Thermal Evaporative Deposition
Thermal Evaporative Deposition - Related Videos
14:01
Making Record-efficiency SnS Solar Cells by Thermal Evaporation and Atomic Layer Deposition
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Cited by 30 •
2015
Tin sulfide (SnS) is a candidate material for Earth-abundant, non-toxic solar cells. Here, we demonstrate the fabrication procedure of the SnS solar cells employing atomic layer deposition, which yields 4.36% certified power conversion efficiency, and thermal evaporation which yields 3.88%.
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.
06:43
Rotary Evaporation to Remove Solvent
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2023
Source: Dr. Melanie Pribisko Yen and Grace Tang — California Institute of Technology Rotary evaporation is a technique most commonly used in organic chemistry to remove a solvent from a higher-boiling point compound of interest. The rotary evaporator, or "rotovap", was invented in 1950 by the chemist Lyman C. Craig. The primary use of a rotovap is to dry and purify samples for downstream applications. Its speed and ability to handle large volumes of solvent make rotary evaporation a preferred...
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...
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.
FAQs
The vacuum chamber provides the low-pressure path through which vapor travels from the heated source to the substrate. This environment supports transport of the evaporated material before it condenses, allowing the deposited film to form at the intended surface. Maintaining this controlled path is therefore central to producing coatings and interfaces with predictable placement.
Resistive and electron-beam heating serve as the energy sources that raise the solid material to its evaporation temperature. Once vapor forms, it can leave the source and reach the substrate for condensation. The choice of heating approach is therefore part of controlling how the source material is converted into a deposit within the vacuum chamber.
The substrate acts as the cooler surface where arriving vapor condenses into a film. Its position and thermal relationship with the vapor source help determine where material accumulates and whether the result is continuous or patterned. In bioengineering, this makes substrate preparation and placement important for tailoring functional interfaces and device surfaces.
A typical workflow places the solid source material and substrate inside a vacuum chamber, establishes the low-pressure environment, and heats the source with resistive or electron-beam energy. Vapor then travels to the cooler substrate and condenses. The resulting layer can be formed as a continuous coating or as a patterned film, depending on the deposition arrangement.
These coatings can be used to tailor wettability, conductivity, adhesion, and chemical stability at a surface or interface. Adjusting such properties helps researchers design materials that interact more appropriately with biological environments or device components. The method therefore supports surface engineering beyond simply adding a thin layer of material.
Bioengineering applications include biocompatible coatings, micro- and nanoscale devices, biosensors, and implant surfaces. In each setting, the deposited film can modify the interface between a material and its surrounding environment. This is relevant when researchers need controlled surface behavior, functional device layers, or improved characteristics at an implant or sensing interface.