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Segmented flow-based multistep synthesis of cadmium selenide quantum dots with narrow particle size distribution

 
: Misuk, V.; Schmidt, Maxim; Braukmann, Sandra; Giannopoulos, Konstantinos; Karl, Dominik; Löwe, Holger

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Chemical Engineering and Technology 38 (2015), No.7, pp.1150-1153
ISSN: 0930-7516
ISSN: 1521-4125
Workshop on Chemical and Biological Micro Laboratory Technologies <8, 2014, Elgersburg>
English
Journal Article, Conference Paper
Fraunhofer ICT-IMM ()
CdSe; continuous flow; droplet flow; Microfluidics; Quantum Dots

Abstract
A continuous-flow microreactor was used to synthetize II–VI semiconductor quantum dots (CdSe). In order to improve the size distribution of the nanoparticles, the synthesis was carried out in a two-step procedure. A seed solution was obtained in a separate nucleation step, followed by a controllable growth step. Quantum dots that are synthesized with the two-step method show a much narrower size distribution in comparison to those obtained in a conventional batch synthesis.

: http://publica.fraunhofer.de/documents/N-345535.html