elina, Author at VacCoat

28Nov 2020 by elina

How to Make the Most Efficient Rotary Pumps?

[vc_row][vc_column][vc_single_image image="3023" img_size="large" alignment="center" onclick="link_image"][/vc_column][/vc_row][vc_row][vc_column width="1/4"][vc_wp_posts number="10"][/vc_column][vc_column width="3/4"][vc_column_text] Rotary pumps usually have many applications in industry due to their ability to work for a long time in industrial and difficult conditions. So rotary pumps maintenance is very important. Almost all vacuum coating systems made by VacCoat Ltd. are equipped with two-stage rotary pumps. In models such as DST3, DST1, DCT, etc., which use turbomolecular pumps to create a high vacuum environment, these pumps are usually used as backing pumps. Rotary Vacuum Pumps Rotary Vacuum Pumps are in the group of displacement pumps and are of the positive displacement type. This means that for each pump cycle, a constant volume of fluid is displaced, regardless of the pump pressure resistance. As a result, any blockage in the system can damage the…

02Nov 2020 by elina

Hydrophilicity and Hydrophobicity: Hydrophilicity of Deposited Carbon Thin Film

News, Thin Film

[vc_row][vc_column][vc_single_image image="2888" img_size="large" alignment="center" onclick="link_image"][/vc_column][/vc_row][vc_row][vc_column width="1/4"][vc_wp_posts number="10"][/vc_column][vc_column width="3/4"][vc_column_text] Hydrophilicity of the Deposited Carbon Thin Film The hydrophilicity or hydrophobicity of different surfaces depends on their chemical composition and structural geometry. This feature of the surfaces plays a significant role in our nature and daily life. If water beads up into droplets and does not spread evenly across the surface, is hydrophobic. On hydrophobic surfaces, the contact angle of water droplets with the surface is large. In contrast, if a drop of water that is placed on the surface is evenly distributed and has a small contact angle with the surface, it is called a hydrophilic surface. Surface modification with low-surface-energy materials is a typical technique to control over the hydrophilicity of solids. For example, using nano-structured polymers, surfaces with a…

05Oct 2020 by elina

Sputtering Process | Sputtering Deposition Method

Sputter Coater, Sputtering

[vc_row][vc_column][vc_single_image image="2792" img_size="large" alignment="center" onclick="link_image"][/vc_column][/vc_row][vc_row][vc_column width="1/4"][vc_wp_posts number="10"][vc_tta_accordion style="modern" color="mulled-wine" c_align="center" autoplay="5" active_section="1" css_animation="fadeIn"][vc_tta_section title="Thickness Control in Vacuum Coaters" tab_id="1602485417310-f88bc970-9f1c"][vc_single_image image="2495" img_size="medium" alignment="center" style="vc_box_outline" border_color="juicy_pink" onclick="custom_link" img_link_target="_blank" css_animation="bounceInRight" link="https://vaccoat.com/blog/thickness-control-of-carbon-film-in-vacuum-carbon-coaters/"][/vc_tta_section][vc_tta_section title="Glad Sputtering Technique" tab_id="1602485417464-a936cc4d-64fc"][vc_single_image image="2421" img_size="medium" alignment="center" style="vc_box_outline" border_color="juicy_pink" onclick="custom_link" img_link_target="_blank" css_animation="bounceInRight" link="https://vaccoat.com/blog/what-is-the-glad-sputtering-technique/"][/vc_tta_section][vc_tta_section title="Chalcogenide Thin Films Deposition" tab_id="1602485417597-45959951-5cad"][vc_single_image image="2506" img_size="medium" alignment="center" style="vc_box_outline" border_color="juicy_pink" onclick="custom_link" img_link_target="_blank" css_animation="bounceInRight" link="https://vaccoat.com/blog/chalcogenide-thin-films-deposition/"][/vc_tta_section][/vc_tta_accordion][/vc_column][vc_column width="3/4"][vc_column_text] Sputtering Process | Sputtering Deposition Method In terms of physics, Sputtering is a phenomenon in which energetic particles of plasma or gas hit the surface of a solid and microscopic particles are separated from it. This phenomenon occurs naturally in outer space and can cause unwanted surface wear in high precision conditions. Creating or removing nanometer layers from materials has many applications in science and industry. Deposition of nanometer layers on optical devices, semiconductors…

