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Superlattices: problems and new opportunities, nanosolids.

Tsu R - Nanoscale Res Lett (2011)

Bottom Line: Superlattice is simply a way of forming a uniform continuum for whatever purpose at hand.However, new opportunities in component-based nanostructures may lead the field of endeavor to new heights.The all important translational symmetry of solids is relaxed and local symmetry is needed in nanosolids.

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Affiliation: University of North Carolina at Charlotte, Charlotte, NC 28223 USA. Tsu@uncc.edu.

ABSTRACT
Superlattices were introduced 40 years ago as man-made solids to enrich the class of materials for electronic and optoelectronic applications. The field metamorphosed to quantum wells and quantum dots, with ever decreasing dimensions dictated by the technological advancements in nanometer regime. In recent years, the field has gone beyond semiconductors to metals and organic solids. Superlattice is simply a way of forming a uniform continuum for whatever purpose at hand. There are problems with doping, defect-induced random switching, and I/O involving quantum dots. However, new opportunities in component-based nanostructures may lead the field of endeavor to new heights. The all important translational symmetry of solids is relaxed and local symmetry is needed in nanosolids.

No MeSH data available.


E-k for (a) type I and (b) type II superlattices, with energy at horizontal line.
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Figure 2: E-k for (a) type I and (b) type II superlattices, with energy at horizontal line.

Mentions: Figure 2a shows a type I-superlattice, i.e., an electron in a conduction band incident to the left of another conduction band separated by an interface and a type III-superlattice in (b) where the right side is a valence band at the same energy.


Superlattices: problems and new opportunities, nanosolids.

Tsu R - Nanoscale Res Lett (2011)

E-k for (a) type I and (b) type II superlattices, with energy at horizontal line.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3211173&req=5

Figure 2: E-k for (a) type I and (b) type II superlattices, with energy at horizontal line.
Mentions: Figure 2a shows a type I-superlattice, i.e., an electron in a conduction band incident to the left of another conduction band separated by an interface and a type III-superlattice in (b) where the right side is a valence band at the same energy.

Bottom Line: Superlattice is simply a way of forming a uniform continuum for whatever purpose at hand.However, new opportunities in component-based nanostructures may lead the field of endeavor to new heights.The all important translational symmetry of solids is relaxed and local symmetry is needed in nanosolids.

View Article: PubMed Central - HTML - PubMed

Affiliation: University of North Carolina at Charlotte, Charlotte, NC 28223 USA. Tsu@uncc.edu.

ABSTRACT
Superlattices were introduced 40 years ago as man-made solids to enrich the class of materials for electronic and optoelectronic applications. The field metamorphosed to quantum wells and quantum dots, with ever decreasing dimensions dictated by the technological advancements in nanometer regime. In recent years, the field has gone beyond semiconductors to metals and organic solids. Superlattice is simply a way of forming a uniform continuum for whatever purpose at hand. There are problems with doping, defect-induced random switching, and I/O involving quantum dots. However, new opportunities in component-based nanostructures may lead the field of endeavor to new heights. The all important translational symmetry of solids is relaxed and local symmetry is needed in nanosolids.

No MeSH data available.