Ultra-High Vacuum Systems

Ultra-High Vacuum Systems

Carbon Coater, Pulsed Laser deposition, Sputter Coater, Thermal evaporation
Since vacuum means no material, what is actually measured as vacuum, is the residual gas pressure in the chamber.   Three different units of expression are usually used to express the pressure: Pascal (Pa), Torr, and mbar. Vacuum quality is also usually classified into three categories: Rough Vacuum, High Vacuum and Ultra-High Vacuum. Ultra-High Vacuum (UHV) is called pressure range less than 10-7 Pascal or 10-9 Torr. Classification of different vacuum levels When an ionic or electron beam collides with particles (residual gas inside the chamber), it may deviate from its path, divide or even react with that particle. As a result, the presence of unwanted particles in the system will reduce its efficiency. Mean Free Path (MFP) is the average distance traveled by a gas molecule before colliding with another…
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Gettering Pumps

Gettering Pumps

Carbon Coater, Pulsed Laser deposition, Sputter Coater, Thermal evaporation
There has also been a Gettering mechanism, which has been a pumping method, since vacuum technology came into being. Historically, the first use of this method was in the early stages of making electron tubes. The basis of the Gettering method is the absorption of some gases by some materials which results in their removal from the environment. Getter pumps fall into the general category of Capture pumps, along with cryopumps and sputter-ion pumps. The Gettering process can be divided into physical and chemical categories. Physical Getters are often found in cryostats and Dewars. In these systems, a zeolite material such as a molecular sieve is used to physically absorb and hold water vapor. If, as is often the case, the molecular sieve is placed against a surface at liquid…
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Deposition thin films of Organic Materials by Thermal Evaporation for Electro-Optical Applications

Deposition thin films of Organic Materials by Thermal Evaporation for Electro-Optical Applications

Carbon Coater, Pulsed Laser deposition, Sputter Coater, Thermal evaporation
Electronic components based on thin-film organic semiconductors have many applications because of their flexibility and large-scale fabrication at low cost. These semiconductors allow the creation of electronic devices such as OFET (Organic-Field Effect Transistor), OLED (Organic-Light Emitting Diode) and OPV (Organic Photovoltaic Cell) as a new generation of electronics. The electronic properties of the organic molecules depend on the bonds between the atoms. The location and properties of these interatomic bonds determine how light is absorbed and the charge transferred by molecules. The most important of these bonds are the conjugated bonds and how they are joined inside the molecules, where the shared electrons are able to move part of the molecule. Figure 1: Molecular structure of polyethylene and polyacetylene In non-conductive molecules such as polyethylene (shown in Figure 1),…
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Forecasting Turnover in the Field of Vacuum Layer Systems

Forecasting Turnover in the Field of Vacuum Layer Systems

Carbon Coater, Pulsed Laser deposition, Sputter Coater, Thermal evaporation
Studying Global Vacuum Layer Market Report Improves Business Decision Making. The global vacuum deposition system marketplace provides a wide range of opportunities for global manufacturers, service providers and users of the products. This report provides comprehensive and relevant information on the key players in the major global market share in terms of revenue, sales, supply, demand and quality of the vacuum coatings field products and services. The main market leaders are: Applied Materials, Buhler, Oerlikon, Von Ardenne, Shincron, ULVAC, KDF, Denton Vacuum, Veeco Instruments, IHI, CVD Equipment Corporation, BOBST, Mustang Vacuum Systems, Semicore. In the coming years, there is a growing demand for vacuum layer systems in North America and Europe. The costs of industrial squares, fierce competition, the introduction of new products, the rising costs of public industry, the…
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Field Emission Scanning Electron Microscope (FE-SEM)

Field Emission Scanning Electron Microscope (FE-SEM)

Pulsed Laser deposition, Sputter Coater, Thermal evaporation
Optical microscopes have a maximum magnification of 2000 times the magnification that is often not enough. To see particles that are smaller than the wavelength of light, we need to have very small particles so that they can be traced back to the target and visualized very small particles. The best particle for this purpose is electron. Electron is a charged and fundamental particle that can improve the magnification up to a million times. Scanning electron microscopy is an efficient and non-destructive technique that provides detailed information on the morphology, composition and structure of the studied materials. The first scanning electron microscope was invented in 1942. It was shown at that time that Secondary Electrons (SE) produced topographic contrast using the collector positive bias rather than the sample. After that,…
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Pulsed DC Magnetron Sputtering

