scholarly journals Nobel Ag-Cu Ion-Exchange Bimetallic Nanoclusters Formation by Tailored Gold Ion (Au2+) Implanted Materials RBS and Optical Study

2021 ◽  
Author(s):  
A. C. Ferdinand ◽  
D. Manikandan ◽  
P. Manikandan ◽  
R. Gaur ◽  
P. S. Raman ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Soda Lime ◽  
Metal Species ◽  
Soda Lime Glass ◽  
Core Shell ◽  
The Novel ◽  
Tandem Accelerator ◽  
Shell Nanostructures ◽  
Bimetallic Nanoclusters ◽  
First Time

Abstract Technologically driven some glass materials are containing metal clusters have attracted quite attention both in cluster research and in possible futuristic applications of such nanoclusters for magnetic or optoelectronic purposes. In this regard, formation of bimetallic alloys and core–shell nanostructures inside a soda-lime glass were prepared by simple ion-exchange methods and further studied by the optical absorption (OA) properties. Further, we made an attempt for the first time the novel route for the synthesis of bimetallic nanoclusters, gold in various doses was directly implanted in a plain soda-lime glass as well as in a copper and silver ion-exchanged soda-lime glass using the tandem accelerator anticipating the core–shell or alloys phase between the metal species. Also, the post implanted gold (Au+) metal ions were investigated by Rutherford backscattering spectroscopy (RBS) analysis performed on the Cu and Ag ion-exchanged samples to confirm the presence of bimetallic clusters formed by ion-exchange during implantation.

scholarly journals Peculiarities of ion-exchange in poled glasses

2021 ◽  
Vol 2086 (1) ◽  
pp. 012152
Author(s):  
E A Lubyankina ◽  
D V Raskhodchikov ◽  
E S Babich ◽  
V P Kaasik ◽  
A A Lipovskii
Keyword(s):  
Heat Treatment ◽  
Ion Exchange ◽  
Subsurface Layer ◽  
Silver Ions ◽  
Soda Lime ◽  
Soda Lime Glass ◽  
Air Atmosphere ◽  
Corona Poling ◽  
Thermally Poled ◽  
First Time

Abstract We demonstrate for the first time that the results of ion exchange processing of thermally poled soda-lime glass essentially depend on the poling conditions. In particular, the processing of vacuum-poled soda-lime glass in silver-sodium nitrate melt results in the diffusion and reduction of silver ions followed by clustering silver nanoparticles in the subsurface layer of the glass after either ion-exchange or additional heat treatment of the ion-exchanged samples. Poling in air atmosphere with deposited gold film anode prevents silver ions penetration in the glass, but electric field stimulated diffusion of gold in this configuration leads to the formation of gold nanoparticles in the glass after heat treatment. It is also shown that corona poling of the glass in air atmosphere does not completely block silver penetration.

Cu-Na Ion Exchange Soda-lime Glass Planar Waveguides and Their Photoluminescence

2009 ◽  
Author(s):  
Yunqiang Ti ◽  
Xin He ◽  
Jian Zhang ◽  
Jie Zheng ◽  
Pengfei Wang ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Soda Lime ◽  
Planar Waveguides ◽  
Soda Lime Glass

2D-patterning of self-assembled silver nanoisland films

2016 ◽  
Vol 186 ◽  
pp. 107-121 ◽  
Author(s):  
Semen Chervinskii ◽  
Igor Reduto ◽  
Alexander Kamenskii ◽  
Ivan S. Mukhin ◽  
Andrey A. Lipovskii
Keyword(s):  
Ion Exchange ◽  
Subsurface Layer ◽  
Silver Ions ◽  
Soda Lime ◽  
Intermediate Stage ◽  
Soda Lime Glass ◽  
Ion Distribution ◽  
Thermal Poling ◽  
Reducing Atmosphere ◽  
Or Groups

