocrystals with a size of approximately 40 nm revealing luminescence decay times of the dopant ions that approach… read more here.
Keywords: liyf; core shell; liyf4 liyf4; shell nanocrystals ... See more keywords
Quantification of Material Gradients in Core/Shell Nanocrystals Using EXAFS Spectroscopy.
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DOI: 10.1021/acs.nanolett.9b04143
Abstract: Core/shell nanocrystals with a graded interface between core and shell exhibit improved opto-electronic properties compared to particles with an abrupt, sharp interface, as material gradients mitigate interfacial defects and define the shape of the confinement… read more here.
Keywords: material gradients; core shell; quantification material; shell nanocrystals ... See more keywords
Dielectric and electro-optical studies of Au/SnO2 core/shell nanocrystals incorporated ferroelectric liquid crystal
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DOI: 10.1080/02678292.2020.1794066
Abstract: ABSTRACT We study the effect of Au/SnO2 core/shell nanocrystals (NCs) on dielectric and electro-optical parameters of a ferroelectric liquid crystal (FLC) material, namely KCFLC 7S. The FLC composites are characterised through polarising optical microscope (POM),… read more here.
Keywords: core shell; electro optical; dielectric electro; shell nanocrystals ... See more keywords