Particle Size and Shell Thickness Dependence of the Light Intensity Enhancement in the Cap Layers of Ag, Au, Al and SiO2 @TiO2 Core-Shell Nanostructures

2018 ◽  
Vol 3 (11) ◽  
pp. 3141-3146
Author(s):  
Erdem B. Bascura ◽  
Ismail Karakurt
Keyword(s):  
Particle Size ◽  
Light Intensity ◽  
Shell Thickness ◽  
Thickness Dependence ◽  
Core Shell ◽  
Intensity Enhancement ◽  
Shell Nanostructures

Synthesis of Core–Shell Nanostructures of Co3O4@SiO2 with Controlled Shell Thickness (5–20 nm) and Hollow Shells of Silica

2011 ◽  
Vol 11 (4) ◽  
pp. 3405-3413 ◽  
Author(s):  
Sonalika Vaidya ◽  
Pallavi Thaplyal ◽  
K. V. Ramanujachary ◽  
S. E. Lofland ◽  
Ashok K. Ganguli
Keyword(s):  
Shell Thickness ◽  
Core Shell ◽  
Shell Nanostructures ◽  
20 Nm

Oxygen Reduction on Well-Defined Core−Shell Nanocatalysts: Particle Size, Facet, and Pt Shell Thickness Effects

2009 ◽  
Vol 131 (47) ◽  
pp. 17298-17302 ◽  
Author(s):  
Jia X. Wang ◽  
Hiromi Inada ◽  
Lijun Wu ◽  
Yimei Zhu ◽  
YongMan Choi ◽  
...  
Keyword(s):  
Particle Size ◽  
Oxygen Reduction ◽  
Shell Thickness ◽  
Core Shell

Effect of silica shell thickness of Fe3O4–SiOx core–shell nanostructures on MRI contrast

2013 ◽  
Vol 15 (3) ◽  
Author(s):  
Hrushikesh M. Joshi ◽  
Mrinmoy De ◽  
Felix Richter ◽  
Jiaqing He ◽  
P. V. Prasad ◽  
...  
Keyword(s):  
Shell Thickness ◽  
Silica Shell ◽  
Core Shell ◽  
Mri Contrast ◽  
Shell Nanostructures

Shell Thickness Dependence of the Plasmon-Induced Hot-Electron Injection Process in Au@CdS Core–Shell Nanocrystals

2021 ◽  
Vol 125 (36) ◽  
pp. 19906-19913
Author(s):  
Huifang Dong ◽  
Jingwen Feng ◽  
Jia Liu ◽  
Xiaodong Wan ◽  
Jiatao Zhang ◽  
...  
Keyword(s):  
Shell Thickness ◽  
Electron Injection ◽  
Thickness Dependence ◽  
Core Shell ◽  
Hot Electron ◽  
Injection Process ◽  
Hot Electron Injection

scholarly journals Synthesis and characterization of noble metal–titania core–shell nanostructures with tunable shell thickness

2017 ◽  
Vol 8 ◽  
pp. 2083-2093 ◽  
Author(s):  
Bartosz Bartosewicz ◽  
Marta Michalska-Domańska ◽  
Malwina Liszewska ◽  
Dariusz Zasada ◽  
Bartłomiej J Jankiewicz
Keyword(s):  
Noble Metal ◽  
Shell Thickness ◽  
Noble Metal Nanoparticles ◽  
Core Shell ◽  
Shell Nanostructures ◽  
Vis Spectroscopy ◽  
Metal Metal ◽  
Coating Method ◽  
Titania Coating

Core–shell nanostructures have found applications in many fields, including surface enhanced spectroscopy, catalysis and solar cells. Titania-coated noble metal nanoparticles, which combine the surface plasmon resonance properties of the core and the photoactivity of the shell, have great potential for these applications. However, the controllable synthesis of such nanostructures remains a challenge due to the high reactivity of titania precursors. Hence, a simple titania coating method that would allow better control over the shell formation is desired. A sol–gel based titania coating method, which allows control over the shell thickness, was developed and applied to the synthesis of Ag@TiO2 and Au@TiO2 with various shell thicknesses. The morphology of the synthesized structures was investigated using scanning electron microscopy (SEM). Their sizes and shell thicknesses were determined using tunable resistive pulse sensing (TRPS) technique. The optical properties of the synthesized structures were characterized using UV–vis spectroscopy. Ag@TiO2 and Au@TiO2 structures with shell thickness in the range of ≈40–70 nm and 90 nm, for the Ag and Au nanostructures respectively, were prepared using a method we developed and adapted, consisting of a change in the titania precursor concentration. The synthesized nanostructures exhibited significant absorption in the UV–vis range. The TRPS technique was shown to be a very useful tool for the characterization of metal–metal oxide core–shell nanostructures.

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