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Highly luminescent water-soluble CdTe quantum dots

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2003-026.pdf (165.86 KB)

Publication date

2003-04

Authors

Wuister, SF
Swart, A.N.
van Driel, F
Hickey, SG
Donega, CD
Swart, IngmarORCID 0000-0003-3201-7301ISNI 0000000390199991

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DOI

https://doi.org/10.1021/nl034054t

Document Type

Article

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Abstract

Colloidal CdTe quantum dots prepared in TOP/DDA (trioctylphosphine/dodecylamine) are transferred into water by the use of aminoethanethiol.HCl (AET) or mercaptopropionic acid (MPA). This results in an increase in the photoluminescence quantum efficiency and a longer exciton lifetime. For the first time, water-soluble semiconductor nanocrystals presenting simultaneously high band-edge photoluminescence quantum efficiencies (as high as 60% at room temperature), monoexponential exciton decays, and no observable defect-related emission are obtained.

Keywords

CDSE NANOCRYSTALS, SEMICONDUCTOR NANOCRYSTALS, STABILIZED CDSE, CLUSTERS, ROUTES, YIELD

Citation

Wuister, SF, Swart, A N, van Driel, F, Hickey, SG, Donega, CD & Swart, I 2003, 'Highly luminescent water-soluble CdTe quantum dots', Nano Letters, vol. 3, no. 4, pp. 503-507. https://doi.org/10.1021/nl034054t

URI

https://dspace.library.uu.nl/handle/1874/25791