scholarly journals Gold nanoparticles in a cholesteric liquid crystal matrix: self-organization and localized surface plasmon properties

2012 ◽  
Vol 22 (16) ◽  
pp. 7856 ◽  
Author(s):  
H. Ayeb ◽  
J. Grand ◽  
H. Sellame ◽  
S. Truong ◽  
J. Aubard ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Liquid Crystal ◽  
Surface Plasmon ◽  
Cholesteric Liquid Crystal ◽  
Self Organization ◽  
Localized Surface Plasmon ◽  
Crystal Matrix ◽  
Liquid Crystal Matrix

scholarly journals Cholesteric liquid crystal self-organization of gold nanoparticles

Soft Matter ◽  
2011 ◽  
Vol 7 (18) ◽  
pp. 8198 ◽  
Author(s):  
Rajaa Bitar ◽  
Gonzague Agez ◽  
Michel Mitov
Keyword(s):  
Gold Nanoparticles ◽  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Self Organization

scholarly journals ZnO1−xSxNanosphere in Ferroelectric Liquid Crystal Matrix: The Effect of Aggregation and Defects on the Dielectric and Electro-Optical Properties

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Dharmendra Pratap Singh ◽  
Swadesh Kumar Gupta ◽  
Rajiv Manohar
Keyword(s):  
Liquid Crystal ◽  
Dopant Concentration ◽  
Topological Defects ◽  
Localized Surface Plasmon ◽  
Smectic Layer ◽  
Ferroelectric Liquid Crystal ◽  
High Concentration ◽  
Crystal Matrix ◽  
Liquid Crystal Matrix ◽  
High Dopant Concentration

High concentration (5 wt %) ofZnO1−xSxnanosphere (NS) has been dispersed in the ferroelectric liquid crystal (FLC) to analyze the effect of high dopant concentration in the FLC matrix. The FLC molecules actively interact with the NS. The presence of NS enhances the photoluminescence of the pure FLC material due to the coupling of localized surface plasmon resonance from NS with FLC molecules. The high concentration of NS causes an aggregation in the FLC matrix and creates topological defects. The defects and aggregation cause the change in electro-optical and dielectric properties of the pure FLC material. The bigger size of NS as compared to the smectic layer separation causes the warping in the smectic layer. Semiconducting nature of NS also affects the conductivity of the pure FLC.

scholarly journals Formation of net-like patterns of gold nanoparticles in liquid crystal matrix at the air–water interface

2012 ◽  
Vol 14 (4) ◽  
Author(s):  
Jan Paczesny ◽  
Krzysztof Sozański ◽  
Igor Dzięcielewski ◽  
Andrzej Żywociński ◽  
Robert Hołyst
Keyword(s):  
Gold Nanoparticles ◽  
Liquid Crystal ◽  
Water Interface ◽  
Crystal Matrix ◽  
Air Water Interface ◽  
Liquid Crystal Matrix

scholarly journals Two helices from one chiral centre – self organization of disc shaped chiral nanoparticles

2021 ◽  
Author(s):  
Huanan Yu ◽  
Wentao Qu ◽  
Feng Liu ◽  
Georg H. Mehl
Keyword(s):  
Gold Nanoparticles ◽  
Liquid Crystal ◽  
Self Organization ◽  
Helix Formation ◽  
Chiral Nematic

Gold nanoparticles (NPs) were surface functionalized with hexanethiol groups and chiral nematic discogen ligands. A superlattice, liquid crystal behaviour and helix formation of the discs and a second helical organisation of the NPs were detected.

scholarly journals Nanocrystalline TiO2 Sensitive Layer for Plasmonic Hydrogen Sensing

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1490
Author(s):  
Enrico Gazzola ◽  
Michela Cittadini ◽  
Marco Angiola ◽  
Laura Brigo ◽  
Massimo Guglielmi ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon ◽  
Surface Plasmon Resonance Sensor ◽  
Sensitive Layer ◽  
Plasmonic Sensor ◽  
Nanocrystalline Tio2 ◽  
Resonance Sensor

Solution processed TiO2 anatase film was used as sensitive layer for H2 detection for two plasmonic sensor configurations: A grating-coupled surface plasmon resonance sensor and a localized surface plasmon resonance sensor with gold nanoparticles. The main purpose of this paper is to elucidate the different H2 response observed for the two types of sensors which can be explained considering the hydrogen dissociation taking place on TiO2 at high temperature and the photocatalytic activity of the gold nanoparticles.

Effects of Gold Nanoparticle Dispersion in a Chiral Liquid Crystal Matrix

2013 ◽  
Vol 572 (1) ◽  
pp. 59-65 ◽  
Author(s):  
M. Infusino ◽  
A. De Luca ◽  
F. Ciuchi ◽  
A. Ionescu ◽  
N. Scaramuzza ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Gold Nanoparticle ◽  
Nanoparticle Dispersion ◽  
Crystal Matrix ◽  
Chiral Liquid Crystal ◽  
Liquid Crystal Matrix
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