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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Fields of Study > materials science > materials > nanomaterials > quantum dots
Research, Technology, Methods > technology > nanotechnology > nanomaterials > quantum dots
Preferred Term:

quantum dots

Definition:
Nanometer-sized fragments (30 nm to 1 micron) of semiconductor crystalline material which hold a discrete number of electrons and emit photons. The wavelength is based on the quantum confinement size of the dot and the number of electrons can be altered by modifying the electrostatic environment of the dot.
Concept Schemes:
NALT Full
Broader Concept:
nanomaterials
Narrower Concepts:
Related Concepts:
Entry Terms:
  • semiconductor quantum dots
  • semiconductor nanocrystal quantum dots
URI:
https://lod.nal.usda.gov/nalt/138026
Download this Concept:
RDF/XMLCreated 2010-10-08, last modified 2017-05-05
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