Laser-Induced Copper Deposition from Solution: Removing the Thermodynamic Restrictions

2014 ◽  
Vol 893 ◽  
pp. 45-51
Author(s):  
Sergey V. Safonov ◽  
Sergey A. Fateev ◽  
Lev S. Logunov ◽  
Evgeniia M. Khairullina ◽  
Vladimir.A. Kochemirovsky
Keyword(s):  
Glass Ceramic ◽  
Reducing Agents ◽  
High Conductivity ◽  
Copper Deposition ◽  
Hydroxyl Groups ◽  
Sensor Applications ◽  
Dielectric Surfaces ◽  
Ceramic Surfaces ◽  
Thermodynamic Restrictions

s. The study showed that organic alcohols with 1,2,3,5,6 hydroxyl groups can be used as reducing agents for laser-induced copper deposition from solutions (LCLD).Multiatomic alcohols, sorbitol, xylitol, and glycerol, are shown to be effective reducing agents for performing LCLD at glass-ceramic surfaces unless they are weak reductants. Hypothesis of 2-photon photoeffect during laser induced copper deposition was discussed. Using the described dechnique one can obtain high-conductivity copper micro wires on dielectric surfaces for microelectronics and sensor applications

scholarly journals Laser-induced copper deposition with weak reducing agents

2013 ◽  
Author(s):  
V. A. Kochemirovsky ◽  
S. A. Fateev ◽  
L. S. Logunov ◽  
I. I. Tumkin ◽  
S. V. Safonov ◽  
...  
Keyword(s):  
Reducing Agents ◽  
Copper Deposition

Synthesis of Silver Nanoparticles Using o-Hydroxybenzoic, p-Hydroxybenzoic, and o,p-Dihydroxybenzoic Acids as Reducing Agents

2017 ◽  
Vol 901 ◽  
pp. 26-31 ◽  
Author(s):  
Dian Susanthy ◽  
Fadliah ◽  
Endang Tri Wahyuni ◽  
Sri Juari Santosa
Keyword(s):  
Particle Size ◽  
Silver Nanoparticles ◽  
Reducing Agents ◽  
Reducing Agent ◽  
Para Position ◽  
Hydroxyl Groups ◽  
Hydroxybenzoic Acid ◽  
Dihydroxybenzoic Acid ◽  
Transmission Electron ◽  
Shape And Size

Synthesis of silver nanoparticles (AgNPs) by reduction of AgNO3 with o-hydroxybenzoic, p-hydroxybenzoic and o,p-dihydroxybenzoic acids as reducing agents was investigated. This research was conducted to determine the effect of the position and number of hydroxyl groups towards the size, shape and stability of the resulted AgNPs. Surface Plasmon Resonance (SPR) of AgNPs was characterized by UV/Vis spectrophotometer, the shape and size of AgNPs was determined by Transmission Electron Microscope (TEM). The results showed that the reducing agent that has substituents in the para position (p-hydroxybenzoic acid) has the higher reduction ability than the others. AgNPs were yielded by all types of reducing agents in alkaline system. Reducing agents which have greater number of substituents (o,p-dihydroxybenzoic acid) could produce AgNPs with smaller concentration of AgNO3 than the others. AgNPs that was produced by reducing agent having substituents on the para position (p-hydroxybenzoic acid) was more stable and smaller particle size, i.e. 34 ± 1.78 nm than reducing agent that has substituent on the ortho para positions (with particle size 45 + 3.67 nm) and ortho positions (with particle size 70 ± 4.96 nm).

scholarly journals Amphiphilic Poly(vinyl Alcohol) Copolymers Designed for Optical Sensor Applications—Synthesis and Properties

Coatings ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 460 ◽  
Author(s):  
Katerina Lazarova ◽  
Silvia Bozhilova ◽  
Christo Novakov ◽  
Darinka Christova ◽  
Tsvetanka Babeva
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Hydroxyl Groups ◽  
Silicon Substrates ◽  
Humidity Sensing ◽  
Sensor Applications ◽  
Glass Substrates ◽  
Copolymer Films ◽  
Hydrophobically Modified ◽  
Reflectance Measurements

A possible approach for enhancement of Poly(vinyl alcohol) (PVA) humidity-sensing performance using hydrophobically modified PVA copolymers is studied. Series of poly(vinylalcohol-co-vinylacetal)s (PVA–Ac) of acetal content in the range 18%–28% are synthesized by partial acetalization of hydroxyl groups of PVA with acetaldehyde and thin films are deposited by spin-coating using silicon substrates and glass substrates covered with Au–Pd thin film with thickness of 30 nm. Sensing properties are probed through reflectance measurements at relative humidity (RH) in the range 5%–95% RH. The influence of film thickness, post-deposition annealing temperature, and substrate type/configuration on hysteresis, sensitivity, and accuracy/resolution of humidity sensing is studied for partially acetalized PVA copolymer films, and comparison with neat PVA is made. Enhancement of sensing behavior through preparation of polymer–silica hybrids is demonstrated. The possibility of color sensing is discussed.