The paper is dedicated to the recently developed by the authors technique of silver nanoisland growth, allowing self-arrangement of 2D-patterns of nanoislands. The technique employs silver out-diffusion from ion-exchanged glass in the course of annealing in hydrogen. To modify the silver ion distribution in the exchanged soda-lime glass we included the thermal poling of the ion-exchanged glass with a profiled electrode as an intermediate stage of the process. The resulting consequence consists of three steps: (i) during the ion exchange of the glass in the AgxNa1−xNO3(x= 0.01–0.15) melt we enrich the subsurface layer of the glass with silver ions; (ii) under the thermal poling, the electric field displaces these ions deeper into the glass under the 2D profiled anodic electrode, the displacement is smaller under the hollows in the electrode where the intensity of the field is minimal; (iii) annealing in a reducing atmosphere of hydrogen results in silver out-diffusion only in the regions corresponding to the electrode hollows, as a result silver forms nanoislands following the shape of the electrode. Varying the electrode and mode of processing allows governing the nanoisland size distribution and self-arrangement of the isolated single nanoislands, pairs, triples or groups of several nanoislands—so-called plasmonic molecules.

Evaluation and Characterization of Titanium to Glass Anodic Bonding

2008 ◽  
Author(s):  
Qiong Shu ◽  
Juan Su ◽  
Gang Zhao ◽  
Ying Wang ◽  
Jing Chen
Keyword(s):  
Bonding Temperature ◽  
Soda Lime ◽  
Anodic Bonding ◽  
Soda Lime Glass ◽  
Glass Wafer ◽  
Wafer Level ◽  
Different Types ◽  
Potential Applications ◽  
First Time

In this paper, Ti-Glass anodic bonding is investigated on both chip and wafer level. In concern of coefficients of thermal expansion (CTE) match, three different types of ion-containing glasses are evaluated: Pyrex 7740, D-263T and soda lime glass. By applying a potential between the two chips and heating them beyond 350°C, soda lime glass samples are successfully bonded with titanium. The influence of the bonding temperature on the bonding strength is revealed. For the first time, wafer level Ti-Glass bond is carried out, a 157-μm-thick titanium wafer is successfully bonded to a 1000-μm-thick soda glass wafer at 450°C and applying a voltage of 800V and a force of 1000N for 30min, over 60% of the surface are joined. The results are helpful to define potential applications in certain field of microsystems.

scholarly journals Unravelling the interfacial interaction in mesoporous SiO2@nickel phyllosilicate/TiO2 core–shell nanostructures for photocatalytic activity

2020 ◽  
Vol 11 ◽  
pp. 1834-1846
Author(s):  
Bridget K Mutuma ◽  
Xiluva Mathebula ◽  
Isaac Nongwe ◽  
Bonakele P Mtolo ◽  
Boitumelo J Matsoso ◽  
...  
Keyword(s):  
Methyl Violet ◽  
Optoelectronic Properties ◽  
Shell Morphology ◽  
Bandgap Energy ◽  
Core Shell ◽  
The Core ◽  
Shell Nanostructures ◽  
Carrier Separation ◽  
First Time

Core–shell based nanostructures are attractive candidates for photocatalysis owing to their tunable physicochemical properties, their interfacial contact effects, and their efficacy in charge-carrier separation. This study reports, for the first time, on the synthesis of mesoporous silica@nickel phyllosilicate/titania (mSiO2@NiPS/TiO2) core–shell nanostructures. The TEM results showed that the mSiO2@NiPS composite has a core–shell nanostructure with a unique flake-like shell morphology. XPS analysis revealed the successful formation of 1:1 nickel phyllosilicate on the SiO2 surface. The addition of TiO2 to the mSiO2@NiPS yielded the mSiO2@NiPS/TiO2 composite. The bandgap energy of mSiO2@NiPS and of mSiO2@NiPS/TiO2 were estimated to be 2.05 and 2.68 eV, respectively, indicating the role of titania in tuning the optoelectronic properties of the SiO2@nickel phyllosilicate. As a proof of concept, the core–shell nanostructures were used as photocatalysts for the degradation of methyl violet dye and the degradation efficiencies were found to be 72% and 99% for the mSiO2@NiPS and the mSiO2@NiPS/TiO2 nanostructures, respectively. Furthermore, a recyclability test revealed good stability and recyclability of the mSiO2@NiPS/TiO2 photocatalyst with a degradation efficacy of 93% after three cycles. The porous flake-like morphology of the nickel phyllosilicate acted as a suitable support for the TiO2 nanoparticles. Further, a coating of TiO2 on the mSiO2@NiPS surface greatly affected the surface features and optoelectronic properties of the core–shell nanostructure and yielded superior photocatalytic properties.

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