Issue 17, 2004

On-line analysis of CdSe nanoparticle formation in a continuous flow chip-based microreactor

Abstract

The online analysis of cadmium selenide nanoparticle formation in continuous-flow microfluidic reactors is described. The as-produced particles exhibit sharp excitonic absorption and emission peaks (∼30–40 nm) with relatively high quantum efficiencies (∼10%). The mean size and dispersity of the particles, determined using on-line fluorescence detection, may be controlled by varying the reaction temperature and/or the flow rate. The microfluidic approach provides considerable control over nucleation/growth processes and is a promising strategy for the direct production of near-monodisperse nanoparticles without recourse to further size selection.

Graphical abstract: On-line analysis of CdSe nanoparticle formation in a continuous flow chip-based microreactor

Article information

Article type
Paper
Submitted
02 Feb 2004
Accepted
20 May 2004
First published
01 Jul 2004

J. Mater. Chem., 2004,14, 2655-2660

On-line analysis of CdSe nanoparticle formation in a continuous flow chip-based microreactor

S. Krishnadasan, J. Tovilla, R. Vilar, A. J. deMello and J. C. deMello, J. Mater. Chem., 2004, 14, 2655 DOI: 10.1039/B401559B

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