Synthesis and Antibacterial Studies of Nano Structured Ag Thin Films

2013 ◽  
Vol 678 ◽  
pp. 291-296 ◽  
Author(s):  
Chinnasamy Revathi ◽  
Krishnamoorthy Rajavel ◽  
Kugalur Shanmugam Ranjith ◽  
Ramasamy Thangavelu Rajendrakumar
Keyword(s):  
Thin Film ◽  
Silver Nanoparticles ◽  
Stainless Steel ◽  
Glass Substrate ◽  
Diffraction Method ◽  
Resistance Test ◽  
Microbial Resistance ◽  
Vis Spectroscopy ◽  
Silver Thin Film ◽  
Steel Substrates

Silver thin film of 5 nm thicknesses was evaporated on glass and stainless steel substrates and annealed at 300°C for one hour. Then these samples were characterized by using X-ray diffraction method (XRD), Scanning Electron Microscopy (SEM), UV-VIS spectroscopy, and subjected to anti-microbial resistance test. XRD analysis showed as deposited silver thin film coated on glass substrate and stainless steel substrates have amorphous nature. The annealed Ag thin film coated on glass and stainless steel substrates showed crystallinity with silver phase and their crystalline size were in the range of 30-40 nm and 17 nm respectively. SEM image indicates that formation of silver nanoparticles with spherical morphology after annealing on the glass substrate. But there is no nanoparticles formation was observed on annealed steel substrates. The anti microbial resistance test was done against E.Coli and that microbial growth was observed after 24 and 48 hrs. The results displayed a microbial resistance after 24 hrs for annealed Ag thin film coated on glass substrate due the formation of silver nanoparticles.

Mechanism Analysis of Field Emission for Nano-Diamond Films on Stainless Steel Substrates

2019 ◽  
Vol 807 ◽  
pp. 82-86
Author(s):  
Shu Yi Wei ◽  
Shi Jin Liu ◽  
Xiu Xia Zhang ◽  
Li Xin Guo
Keyword(s):  
Thin Film ◽  
Stainless Steel ◽  
Field Emission ◽  
Glass Substrate ◽  
Screen Printing ◽  
Diamond Films ◽  
Emission Characteristics ◽  
Emission Model ◽  
Mechanism Analysis ◽  
Steel Substrates

In this paper, nanodiamond films (NDF) were prepared on glass substrate by screen printing with nanodiamond. The NDF was printed with two layers and treated with different surface treatments.The field emission model of nanodiamond thin film was established. Field Emission of different Ratio was studyed. The mechanism by which the field emission characteristics of nanocrystalline diamond films are improved was analyzed.

XPS Studies on Light-Yellow Glass Prepared by Sol-Gel Dip-Coating

2010 ◽  
Vol 177 ◽  
pp. 430-432
Author(s):  
Xin Gang Yu ◽  
Kang Yan Zeng ◽  
Shi Song Luo ◽  
Hong Wen Ma ◽  
Wen Yue Bi ◽  
...  
Keyword(s):  
Thin Film ◽  
Chemical Composition ◽  
Glass Substrate ◽  
Sol Gel ◽  
Flat Glass ◽  
Stable State ◽  
Dip Coating ◽  
Yellow Glass ◽  
Light Yellow ◽  
Silver Thin Film

Light-yellow glass was prepared by coating silver film on the flat glass substrate surface with sol-gel dip-coating process. The chemical composition and the valence state of elements on the surface of silver thin film deposited on glass substrate were studied by X-ray photoelectron spectroscopy. Results show that: elements of Na, Mg, Ca exist in the form of their respective stable state, such as Na2O, MgO, CaO, when heat treated at 500°C for 0.5h; but Si is unstable, and exhibit stoichiometrical disturbances. Results of chemical composition and their content by weight percent of silver thin film surface reveal that minute of quantity silver on the glass surface can lead to the glass with light-yellow color. The transmission of light for the light-yellow glass, deep-yellow glass and the flat glass substrate was also analyzed by spectrophotometer, and the results indicate that the light-yellow glass is capable of absorbing UV rays heavily.

