Impact of LaF3 and silica shell formation on the crystal, optical and photo-luminescence properties of LaF3:Ce/Tb nanoparticles

2017 ◽  
Vol 1 (4) ◽  
pp. 727-734 ◽  
Author(s):  
Anees A. Ansari ◽  
Monika Rai ◽  
S. B. Rai
Keyword(s):  
Epitaxial Growth ◽  
Amorphous Silica ◽  
Photo Luminescence ◽  
Silica Shell ◽  
Polyol Process ◽  
Luminescence Properties ◽  
Shell Formation ◽  
Enhanced Photoluminescence ◽  
High Dispersibility

A new LaF3:Ce/Tb nanoparticle designed via a polyol process shows high dispersibility in aqueous solvents with enhanced photoluminescence. The epitaxial growth of an inert LaF3 shell and further amorphous silica, respectively, enhanced their optical and luminescence properties, which is highly usable in luminescence biolabeling, optical bio-probes, etc.

Silica Shell Formation in Synchronously Dividing Diatoms

1966 ◽  
pp. 169-188 ◽  
Author(s):  
Joyce C. Lewin ◽  
Bernhard E. Reimann ◽  
William F. Busby ◽  
Benjamin E. Volcani
Keyword(s):  
Silica Shell ◽  
Shell Formation

Studies on the biochemistry and fine structure of silica shell formation in diatoms

Planta ◽  
1976 ◽  
Vol 130 (2) ◽  
pp. 159-167 ◽  
Author(s):  
W. M. Darley ◽  
C. W. Sullivan ◽  
B. E. Volcani
Keyword(s):  
Fine Structure ◽  
Silica Shell ◽  
Shell Formation

Improvement of monodispersity and shape symmetry of silica shell for PbS quantum dots by introducing surface silanization and adjusting reverse micelle size

2021 ◽  
Author(s):  
Kohki MUKAI ◽  
Kosuke Ikeda ◽  
Reo Hatta
Keyword(s):  
Reverse Micelle ◽  
Reverse Micelles ◽  
Silica Coating ◽  
Silica Shell ◽  
Raw Material ◽  
Shell Formation ◽  
Shell Size ◽  
Surface Control ◽  
Micelle Size ◽  
Pbs Quantum Dots

Abstract Increasing the thickness of the quantum dot silica coating layer reduces monodispersity and shape symmetry. This paper reports three effective ways to solve this problem and achieve a large silica-coated QDs, i.e., proper silanization on the QD surface, control of reverse micelle size by adjusting the amount of QD solvent, and two-step formation of silica shell. Proper substitution of ligands on the QD surface in the early stages of silica shell formation was important for uniform coating reaction. An amount of toluene as QD solvent determined the size of reverse micelles during the silica shell formation. There was an optimum combination of inverse micelle size and silica shell size to obtain silica-coated QDs with good monodispersity and high shape symmetry. We succeeded in growing the thick silica shell with expanding reverse micelle size by additionally supplying toluene with the raw material using the optimum silica-coated QDs as growth nucleus

Studies on the biochemistry and fine structure of silica-shell formation in diatoms

Planta ◽  
1968 ◽  
Vol 82 (3) ◽  
pp. 280-292 ◽  
Author(s):  
J. Coombs ◽  
B. E. Volcani
Keyword(s):  
Fine Structure ◽  
Silica Shell ◽  
Shell Formation

Strategic harmonization of silica shell stabilization with Pt embedding on AuNPs for efficient artificial photosynthesis

2020 ◽  
Vol 8 (11) ◽  
pp. 5734-5743 ◽  
Author(s):  
Dinesh Kumar ◽  
Chan Hee Park ◽  
Cheol Sang Kim
Keyword(s):  
Amorphous Silica ◽  
Artificial Photosynthesis ◽  
Pt Nanoparticles ◽  
Silica Shell ◽  
Silica Layer ◽  
Plasmonic Nanostructure

The Pt nanoparticles embedding on AuNPs through amorphous silica layer stabilizing plasmonic nanostructure for efficient CO2 photoreduction.

Enhanced photoluminescence from Ge/SiGe quantum wells by epitaxial growth induced strain

2014 ◽  
Author(s):  
Xiaochi Chen ◽  
Yijie Huo ◽  
Edward T. Fei ◽  
Ching-Ying Lu ◽  
Kai Zang ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Epitaxial Growth ◽  
Enhanced Photoluminescence ◽  
Sige Quantum Wells

scholarly journals Morphology controlling method for amorphous silica nanoparticles and jellyfish-like nanowires and their luminescence properties

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Haitao Liu ◽  
Zhaohui Huang ◽  
Juntong Huang ◽  
Song Xu ◽  
Minghao Fang ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Amorphous Silica ◽  
Luminescence Properties
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