A bilayer is a double layer of closely packed atoms or molecules.
The properties of bilayers are often studied in
condensed matter physics, particularly in the context of
semiconductor devices, where two distinct materials are united to form
junction
Junction may refer to:
Arts and entertainment
* ''Junction'' (film), a 2012 American film
* Jjunction, a 2002 Indian film
* Junction (album), a 1976 album by Andrew Cyrille
* Junction (EP), by Basement Jaxx, 2002
* Junction (manga), or ''Hot ...
s (such as
p–n junctions,
Schottky junction
A Schottky barrier, named after Walter H. Schottky, is a potential energy barrier for electrons formed at a metal–semiconductor junction. Schottky barriers have rectifying characteristics, suitable for use as a diode. One of the primary char ...
s, etc.).
Layered materials, such as
graphene
Graphene () is an allotrope of carbon consisting of a single layer of atoms arranged in a hexagonal lattice nanostructure. , boron nitride, or transition metal dichalchogenides, have unique electronic properties as a bilayer system and are an active area of current research.
In biology a common example is the
Lipid bilayer
The lipid bilayer (or phospholipid bilayer) is a thin polar membrane made of two layers of lipid molecules. These membranes are flat sheets that form a continuous barrier around all cells. The cell membranes of almost all organisms and many vir ...
, which describes the structure of multiple organic structures, such as the membrane of a cell.
See also
*
Monolayer
*
Non-carbon nanotube
*
Semiconductor
A semiconductor is a material which has an electrical conductivity value falling between that of a conductor, such as copper, and an insulator, such as glass. Its resistivity falls as its temperature rises; metals behave in the opposite way. ...
*
Thin film
A thin film is a layer of material ranging from fractions of a nanometer ( monolayer) to several micrometers in thickness. The controlled synthesis of materials as thin films (a process referred to as deposition) is a fundamental step in many ...
References
Phases of matter
Thin films
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