scholarly journals New glass-based materials, activated by the nanoparticles of noble metals for applications in photonics and sensorics.

2020 ◽  
Vol 11 (3-2020) ◽  
pp. 218-223
Author(s):  
G. Yu. Shakhgildyan ◽  
◽  
M. P. Vetchinnkov ◽  
A. S. Lipatiev ◽  
◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Luminescence Intensity ◽  
Noble Metals ◽  
Silver Oxide ◽  
Oxide Glasses ◽  
Direct Laser ◽  
Different Content ◽  
Nanoparticles Of Noble Metals

The paper considers properties of micron-sized regionsformed in the volume of oxide glasses with different content of silver oxide by direct laser writting. It has been shown the influence of the concentration of silver oxide, as well as parameters of laser irradiation on the size and luminescence intensity of the written microdomains.

Comparative evaluation of the potentiating effect of nanoparticles of noble metals in the antimicrobial compositions

2019 ◽  
pp. 5-15
Author(s):  
Konstantin I. Gurin ◽  
◽  
Valentina S. Menukhova ◽  
Ivan P. Pogorelskiy ◽  
Vladimir S. Lobastov ◽  
...  
Keyword(s):  
Comparative Evaluation ◽  
Noble Metals ◽  
Nanoparticles Of Noble Metals

Two- and Three-Dimensional Photonic Crystals Produced by Pulsed Laser Irradiation in Silver-Doped Glass

2004 ◽  
Vol 99-100 ◽  
pp. 65-72
Author(s):  
Yuri S. Kaganovsky ◽  
I. Antonov ◽  
M. Rosenbluh ◽  
J. Ihlemann ◽  
A.A. Lipovskii
Keyword(s):  
Photonic Crystals ◽  
Laser Irradiation ◽  
Uv Irradiation ◽  
Elevated Temperatures ◽  
Pulsed Laser ◽  
Silver Nanoclusters ◽  
Direct Laser ◽  
Doped Glass ◽  
2D And 3D ◽  
Pulsed Laser Irradiation

Two types of silver-doped glass were used for direct laser recording of 2D and 3D photonic crystals. The first contained a diffusion layer (20 microns thick) with embedded silver nanoclusters of 20-nm average radius. 2D and 3D photonic crystals of submicron lattice parameters were fabricated by nanosecond pulsed laser irradiation (l, = 355 nm) using four or five coherent intersecting beams. Under irradiation the clusters absorbing light energy are heated to high temperatures and become mobile due to the formation of liquid shells around them. Adjacent clusters move towards each other and towards the irradiated surface under local temperature gradients, form agglomerates and merge in periodically located "spots" of high light intensity in the interference field. The second type of glass, photosensitive to UV irradiation, contained in the bulk Ag+ and Ce3+ ions. Under UV irradiation excited electrons passed from Ce3+ to Ag+. The Ag atoms became neutral and under subsequent heat treatment of the glass at elevated temperatures have a tendency to form nanoclusters, thus “developing” the UV recorded patterns. Using nanosecond pulsed irradiation of 308 nm we have recorded 3D photonic crystals in the bulk of such glass.

Preparation of multifunctional porous carbon electrodes through direct laser writing on a phenolic resin film

2019 ◽  
Vol 7 (37) ◽  
pp. 21168-21175 ◽  
Author(s):  
Junbo Liu ◽  
Lijing Zhang ◽  
Cheng Yang ◽  
Shengyang Tao
Keyword(s):  
Laser Irradiation ◽  
Joule Heating ◽  
Porous Carbon ◽  
Phenolic Resin ◽  
Carbon Materials ◽  
Electrochemical Sensors ◽  
Carbon Electrodes ◽  
Direct Laser Writing ◽  
Direct Laser ◽  
Porous Carbon Electrodes

Multifunctional porous carbon materials prepared by laser irradiation on a phenolic resin were engineered into electrochemical sensors, microsupercapacitors, and Joule-heating devices.

Spectroscopy of thin polyaniline films deposited during chemical oxidation of aniline

2012 ◽  
Vol 66 (5) ◽  
Author(s):  
Miroslava Trchová ◽  
Zuzana Morávková ◽  
Ivana Šeděnková ◽  
Jaroslav Stejskal
Keyword(s):  
Conducting Polymer ◽  
Noble Metals ◽  
Film Growth ◽  
Chemical Oxidation ◽  
Present Review ◽  
Spectroscopic Methods ◽  
Polyaniline Film ◽  
Polyaniline Films ◽  
Nanoparticles Of Noble Metals

AbstractAny surface immersed in the aqueous reaction mixture used for the preparation of polyaniline becomes coated with a polyaniline film of submicrometre thickness. In this way, various materials can be modified by an overlayer of conducting polymer. The present review illustrates the role of infrared, Raman, and UV-VIS spectroscopies in the studies of polyaniline film growth. Spectroscopic methods are crucial in the evaluation of the performance of polyaniline films alone or in combination with nanoparticles of noble metals. The assessment of film ageing and stability can be followed conveniently by these methods. Carbonization of polyaniline films to nitrogen-containing carbon analogues is also discussed.

Luminescence intensity enhancement induced by laser irradiation in poly(vinyl alcohol) and poly(3-thiopheneacetic acid) blend

2002 ◽  
Vol 130 (2) ◽  
pp. 121-128 ◽  
Author(s):  
Jucimar M de Souza ◽  
Paulo N.M dos Anjos ◽  
Ernesto C Pereira ◽  
Yara G Gobato ◽  
Lindomar S dos Santos
Keyword(s):  
Laser Irradiation ◽  
Luminescence Intensity ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Intensity Enhancement
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