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

Chakrabarty, Arkajyoti and Chatterjee, Sayantan and Maitra, Uday (2013) Cadmium deoxycholate: a new and efficient precursor for highly luminescent CdSe nanocrystals. In: JOURNAL OF MATERIALS CHEMISTRY C, 1 (11). pp. 2136-2144.

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Official URL: http://dx.doi.org/10.1039/c3tc00817g

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 similar to 47%. Owing to the high thermal stability of the bile acid based cadmium precursor (decomposition point: 332 degrees C), it was possible to achieve high injection and growth temperatures (similar to 300 degrees 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.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to ROYAL SOC CHEMISTRY, ENGLAND
Department/Centre: Division of Chemical Sciences > Organic Chemistry
Depositing User: Francis Jayakanth
Date Deposited: 15 Mar 2013 12:25
Last Modified: 15 Mar 2013 12:25
URI: http://eprints.iisc.ac.in/id/eprint/46086

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