Pulsed DC Magnetron Sputtering

Carbon Coater, Pulsed Laser deposition, Sputter Coater, Thermal evaporation
In the DC sputtering process by accelerating positive ions towards the target material (which is in negative potential) and colliding with its surface, due to the lack of electrical conductivity of the surface to move the charge, the positive charge accumulates on the surface of the target material. Due to this phenomenon, the tendency of the positive ions to move towards the target material is reduced and the sputtering process does not function properly. In the DC sputtering process of the dielectric material, the inner wall of the vacuum chamber is also coated with non-conductive material and traps the electric charge. This phenomenon, called the disappearing anode, causes the electrical charges from inclined toward this nonconductive layer. Due to this phenomenon, mini and macro arcs are created during the deposition…
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Vaccoat Products introduction on Nano Industry Magazine

Vaccoat Products introduction on Nano Industry Magazine

Carbon Coater, Pulsed Laser deposition, Sputter Coater, Thermal evaporation
In this magazine, We could know about DTT- a desktop, a turbomolecular-pumped thermal evaporator for vacuum deposition of thin films, Our supplier on Russia and capability of the Vaccoat Products. Also about our other products such as DSR1 (Desk SEM sputter coater) that is a compact coating system able to coat carbon film and noble metals such as gold (Au), palladium (Pd), platinum (Pt) and gold/palladium (Au/Pd) on non-conductive or poorly conductive specimens, or DCR that is a compact carbon fiber coating system suitable for sample preparation for the use in a scanning electron microscope (SEM), Transmission electron microscope (TEM) and X-Ray analysis (EDX). You can see the bottom, a screenshot of nano industry magazine (http://www.nanoindustry.su/page/nano_en?lang=en) with our DTT.
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The role of the deposition method in the performance of thin film propskite solar cells

The role of the deposition method in the performance of thin film propskite solar cells

Pulsed Laser deposition
Proksytic solar cells are a kind of solar cell that combines the structure of Proksytic. This substance is often an organic-mineral hybrid of lead or tin halides. Proksytic materials such as methyl ammonium lead iodide are cheap and easy to make. The structure of Proksytic is a triple structure of materials, and its general formula is ABO3. This structure consists of octahedrons, in which the cations A are located in octahedral cavities. The thin-film propskite solar cells have high conversion efficiency and can be manufactured in cheap and cost-effective ways. Compared to silicon solar cells, which are usually made in multi-stage and expensive processes, propskite solar cells can be constructed easily in laboratory conditions. These cells have been the fastest solar technology ever since. The advantage of propskite solar cells…
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10th year of Vacuum Expo in  UK

10th year of Vacuum Expo in UK

Pulsed Laser deposition
If you are interested in the vacuum field, do not miss the vacuum exhibition scheduled for 9&10 October 2019 in Ricoh Arena Coventry UK. The demonstration of industrial and scientific applications of vacuum technology in the field of coating, analytical sciences, R&D, solar cells, metallurgy, pharmaceuticals, food and packaging, space technology tools and many others are facilities provided at the exhibition for the interested in the vacuum field. See the bellow link for details:https://www.vacuum-expo.com/ https://vaccoat.com/2019/06/16/vaccoat-advertisement-at-labmate-mmc-2019-stand-604/ https://vaccoat.com/2019/06/17/why-should-an-electron-microscope-sample-be-prepared/ https://vaccoat.com/2019/06/18/selection-of-suitable-material-for-preparing-an-electron-microscope-sample/
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Sputtering Process

Pulsed Laser deposition
Sputtering Process In a basic sputtering process, the cathode plate is bombarded by highly energetic positive Ar ions and generates plasma. The bombardment results removal of target atoms (sputtering), and deposition of them on the substrate and making the thin film.
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