Issue 25, 2012

Probing the growth mechanism of self-catalytic lead selenide wires

Abstract

Highly crystalline lead capped lead selenide wires are generated by using unusual growth conditions falling between CVD and CVT, using lead dialkyldithiocarbamate, grey selenium powder and Si/SiO2 (100) substrates. Various morphologies can be obtained by modifying the source temperature. Nucleation of highly faceted lead selenide wires from bulk lead selenide crystallites is explored and the possible growth mechanisms are given. A reduction in the energy of the surface exposed on the microcrystal is one factor that governs the unique growth characteristics of the one dimensional structure that evolves.

Graphical abstract: Probing the growth mechanism of self-catalytic lead selenide wires

Supplementary files

Article information

Article type
Paper
Submitted
30 Nov 2011
Accepted
20 Apr 2012
First published
24 May 2012

J. Mater. Chem., 2012,22, 12731-12735

Probing the growth mechanism of self-catalytic lead selenide wires

M. Afzaal, K. Ahmad and P. O'Brien, J. Mater. Chem., 2012, 22, 12731 DOI: 10.1039/C2JM31840G

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