Vapor Deposition
Vapor Deposition - Related Videos
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.
06:39
Aerosol-assisted Chemical Vapor Deposition of Metal Oxide Structures: Zinc Oxide Rods
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Cited by 19 •
2017
Columnar zinc oxide structures in the form of rods are synthesized via aerosol-assisted chemical vapor deposition without the use of pre-deposited catalyst-seed particles. This method is scalable and compatible with various substrates based on either silicon, quartz or polymers.
08:18
Synthesis and Characterization of High c-axis ZnO Thin Film by Plasma Enhanced Chemical Vapor Deposition System and its UV Photodetector Application
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Cited by 24 •
2015
We offered a method to directly synthesize high c-axis (0002) ZnO thin film by plasma enhanced chemical vapor deposition. The as-synthesized ZnO thin film combined with Pt interdigitated electrode was used as sensing layer for ultraviolet photodetector, showing a high performance through a combination of its good responsivity and reliability.
02:34
Vapor Pressure
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2020
When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules move randomly about, they will occasionally collide with the surface of the condensed phase, and in some cases, these collisions will result in the molecules re-entering the condensed phase. The change from the gas phase to the liquid is called condensation. When the rate of condensation becomes equal to the rate of vaporization, neither the amount of the liquid nor the amount of the vapor...
07:32
Reactive Vapor Deposition of Conjugated Polymer Films on Arbitrary Substrates
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Cited by 4 •
2018
This paper presents a protocol for reactive vapor deposition of poly(3,4-ethylenedioxythiophene), poly(3,4-propylenedioxythiophene), and poly(thieno[3,2-b]thiophene) films on glass slides and rough substrates, such as textiles and paper.
FAQs
Physical vapor deposition starts with a source material that is vaporized and transported, often under vacuum, to a substrate, where it condenses into a film. Chemical vapor deposition instead supplies gaseous precursors that react or decompose at the surface, creating the solid layer. This distinction links the selected route to precursor chemistry and the way the coating forms.
Precursor chemistry, temperature, pressure, and deposition rate are the main adjustable controls identified for these coatings. Together, they influence surface composition, film thickness, roughness, and biological interactions. Changing one condition can therefore alter more than one coating attribute at once. Researchers use this control to match a surface to an implant, biosensor, microfluidic device, or scaffold.
Composition, thickness, and roughness matter because they are adjustable surface features linked to biological interactions. A coating can therefore be designed not only as a physical layer but also as a way to tailor how an implant, biosensor, microfluidic device, or scaffold presents its surface in a biological setting. This makes surface control a central bioengineering purpose.
A typical workflow begins by selecting a solid substrate and a source or precursor suited to the desired film. In the physical route, the source is vaporized, transported, and condensed. In the chemical route, gaseous precursors reach the surface and react or decompose there. Temperature, pressure, and deposition rate are then controlled to tune the coating.
The source material identifies implants, biosensors, microfluidic devices, and tissue-engineering scaffolds as major application settings. Depending on the design, the deposited layer may provide protection, electrical conductivity, antimicrobial behavior, or biocompatibility. These functions make the technique relevant across devices that need a controlled interface between engineered materials and biological environments.
For scaffolds, control over composition, thickness, roughness, and biological interactions allows researchers to tailor the coating to the scaffold's intended role. The same processing framework can add protective, antimicrobial, conductive, or biocompatible characteristics, depending on the coating design. This connects materials processing with the biological performance expected from tissue-engineering constructs.