quantum dot

[‚kwänt·əm ′dät] (electronics) A quantized electronic structure in which electrons are confined with respect to motion in all three dimensions.

quantum dot

(physics)(Or "single-electron transistor") A location capableof containing a single electrical charge; i.e., a singleelectron of Coulomb charge. Physically, quantum dots arenanometer-size semiconductor structures in which thepresence or absence of a quantum electron can be used to storeinformation.

See also: quantum cell, quantum cell wire, quantum-dot cellular automata.

http://www-mtl.mit.edu/MTL/bulletin/v6n2/Kumar.html.

["Quantum Dot Heterostructures", D. Bimberg, et al, JohnWiley & Sons Ltd., Dec 1998].

quantum dot

A minuscule crystal of semiconductor material composed of various compounds of chemicals such as cadmium, zinc, tellurium, selenium and sulfur. Less than 500 nanometers in size, these "nanoparticles" react to light, as well as electricity, and emit their own light across the visible range of wavelengths from 470 to 730 nm.

The applications for quantum dots include medical sensors and lighting systems that are "painted" onto materials. Thin film deposits of quantum dots on solar cell substrates can increase their voltage output by fluorescing the light before it is captured. See QuantumFilm, quantum dot backlight, ULED and QLED.

单词	quantum dot
释义	quantum dot quantum dot n.1. A semiconductor nanostructure in which the excitons are constrained in all three spatial dimensions.2. Any of various semiconductor nanocrystals that absorb white light and then reemit it a couple of nanoseconds later in a specific color, used as probes for tracking antibodies, viruses, proteins, or DNA in cells and organisms. Translations quantum dot quantum dot [‚kwänt·əm ′dät] (electronics) A quantized electronic structure in which electrons are confined with respect to motion in all three dimensions. quantum dot (physics)(Or "single-electron transistor") A location capableof containing a single electrical charge; i.e., a singleelectron of Coulomb charge. Physically, quantum dots arenanometer-size semiconductor structures in which thepresence or absence of a quantum electron can be used to storeinformation. See also: quantum cell, quantum cell wire, quantum-dot cellular automata. http://www-mtl.mit.edu/MTL/bulletin/v6n2/Kumar.html. ["Quantum Dot Heterostructures", D. Bimberg, et al, JohnWiley & Sons Ltd., Dec 1998]. quantum dot A minuscule crystal of semiconductor material composed of various compounds of chemicals such as cadmium, zinc, tellurium, selenium and sulfur. Less than 500 nanometers in size, these "nanoparticles" react to light, as well as electricity, and emit their own light across the visible range of wavelengths from 470 to 730 nm. The applications for quantum dots include medical sensors and lighting systems that are "painted" onto materials. Thin film deposits of quantum dots on solar cell substrates can increase their voltage output by fluorescing the light before it is captured. See QuantumFilm, quantum dot backlight, ULED and QLED. quantum dot quantum dot particles of semiconductor material smaller than 10 nm, used for staining and in vivo biomarker studies. Synonym(s): nanocrystal See QD See QD
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