Index-Matched Composite Colloidal Crystals of Core–Shell Particles for Strong Structural Colors and Optical Transparency

2021 ◽  
Author(s):  
Nguyen Xuan Viet Lan ◽  
Jeongbin Moon ◽  
Tae Hui Kang ◽  
Ke Wang ◽  
Hong-Gyu Park ◽  
...  
Keyword(s):  
Colloidal Crystals ◽  
Optical Transparency ◽  
Core Shell ◽  
Structural Colors ◽  
Shell Particles

scholarly journals Preparation, Properties, and Self-Assembly Behavior of PTFE-Based Core-Shell Nanospheres

2012 ◽  
Vol 2012 ◽  
pp. 1-15 ◽  
Author(s):  
Katia Sparnacci ◽  
Diego Antonioli ◽  
Simone Deregibus ◽  
Michele Laus ◽  
Giampaolo Zuccheri ◽  
...  
Keyword(s):  
Particle Size ◽  
Self Assembly ◽  
Colloidal Crystal ◽  
Colloidal Crystals ◽  
Direct Consequence ◽  
Core Shell ◽  
Precise Control ◽  
Assembly Behavior ◽  
Shell Particles ◽  
High Degree

Nanosized PTFE-based core-shell particles can be prepared by emulsifier-free seed emulsion polymerization technique starting from spherical or rod-like PTFE seeds of different size. The shell can be constituted by the relatively high Tg polystyrene and polymethylmethacrylate as well as by low Tg polyacrylic copolymers. Peculiar thermal behavior of the PTFE component is observed due to the high degree of PTFE compartmentalization. A very precise control over the particle size can be exerted by properly adjusting the ratio between the monomers and the PTFE seed. In addition, the particle size distribution self-sharpens as the ratio monomer/PTFE increases. Samples with uniformity ratios suited to build 2D and 3D colloidal crystals are easily prepared. In particular, 2D colloidal crystal of spheres leads to very small 2D nanostructuration, useful for the preparation of masks with a combination of nanosphere lithography and reactive ion etching. 3D colloidal crystals were also obtained featuring excellent opal quality, which is a direct consequence of the monodispersity of colloids used for their growth.

scholarly journals Disordered packings of core-shell particles with angle-independent structural colors

2012 ◽  
Vol 2 (10) ◽  
pp. 1343 ◽  
Author(s):  
Sofia Magkiriadou ◽  
Jin-Gyu Park ◽  
Young-Seok Kim ◽  
Vinothan N. Manoharan
Keyword(s):  
Core Shell ◽  
Structural Colors ◽  
Shell Particles

Anomalous Reflection from Colloidal Crystals of Core–Shell Particles

2006 ◽  
Vol 45 (10A) ◽  
pp. 7729-7731 ◽  
Author(s):  
Masashi Harada ◽  
Masahiko Ishii ◽  
Hiroshi Nakamura
Keyword(s):  
Colloidal Crystals ◽  
Core Shell ◽  
Anomalous Reflection ◽  
Shell Particles

Redox-Responsive 2-Aminoanthraquinone Core–Shell Particles for Structural Colors and Carbon Capture

2021 ◽  
Author(s):  
Tamara Winter ◽  
Martin Bitsch ◽  
Frank Müller ◽  
Sahag Voskian ◽  
T. Alan Hatton ◽  
...  
Keyword(s):  
Carbon Capture ◽  
Core Shell ◽  
Structural Colors ◽  
Redox Responsive ◽  
Shell Particles

Well-defined colloidal crystal films from the 2D self-assembly of core–shell semi-soft nanoparticles

2015 ◽  
Vol 6 (41) ◽  
pp. 7297-7307 ◽  
Author(s):  
Hadi Sabouri ◽  
Kohji Ohno ◽  
Sébastien Perrier
Keyword(s):  
Self Assembly ◽  
Colloidal Crystal ◽  
Colloidal Crystals ◽  
Core Shell ◽  
Polymer Shell ◽  
Crystal Films ◽  
Silica Core ◽  
Shell Particles ◽  
Soft Nanoparticles ◽  
Core Polymer

Silica core–polymer shell particles are obtained from surface mediated RAFT polymerisation and assembled into ordered 2D colloidal crystals.

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.

Titanium Dioxide−Polymer Core–Shell Particles Dispersions as Electronic Inks for Electrophoretic Displays

2008 ◽  
Vol 20 (4) ◽  
pp. 1292-1298 ◽  
Author(s):  
M. P. L. Werts ◽  
M. Badila ◽  
C. Brochon ◽  
A. Hébraud ◽  
G. Hadziioannou
Keyword(s):  
Titanium Dioxide ◽  
Core Shell ◽  
Shell Particles
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