Issue 36, 2015

Complete study of the composition and shape evolution in the synthesis of Cu2ZnSnS4 (CZTS) semiconductor nanocrystals

Abstract

This article describes a complete study of the evolution of composition (from binary to quaternary) and shape (0D–1D) during the synthesis of CZTS nanocrystals. Aliquot studies were used to track the nucleation and growth in the early stages. Distinctive stages are evident in the reaction due to the progressive incorporation of tin and zinc into the primary copper sulfide particles as a result of their differing precursor reactivity. In addition, reaction windows for shape control were devised by tuning the amine concentration, thereby allowing the formation of a diverse range of shape morphologies including nanorods and ellipsoids, as well as atypical tadpole-shaped and P-shaped nanocrystals. Polytypic nanocrystals with wurtzite and zinc blende domains were also achieved by changing the type of metal precursors used initially in the reaction.

Graphical abstract: Complete study of the composition and shape evolution in the synthesis of Cu2ZnSnS4 (CZTS) semiconductor nanocrystals

Supplementary files

Article information

Article type
Paper
Submitted
10 mar 2015
Accepted
08 apr 2015
First published
08 apr 2015

CrystEngComm, 2015,17, 6914-6922

Author version available

Complete study of the composition and shape evolution in the synthesis of Cu2ZnSnS4 (CZTS) semiconductor nanocrystals

C. Coughlan and K. M. Ryan, CrystEngComm, 2015, 17, 6914 DOI: 10.1039/C5CE00497G

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