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Research News
CdSe Magic-Sized Nuclei, Magic-Sized Nanoclusters and Regular Nanocrystals: Monomer Effects on Nucleation and Growth
Article first published online: 24 JAN 2012
DOI: 10.1002/adma.201104081
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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How to Cite
Yu, K. (2012), CdSe Magic-Sized Nuclei, Magic-Sized Nanoclusters and Regular Nanocrystals: Monomer Effects on Nucleation and Growth. Adv. Mater., 24: 1123–1132. doi: 10.1002/adma.201104081
Publication History
- Issue published online: 14 FEB 2012
- Article first published online: 24 JAN 2012
- Manuscript Revised: 14 DEC 2011
- Manuscript Received: 24 OCT 2011
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Abstract
Colloidal semiconductor quantum dots (QDs) have been well appreciated for their potential in nanophotonics with an unprecedented impact in various areas, including light emitting diodes (LEDs) and solar cells. There is an outstanding demand on the control of size and size distribution for the various applications, with rational design supported by fundamental understanding of nucleation and growth. This Research News introduces recent advances in the synthesis of colloidal CdSe magic-sized nuclei (MSN) exhibiting sharp bandgap emission, with a model proposed to illustrate the nature of monomers and their degree of supersaturation (DS) affecting the formation of various CdSe MSN, magic-sized nanoclusters (MSCs), and regular nanocrystals (RNCs). Also, this model addresses tuning the CdSe RNCs into the CdSe MSN with the presence of cadmium acetate (Cd(OAc)2) affecting the nature of the monomers.