Combining nanoscale manipulation with macroscale relocation of single quantum dots

We have controllably positioned, with nanometre precision, single CdSe quantum dots referenced to a registration template such that the location of a given nanoparticle on a macroscopic (≈1 cm2) sample surface can be repeatedly revisited. The atomically flat sapphire substrate we use is particularly...

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Bibliographic Details
Main Authors: Francesca Paola Quacquarelli, Richard A. J. Woolley, Martin Humphry, Jasbiner Chauhan, Philip J. Moriarty, Ashley Cadby
Format: Article
Language:English
Published: Beilstein-Institut 2012-04-01
Series:Beilstein Journal of Nanotechnology
Subjects:
Online Access:https://doi.org/10.3762/bjnano.3.36
Description
Summary:We have controllably positioned, with nanometre precision, single CdSe quantum dots referenced to a registration template such that the location of a given nanoparticle on a macroscopic (≈1 cm2) sample surface can be repeatedly revisited. The atomically flat sapphire substrate we use is particularly suited to optical measurements of the isolated quantum dots, enabling combined manipulation–spectroscopy experiments on a single particle. Automated nanoparticle manipulation and imaging routines have been developed so as to facilitate the rapid assembly of specific nanoparticle arrangements.
ISSN:2190-4286