An optimized preparation process of stainless-steel substrates and their application to thin-film high pressure sensors

1993 ◽  
Vol 37-38 ◽  
pp. 703-707 ◽  
Author(s):  
A. García-Alonso ◽  
X. Huizti ◽  
E. Castaño ◽  
I. Obieta ◽  
F.J. Gracia
Keyword(s):  
Thin Film ◽  
High Pressure ◽  
Stainless Steel ◽  
Pressure Sensors ◽  
Preparation Process ◽  
Steel Substrates

Thickness Measurement of Thin Textured Films by a Novel X-Ray Diffraction Method Accounting for Secondary Extinction

2007 ◽  
Vol 130 ◽  
pp. 43-46 ◽  
Author(s):  
I. Tomov ◽  
S. Vassilev
Keyword(s):  
Thin Film ◽  
Diffraction Method ◽  
Thickness Measurement ◽  
X Ray Diffraction ◽  
X Ray ◽  
Model Sample ◽  
Silver Thin Film ◽  
Secondary Extinction ◽  
Main Component

Accounting for secondary extinction (SE) of the intensities measured from a textured film by means of conventional X-ray diffractometer, a new X-ray diffraction method is described for determination of film thickness. Physically, the problem is restricted to using a reflection pair corresponding to the main component of the texture. As model sample a vacuum-deposited silver thin film is used.

INFLUENCE OF Mg-DOPING ON SYNTHESIS OF SOL–GEL DERIVED BST THIN FILMS

2012 ◽  
Vol 02 (01) ◽  
pp. 1250010 ◽  
Author(s):  
DIONIZY CZEKAJ ◽  
AGATA LISIŃSKA-CZEKAJ
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Stainless Steel ◽  
Sol Gel ◽  
Thin Film Deposition ◽  
Phase Shifters ◽  
Film Deposition ◽  
Solution Deposition ◽  
Chemical Solution Deposition Method ◽  
Steel Substrates

Solid solutions of Ba 1-x Sr x TiO 3 (BST) type are very attractive for application in information technology, but also in microwaves for such electrically controlled devices as phase shifters, tunable filters, steerable antennas, varactors, etc. In the present study thin films of a BST solid solution with x = 0.4 (BST60/40) were prepared by the sol–gel-type chemical solution deposition method. The influence of y = 1, 3 and 5 mol.% MgO doping on synthesis of BST60/40 thin films was studied. Thermal analysis both differential and thermogravimetric were used to determine the thermochemical properties of dried BST60/40– MgO gel powders. A multilayer spin-coating approach was utilized for the Ba0.6Sr0.4TiO3–MgO thin film deposition on stainless steel substrates. X-ray diffraction analysis, SEM and EDS were utilized for thin film characterization in terms of its crystalline structure, microstructure and chemical composition. Raman spectroscopy investigation of MgO -doped Ba0.6Sr0.4TiO3 thin films grown on stainless steel substrates were also performed within the wavenumber range k = 40–1070 cm-1.

Development of Wear Resistant Zirconium Oxide Thin Films on Stainless Steel Substrates

2005 ◽  
Vol 475-479 ◽  
pp. 3915-3918
Author(s):  
I.K. Then ◽  
M. Mujahid ◽  
B. Zhang
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Grain Size ◽  
Stainless Steel ◽  
Zirconium Oxide ◽  
Treatment Time ◽  
Oxide Thin Film ◽  
Orthodontic Bracket ◽  
Thin Film Coatings ◽  
Steel Substrates

The present work deals specifically with the development of zirconium oxide thin film coatings on the stainless steel orthodontic bracket system by sputtering technique. Thin films of zirconium oxide have been deposited on injection molded stainless steel substrates using sputtering under controlled temperature and environment conditions. The deposited films, 1.5 µm in thickness, were found to have a predominantly tetragonal structure with grain size of about 5 nm. The grain size was found to increase only slightly with increasing heat treatment time at 650°C. It has been shown that thin-film zirconia coatings with stable structure and good adhesion along with very low friction coefficient could be produced.

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