Colloidal atomic layer deposition growth of PbS/CdS core/shell quantum dots

Traditionally, PbS/CdS quantum dots (QDs) have been synthesized via a cation exchange method, making fine control over shell growth challenging. We show here that colloidal atomic layer deposition (c-ALD) allows for the sequential growth of single monolayers of the shell, thus creating a 'true&...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2017, Vol.53 (5), p.869-872
Main Authors: Nasilowski, Michel, Nienhaus, Lea, Bertram, Sophie N, Bawendi, Moungi G
Format: Article
Language:English
Subjects:
Atomic layer deposition
Cadmium sulfides
Cation exchanging
Colloids
Exchange
Monolayers
Quantum dots
solar (photovoltaic), solid state lighting, photosynthesis (natural and artificial), charge transport, optics, synthesis (novel materials), synthesis (self-assembly), synthesis (scalable processing)
Synthesis
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Summary:Traditionally, PbS/CdS quantum dots (QDs) have been synthesized via a cation exchange method, making fine control over shell growth challenging. We show here that colloidal atomic layer deposition (c-ALD) allows for the sequential growth of single monolayers of the shell, thus creating a 'true' CdS shell on PbS QDs.
ISSN:1359-7345
1364-548X
DOI:10.1039/C6CC07403K