scholarly journals Influence of light activation of simplified adhesives on the shear bond strength of resin cements to a leucite-reinforced ceramic

2018 ◽  
Vol 12 (01) ◽  
pp. 003-006 ◽  
Author(s):  
Adilson Yoshio Furuse ◽  
Cassiana Koch Scotti ◽  
Alfredo Llerena-Icochea ◽  
Juliana Fraga Soares Bombonatti ◽  
Gisele Aihara Haragushiku ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Ceramic ◽  
Shear Bond Strength ◽  
Analysis Data ◽  
Resin Cement ◽  
Light Activation ◽  
Single Bond ◽  
Resin Cements ◽  
Ceramic Surfaces ◽  
Strength Tests

ABSTRACT Objective This study aims to evaluate the influence of the light activation of simplified adhesives on the shear bond strength of resin cements to a glass-ceramic. Three factors were evaluated: (1) cement in two levels (light cured and dual cured); (2) adhesive in two levels (Single Bond 2 and Single Bond Universal), and (3) light activation in two levels (yes or no). Materials and Methods Thirty-two 1-mm thick slices of a leucite-reinforced glass-ceramic (IPS Empress CAD) were divided into eight groups according to adhesive (Single Bond 2 or Single Bond Universal), cement (AllCem Veneer or AllCem), and light activation of the adhesive before application of the cement (yes or no). Ceramic surfaces were etched for 60 s with 5% hydrofluoric acid, and adhesives were applied. Four cement cylinders were made over each ceramic slice (n = 16) and then submitted to shear bond strength tests. Statistical Analysis Data were analyzed with three-way ANOVA and Tukey (⍺ = 0.05). Results: There were significant differences between adhesives (P < 0.0001) and no differences between cements (P = 0.0763) and light activation (P = 0.4385). No interaction effect occurred (P = 0.05). Single Bond 2 showed higher bond strength than Single Bond Universal. Conclusions: The light activation of the adhesive before the application of the resin cement did not influence the bond strength.

Study of acid/base properties of oxide, oxide glass, and glass-ceramic surfaces

1992 ◽  
Vol 154 (1) ◽  
pp. 174-183 ◽  
Author(s):  
Alain Carre ◽  
Françoise Roger ◽  
Christelle Varinot
Keyword(s):  
Glass Ceramic ◽  
Oxide Glass ◽  
Acid Base ◽  
Ceramic Surfaces ◽  
Base Properties

scholarly journals Effect of Surface Cleaning Regimen on Glass Ceramic Bond Strength

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 389 ◽  
Author(s):  
Barbara Lapinska ◽  
Jacek Rogowski ◽  
Joanna Nowak ◽  
Joseph Nissan ◽  
Jerzy Sokolowski ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Ceramic ◽  
Hydrofluoric Acid ◽  
Orthophosphoric Acid ◽  
Secondary Ion Mass Spectrometry ◽  
Surface Cleaning ◽  
Ceramic Surface ◽  
Ceramic Surfaces ◽  
Ceramic Bond ◽  
Cleaning Methods

This study investigated the effect of saliva contamination on chemical changes of ceramic surface as well as the influence of saliva cleaning methods on ceramic-resin bond strength. Saliva was used to contaminate leucite (LGC) and lithium disilicate (LDGC) glass ceramic surfaces. The following cleaning methods were tested: water spray, cleaning with orthophosphoric acid, universal cleaning paste, ultrasonic cleaning with water, re-etching with hydrofluoric acid. Non-contaminated ceramic sample served as control. Chemical analysis of ceramic surfaces was performed using time-of-flight secondary ion mass spectrometry (TOF-SIMS). Shear bond strength (SBS) of ceramics to resin material was tested after 24-hour water storage and after thermocycling. The most effective cleaning method of saliva-contaminated ceramic surface was cleaning LGC surface with orthophosphoric acid or re-etching the LDGC surface with hydrofluoric acid. The application of the following methods resulted in obtaining reliable bond strength.

Effect of the Crystalline Phase on the Brittleness Index of Glass Ceramic Surfaces

2009 ◽  
Vol 423 ◽  
pp. 55-60
Author(s):  
C. Gargori ◽  
R. Galindo ◽  
M.A. Tena ◽  
A. García ◽  
G. Monrós
Keyword(s):  
Wear Resistance ◽  
Glass Ceramic ◽  
Crystalline Phase ◽  
Tetragonal Zirconia ◽  
The Other ◽  
Brittleness Index ◽  
Ceramic Surface ◽  
Crystalline Phases ◽  
Ceramic Surfaces ◽  
High Roughness

Different crystalline phases (tetragonal zirconia, titanite, celsian, diopside, anortite, zircon, scheelite, casiterite, gahnite and spodumene) have been devitrificated into a transparent ceramic glaze by addition of oxides that acts as crystallisation agents. Microstructure, wear resistance and gloss of glass ceramic surface obtained on fired modified glazes are studied. All crystalline phases diminish the brittleness index of the original transparent glaze. Anortite stands out among reinforcing phases that produces dull surfaces associated with high roughness. On the other hand, zircon stands out among the phases that improve gloss surface together wear resistance.

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