Oblique Angle Deposition
Oblique Angle Deposition - Related Videos
06:30
Fabrication of Ultra-thin Color Films with Highly Absorbing Media Using Oblique Angle Deposition
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Cited by 2 •
2017
We present a detailed method for fabricating ultra-thin color films with improved characteristics for optical coatings. The oblique angle deposition technique using an electron beam evaporator allows improved color tunability and purity. Fabricated films of Ge and Au on Si substrates were analyzed by reflectance measurements and color information conversion.
09:10
The Preparation of Oblique Spinal Cord Slices for Ventral Root Stimulation
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Cited by 1 •
2016
We show how to prepare oblique slices of the spinal cord in young mice. This preparation allows for the stimulation of the ventral roots.
01:16
Stress on an Oblique Plane
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2024
Understanding stress on an oblique plane under axial loading is pivotal in material mechanics. This analysis offers insight into a material's durability and strength, which is crucial for civil engineering and structural design. Axial loading refers to force application along the material's central axis, causing compression or elongation and leading to normal stress. Normal stress occurs when a force acts perpendicularly to the material's area, resulting in compressive or tensile stress. When...
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...
01:13
Contact Angle
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2023
When a solid is dipped inside a liquid, the liquid surface becomes curved near the contact. For some solid–liquid interfaces, the liquid is pulled up along the solid, while for others, the liquid surface is convex or depressed near the solid surface. This phenomenon can be explained using the concept of cohesive and adhesive forces. The adhesive force is the molecular force between molecules of different materials, that is, between the molecules of the solid and the liquid. The cohesive force...
FAQs
The key growth mechanism is geometric shadowing. Small surface features block portions of the incoming vapor flux, so later-arriving material preferentially reaches exposed regions rather than filling every gap. This self-reinforcing obstruction separates growing features and can produce tilted columns or porous networks. In chemistry research, that mechanism converts deposition geometry into controllable nanoscale architecture.
In Oblique Angle Deposition, substrate motion changes how the incoming flux is presented during growth. Keeping the substrate stationary preserves a directional growth bias, whereas rotation changes that presentation over time. The resulting difference can alter film directionality and organization, allowing researchers to tune anisotropy and examine how deposition geometry controls structure rather than producing an isotropic coating.
Film architecture matters because separated columns and porous networks can change the surface area, optical response, wettability, and diffusion pathways available to a material. These features provide adjustable variables rather than fixed properties. Comparing films with different architectures helps researchers connect nanoscale organization with measurable behavior and investigate structure–property relationships in chemically relevant thin-film systems.
Stationary and rotating substrates provide different deposition geometries for examining directional behavior. A stationary substrate maintains a consistent relationship between the incoming material and the surface, while rotation changes that relationship during growth. Comparing the resulting films helps isolate how directional organization develops and supports studies of anisotropy, meaning properties that vary with direction.
A basic workflow starts by directing vapor-phase material toward a substrate at a highly inclined angle, then selecting whether the substrate remains stationary or rotates during growth. The resulting film is examined through its nanoscale architecture and directional properties, including surface area, optical response, wettability, or diffusion pathways. These comparisons connect deposition conditions with structure–property relationships.
Chemistry researchers can use these films when directional surface or transport properties are valuable, including catalysis, sensing, photonics, and energy devices. Their tunable nanoscale architecture provides a way to investigate how morphology affects optical response, wettability, surface area, and diffusion. These systems also support comparative experiments that relate deposition geometry to functional behavior.