Difference between revisions of "Band alignment"
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Shepplestone (talk | contribs) (Created page with "==Band alignment== The term band alignment refers to when 2 (or more) materials join at a point. We split these into three categories, based on whether each material is a me...") |
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The term band alignment refers to the electronic structure when 2 (or more) materials join at a point. We split these into three categories, based on whether each material is a metal or semiconductor/insulator. | |||
The term band alignment refers to when 2 (or more) materials join at a point. We split these into three categories, based on whether each material is a metal or semiconductor/insulator. | |||
The simple theory of the band alignment of: | The simple theory of the band alignment of: | ||
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c) [[band alignment of metal/metal junctions|metal/metal]] junctions. | c) [[band alignment of metal/metal junctions|metal/metal]] junctions. | ||
It is worth emphasising this topic combines two theories awkwardly. The bulk band structure is a result of a periodic infinite crystal. The joined material (referred to as a heterostructure or junction) is normally considered strictly aperiodic, with the two halfs (material A and material B) being considered to continue to infinity. | |||
Latest revision as of 20:16, 24 April 2023
The term band alignment refers to the electronic structure when 2 (or more) materials join at a point. We split these into three categories, based on whether each material is a metal or semiconductor/insulator.
The simple theory of the band alignment of:
a) semiconductor/semiconductor junctions.
b) metal/semiconductor junctions.
c) metal/metal junctions.
It is worth emphasising this topic combines two theories awkwardly. The bulk band structure is a result of a periodic infinite crystal. The joined material (referred to as a heterostructure or junction) is normally considered strictly aperiodic, with the two halfs (material A and material B) being considered to continue to infinity.