27Sep 2020 by elina

Improved Desk Thermal Evaporator-DTT

News, Thermal evaporation, Vacuum Coating System, Vacuum Deposition Method

[vc_row][vc_column][vc_single_image image="2767" img_size="large" alignment="center" onclick="link_image"][/vc_column][/vc_row][vc_row][vc_column width="1/4"][vc_wp_posts number="8"][/vc_column][vc_column width="3/4"][vc_column_text] Innovative News | Improved Desk Thermal Evaporator-DTT Enhanced Uniformity of Thin Film Deposition in Thermal Deposition Process via Extended Deposition Chamber Thermal evaporation deposition is one of the Physical Vapor Deposition(PVD) methods. In this method, the target material is placed inside thermal sources. These thermal sources are normally in form of Boat, Basket or Coil. The materials to be deposited are heated up, melted and evaporated by passing a high electric current through the terminal of evaporation sources. The vapor generated from the target material moves to the substrate and is deposited as a thin film with a thickness of a few nanometers to a few micrometers. Boats or baskets are made of refractory metals such as tungsten, molybdenum or tantalum. Thermal…

08Sep 2020 by elina

Pyrolytic Graphite

Report, Sputter Coater, Thin Film

[vc_row][vc_column][vc_single_image image="2713" img_size="full" alignment="center" onclick="link_image"][/vc_column][/vc_row][vc_row][vc_column width="1/4"][vc_wp_posts number="10"][vc_tta_accordion style="modern" color="mulled-wine" c_align="center" autoplay="5" active_section="1" css_animation="fadeIn"][vc_tta_section title="Magnetron Sputtering" tab_id="1599634926214-a87b084b-9687"][vc_single_image image="1228" img_size="medium" alignment="center" style="vc_box_shadow_3d" onclick="custom_link" img_link_target="_blank" link="https://vaccoat.com/blog/un-balanced-magnetron-sputtering/"][/vc_tta_section][vc_tta_section title="Glad Sputtering" tab_id="1599634926299-bc5ce079-e5e6"][vc_single_image image="2421" img_size="medium" alignment="center" style="vc_box_shadow_3d" onclick="custom_link" img_link_target="_blank" link="https://vaccoat.com/blog/what-is-the-glad-sputtering-technique/"][/vc_tta_section][vc_tta_section title="Pulsed DC Magnetron Sputtering" tab_id="1599646678678-96eb02fb-dc5c"][vc_single_image image="1471" img_size="medium" alignment="center" style="vc_box_shadow_3d" onclick="custom_link" img_link_target="_blank" link="https://vaccoat.com/blog/pulsed-dc-magnetron-sputtering/"][/vc_tta_section][/vc_tta_accordion][/vc_column][vc_column width="3/4"][vc_column_text] Pyrolytic Graphite Pyrolytic graphite is a polycrystalline form of graphite that is deposited from the vapor phase by thermal decomposition of a simple hydrocarbon such as methane. Pyrolytic graphite is a man-made material similar to graphite, except that there are covalent bonds between its graphene layers. Graphite has a layered structure, and each carbon atom in each layer is bonded to three adjacent atoms. The atomic structure of graphite is a two-dimensional lattice of hexagons whose first and third layers exactly match each other,…

19Aug 2020 by elina

Visit VacCoat Ltd. at China International Import Expo(CIIE) 2020

News, Vacuum Coating System

[vc_row][vc_column][vc_single_image image="2638" img_size="large" alignment="center" onclick="link_image"][/vc_column][/vc_row][vc_row][vc_column width="1/4"][vc_wp_posts number="10"][/vc_column][vc_column width="3/4"][vc_column_text] Visit VacCoat Ltd. at China International Import Expo (CIIE) 2020 VacCoat Ltd. Will be on hand CIIE 2020 in shanghai. CIIE is a trade fair held annually in China. The 3rd China International Import Exhibition(CIIE) will be held on November 5th to 10th, in Shanghai. In May 2017, Chinese President Xi Jinping announced at the Belt and Road Forum for International Cooperation that China will hold China International Import Expo(CIIE) starting from 2018. The expo is co-hosted by the Ministry of Commerce of China and the Shanghai Municipal Government. It is a significant move for the Chinese government to hold CIIE to give firm support to trade liberalization and economic globalization and actively open the Chinese market to the world. CIIE is…

