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Most demonstrate an essential quality of quantum mechanics known as quantum confinement. The idea behind confinement is all about keeping electrons trapped in a small area. The sizes we're talking about here for confinement have to be less than 30 nm for effective confinement.
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www.ringsurf.com/online/2003-structures.html
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The bandgap is a quantum mechanical phenomenon, and is the energy difference that is usually on the order of about one electron volt for most semiconductors. The bandgap separates ... Under quantum confinement, energy levels may be treated as discrete. By definition, quantum dots are in a state of quantum confinement.
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www.evidenttech.com/quantum-dots-explained/quantum-dot-...
www.evidenttech.com/quantum-dots-explained/quantum-dot-glossary.html
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Quantum confinement is when electrons and holes in a semiconductor are confined by a potential well in quantum well, quantum wire or quantum dot. ... That is, quantum confinement occurs when one or more of the dimensions of a nanocrystal is made very small so that it approaches the size of an exciton in bulk crystal,
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www.nanofm.com/terms/quantum_confinement.html
www.nanofm.com/terms/quantum_confinement.html
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Anything described by quantum-mechanics has some wave -like properties, as described by its wave-function. Trapping it in a small space means that only particular types of wave-function are allowed.
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www.moo.uklinux.net/kinsler/ircph/maze/quantum-confinem...
www.moo.uklinux.net/kinsler/ircph/maze/quantum-confinement.html
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An extended `quantum confinement' theory: surface-coordination imperfection modifies the entire band structure of a nanosolid ... Unfortunately, such a thorough change goes beyond the scope of currently available models such as the `quantum confinement' theory. A consistent understanding of the factors dominating the...
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stacks.iop.org/jd/34/3470
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This research concentrated on these quantum confinement effects which are relevant for electronic and optoelectronic devices. ... "Intersubband Optical Absorption in Strained Double Barrier Quantum Well Infrared Photodetectors" , Jun-jie Shi and E.M. Goldys, IEEE Transactions on Electron Devices, vol 46 no 1, p 83-8. (1999)
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www.physics.mq.edu.au/research/materials/quantum-confin...
www.physics.mq.edu.au/research/materials/quantum-confinement.html
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Since the late 1960s, scientists have theorized that shape, as well as size, would influence the character and magnitude of quantum confinement. However, according to Buhro, experimental examples of systems that differed only in the geometric dimensionality of confinement were not available prior to his current study.
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news-info.wustl.edu/tips/page/normal/420.html
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2. Derivation of the Quantum Kinetic Equation ... 2.4 The Quantum Kinetic Equations ... Cover Art for Microscopic Theory of Semiconductors: Quantum Kinetics, Confinement and Lasers...
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ecampus.com/book/9810225113
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Quantifying quantum confinement in nanocrystallites, such as QDs, requires refinement of the particle in a box picture to incorporate the different `boxes' available within a nanocrystallite; in particular the difference between the surface and center.
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yclept.ucdavis.edu/Publ/CdSe_nanoxtal.pdf
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