Vacuum Deposition
Vacuum Deposition - Related Videos
07:44
Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes
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Cited by 8 •
2018
A protocol for the production of simple structured organic light-emitting diodes (OLEDs) is presented.
08:58
Seedless Growth of Bismuth Nanowire Array via Vacuum Thermal Evaporation
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Cited by 1 •
2015
A protocol for seedless and high yield growth of bismuth nanowire arrays through vacuum thermal evaporation technique is presented.
06:20
Proper Operation of Vacuum Based Equipment
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2023
Source: Robert M. Rioux, Ajay Sathe & Zhifeng Chen, Pennsylvania State University, University Park, PA Vacuum is required for a number of laboratory procedures. This is most routinely achieved in the laboratory by the use of vacuum pumps. In addition to working at low pressures, vacuum pumps can also be used to enable rapid changing of the atmospheres in a reactor or flask by evacuation and backfilling.
08:25
Chemical Vapor Deposition of an Organic Magnet, Vanadium Tetracyanoethylene
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Cited by 15 •
2015
We present the synthesis of the organic-based ferrimagnet vanadium tetracyanoethylene (V[TCNE]x, x~2) via low temperature chemical vapor deposition (CVD). This optimized recipe yields an increase in Curie temperature from 400 K to over 600 K and a dramatic improvement in magnetic resonance properties.
02:33
Phase Transitions: Sublimation and Deposition
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2020
Some solids can transition directly into the gaseous state, bypassing the liquid state, via a process known as sublimation. At room temperature and standard pressure, a piece of dry ice (solid CO2) sublimes, appearing to gradually disappear without ever forming any liquid. Snow and ice sublimate at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. When solid iodine is warmed, the solid sublimes...
FAQs
Pressure and substrate temperature govern how deposited species move, arrive, and form a film. Pressure establishes the reduced environment through which atoms, molecules, or compounds travel, while substrate temperature is a controllable factor affecting film structure. Engineers vary these conditions, together with deposition rate and composition, to tune the resulting coating’s performance.
The main distinction is how the coating material becomes available for film growth. Physical routes vaporize a solid source through heating or energetic bombardment. Chemical routes supply gaseous precursors that react or decompose near the substrate. This difference gives engineers alternative ways to form films with compositions and properties suited to particular engineering requirements.
Deposition rate and film composition are process variables that help determine the resulting coating structure and behavior. Adjusting the rate changes how quickly material accumulates, while changing composition alters the film itself. Controlling both allows engineers to target properties such as hardness, wear resistance, corrosion protection, optical behavior, electrical conductivity, or appearance.
A typical process requires a reduced-pressure chamber, a substrate, and a material source or gaseous precursor. Engineers select either a physical route, using heating or energetic bombardment, or a chemical route, using precursor reaction or decomposition. They then control pressure, substrate temperature, deposition rate, and film composition to obtain the intended coating characteristics.
Engineers choose this approach when a surface needs more than its underlying material can provide. The resulting coating can be tailored for surface hardness, wear resistance, corrosion protection, optical behavior, electrical conductivity, or appearance. These needs arise across tools, electronics, aerospace components, and energy systems, where surface performance can affect the usefulness of the finished product.
Vacuum deposition can produce coatings designed around specific surface and device requirements rather than a single universal performance goal. By adjusting process conditions and film composition, engineers can influence hardness, resistance to wear or corrosion, optical behavior, conductivity, and appearance. This flexibility supports applications ranging from protective component surfaces to functional layers in electronic and energy systems.