Semiconductor clusters, nanocrystals, and quantum dots

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Univ of California, Berkeley, United States [1 ]
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Science | / 5251卷 / 933-937期
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Electronic density of states - Nanostructured materials - Optical properties - Semiconductor quantum dots;
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摘要：
Current research into semiconductor clusters is focused on the properties of quantum dots - fragments of semiconductor consisting of hundreds to many thousands of atoms - with the bulk bonding geometry and with surface states eliminated by enclosure in a material that has a larger band gap. Quantum dots exhibit strongly size-dependent optical and electrical properties. The ability to join the dots into complex assemblies creates many opportunities for scientific discovery.
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