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Issue 11, 2013
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Cadmium deoxycholate: a new and efficient precursor for highly luminescent CdSe nanocrystals

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Abstract

We have demonstrated that cadmium deoxycholate (1), a Cd-salt, provides a convenient and inexpensive route to high quality CdSe nanocrystals with photoluminescence (PL) in the blue to red region of the visible spectrum, with reproducible quantum yields as high as ∼47%. Owing to the high thermal stability of the bile acid based cadmium precursor (decomposition point: 332 °C), it was possible to achieve high injection and growth temperatures (∼300 °C) for the nanocrystals, which was essential for obtaining larger CdSe nanocrystals emitting in the red region (625–650 nm) with a sharp full width at half maximum (FWHM) (23 nm) and multiple (6–7) excitonic absorption features. The as-prepared CdSe nanocrystals synthesized from cadmium deoxycholate represent a series of highly efficient emitters with pure colours and controllable sizes, shapes and structures.

Graphical abstract: Cadmium deoxycholate: a new and efficient precursor for highly luminescent CdSe nanocrystals

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Supplementary files

Article information


Submitted
10 Dec 2012
Accepted
10 Jan 2013
First published
11 Jan 2013

J. Mater. Chem. C, 2013,1, 2136-2144
Article type
Paper

Cadmium deoxycholate: a new and efficient precursor for highly luminescent CdSe nanocrystals

A. Chakrabarty, S. Chatterjee and U. Maitra, J. Mater. Chem. C, 2013, 1, 2136 DOI: 10.1039/C3TC00817G

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