10Aug 2020 by elina

Carbon-Supported Grids Used in Transmission Electron Microscopy (TEM Grids)

Uncategorized

[vc_row][vc_column][vc_single_image image="2589" img_size="large" alignment="center" onclick="link_image"][/vc_column][/vc_row][vc_row][vc_column width="1/4"][vc_wp_posts number="10"][/vc_column][vc_column width="3/4"][vc_column_text] Carbon-Supported Grids Used in Transmission Electron Microscopy (TEM Grids) The grids used in TEM microscopes to place specimens are usually made of copper with a mesh size of about 3 mm and a layer of plastic called a formvar and a thin film of carbon. TEM Grids When the samples are placed on the coated grids, the uniformity of the sample layer is one of the important points for proper imaging of biomolecular complex in aqueous solution. For this purpose, it is necessary that the surface in contact with the biological sample, in addition to being hydrophilic, is completely free of contamination. The layer commonly considered as supporting layer is a few nanometer thin film of amorphous carbon. This thin film absorbs…

18Jul 2020 by elina

Material Deposition Table to Select the Appropriate Method of Vacuum Deposition

Vacuum Deposition Method

[vc_row][vc_column][vc_single_image image="2562" img_size="large" alignment="center" onclick="link_image"][/vc_column][/vc_row][vc_row][vc_column width="1/4"][vc_wp_posts number="10"][/vc_column][vc_column width="3/4"][vc_column_text] Material Deposition Table to Select the Appropriate Method of Vacuum Deposition Vacuum deposition technology is a wide range of different deposition methods(method of vacuum deposition) that are used to create single or multi thin film layers of several nanometers to several micrometers of different materials and compounds on different surfaces in a high vacuum system and have various applications in industry and research fields. In general, the process of deposition of the thin films in vacuum conditions consists of three main parameters: the target material, the substrate, and the process of transferring the material from the target to the substrate. Due to the fact that different elements, alloys and compounds have different physical and chemical properties, choosing the appropriate and efficient deposition…

30Jun 2020 by elina

Cooling and Displaying the Temperature of the High Current Electrical Feedthroughs

Thermal evaporation

[vc_row][vc_column][vc_single_image image="2518" img_size="large" alignment="center" onclick="link_image"][/vc_column][/vc_row][vc_row][vc_column width="1/4"][vc_wp_posts number="10"][/vc_column][vc_column width="3/4"][vc_column_text] Cooling and Displaying the Temperature of the High Current Electrical Feedthroughs Electrical feedthroughs are tools that transmit electrical signals and currents between inside and outside of the vacuum chamber. Feedthroughs include one or more conductor pins that pass through a vacuum flange that is well sealed against air leakage. The conductive pins are electrically separated from the flange by insulation. These insulators, which are mostly made of ceramic, usually tolerate a significant difference pressure along their length. All of the vacuum coating systems fabricated by VacCoat Ltd. are also equipped with electrical feedthroughs. In DTT thermal evaporation deposition systems, the high current electrical feedthroughs are used and passed electric current more than 100A through them. Passing this high current can be caused…

24Jun 2020 by elina

Chalcogenide Thin Films Deposition

Pulsed Laser deposition, Sputter Coater, Thermal evaporation

[vc_row][vc_column][vc_single_image image="2506" img_size="large" alignment="center" onclick="link_image"][/vc_column][/vc_row][vc_row][vc_column width="1/4"][vc_wp_posts number="10"][/vc_column][vc_column width="3/4"][vc_column_text] Chalcogenide Thin Films Deposition Chalcogenides are materials that contain at least one of the chalcogen elements, the substances of group 16 of the periodic table(sulfur, selenium, tellurium, etc.). Chalcogenic glass has received a lot of attention due to its special optical properties, such as high refractive index, infrared(IR) transparency, nonlinear optical properties, and reversible phase change from amorphous to crystalline. Photovoltaic cells are one of the applications of chalcogenide thin films. Optical properties and other characteristics of thin films (thermal, mechanical, resistance, chemical, photo-sensitivity, etc.) are highly dependent on the deposition methods. Depending on how the thin film is deposited, the stoichiometry, structure, defect stats, and many other features can be controlled. Thermal Evaporation Thermal evaporation method is used for the deposition…