Issue 12, 2015

Size control by rate control in colloidal PbSe quantum dot synthesis

Abstract

A recently demonstrated approach to control the size of colloidal nanoparticles, “size control by rate control”, which was validated on the examples of colloidal CdSe- and CdS-quantum dot (CQD) synthesis, appears to be a general strategy for designing technically applicable CQD-syntheses. The “size control by rate control” concept allows full-yield syntheses of ensembles of CQDs with different sizes by tuning the solute formation rate. In this work, we extended this strategy to dialkylphosphine enhanced hot-injection synthesis of PbSe-CQDs. Furthermore, we provide new insight into the reaction mechanism of dialkylphosphine enhancement in TOPSe based CQD-syntheses.

Graphical abstract: Size control by rate control in colloidal PbSe quantum dot synthesis

Supplementary files

Article information

Article type
Paper
Submitted
03 Jan 2015
Accepted
06 Feb 2015
First published
27 Feb 2015

Nanoscale, 2015,7, 5299-5310

Size control by rate control in colloidal PbSe quantum dot synthesis

R. K. Čapek, D. Yanover and E. Lifshitz, Nanoscale, 2015, 7, 5299 DOI: 10.1039/C5NR00028A

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