Campus Units

Chemistry

Document Type

Article

Publication Version

Published Version

Publication Date

11-5-2013

Journal or Book Title

Journal of Physical Chemistry Letters

Volume

4

Issue

22

First Page

3918

Last Page

3923

DOI

10.1021/jz402048p

Abstract

Cu2ZnSnS4 (CZTS) is a promising material for solar energy conversion, but synthesis of phase-pure, anisotropic CZTS nanocrystals remains a challenge. We demonstrate that the initial concentration (loading) of cationic precursors has a dramatic effect on the morphology (aspect ratio) and composition (internal architecture) of hexagonal wurtzite CZTS nanorods. Our experiments strongly indicate that Cu is the most reactive of the metal cations; Zn is next, and Sn is the least reactive. Using this reactivity series, we are able to purposely fine-tune the morphology (dots versus rods) and degree of axial phase segregation of CZTS nanocrystals. These results will improve our ability to fabricate CZTS nanostructures for photovoltaics and photocatalysis.

Comments

Reprinted (adapted) with permission from Journal of Physical Chemistry Letters 4 (2013): 3918, doi: 10.1021/jz402048p. Copyright 2013 American Chemical Society.

Copyright Owner

American Chemical Society

Language

en

File Format

application/pdf

Included in

Chemistry Commons

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