Optically Bright Quantum Dots in Single Nanowires
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- 16 June 2005
- journal article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 5 (7) , 1439-1443
- https://doi.org/10.1021/nl050802y
Abstract
We fabricate and demonstrate optically active quantum dots embedded in single nanowires. Observation of photon antibunching proves the zero dimensionality of these heterostructures that can be epitaxially grown on various substrates, including silicon. We show that the nanowire dots are intense single photon sources, typically an order of magnitude brighter than self-assembled quantum dots. Due to control over their composition, size, and position, nanowire dots are ideal building blocks for fully controlled quantum dot molecules.Keywords
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