Issue 47, 2012
From the journal:

Dalton Transactions

Growth kinetics of CdSe quantum dots generated in polar polymers

Isabella Concina,*a   Marta Maria Natile,b   Eugenio Tondellob  and  Giorgio Sberveglieria  

* Corresponding authors

a CNR-IDASC SENSOR Laboratory, via Branze, 45-25131 Brescia, Italy
E-mail: isabella.concina@ing.unibs.it
Tel: +39 030 6595252

b CNR-ISTM, INSTM, Dip. Scienze Chimiche, University of Padova, Padova, via Marzolo, 1-35131 Padova, Italy
E-mail: martamaria.natile@unipd.it
Tel: +39 049 8275196

Abstract

Growth kinetics of CdSe nanocrystals generated inside three selected polymers (polyvinylpyrrolidone – PVP, polyethyleneglycol – PEG and polyvinylalcohol – PVA) are demonstrated to follow a self-catalytic path, with growth rates depending on the nature of the polymer, i.e. on the capability to activate the cadmium species present in the solution of a metal precursor. A two-step process drives the size evolution of nanocrystals and a critical diameter value can be identified at which the growth regime changes. The medium-term stability evaluation of nanocomposites indicates that, after an initial rearrangement, polymers keep stable the embedded CdSe nanocrystals.

Graphical abstract: Growth kinetics of CdSe quantum dots generated in polar polymers

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Article information

DOI
https://doi.org/10.1039/C2DT31364B
Article type
Paper
Submitted
26 Jun 2012
Accepted
15 Sep 2012
First published
19 Sep 2012

Dalton Trans., 2012,41, 14354-14359

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Growth kinetics of CdSe quantum dots generated in polar polymers

I. Concina, M. M. Natile, E. Tondello and G. Sberveglieri, Dalton Trans., 2012, 41, 14354 DOI: 10.1039/C2DT31364B

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