Issue 25, 2011

Evolution of zinc oxidenanostructures through kinetics control

Abstract

In-depth understanding of the kinetics of the vapor deposition process is substantial for advancing this capable bottom-up nanostructure synthesis approach into a versatile large-scale nanomanufacturing technology. In this paper, we report a systematic study of the vapor deposition kinetics of ZnO nanomaterials under controlled atmosphere and properly refined deposition conditions. The experiments clearly evidenced the self-catalyzed growth of ZnO NWs via the formation of ZnO nanoflowers. This result illustrated how ZnO morphologies were associated with the discrepancy between oxidation rate and condensation rate of Zn. The capability of switching the NW morphologies and possibly mechanisms was demonstrated by kinetically controlling the deposition system. The high Zn composition during the deposition resulted in strongly luminescent NWs, which can be used for optical imaging applications. This research discovered a fundamental kinetics that governs the mechanisms and morphology selection of nanostructures in a non-catalyst growth system.

Graphical abstract: Evolution of zinc oxide nanostructures through kinetics control

Supplementary files

Article information

Article type
Paper
Submitted
02 Mar 2011
Accepted
07 Apr 2011
First published
14 May 2011

J. Mater. Chem., 2011,21, 9000-9008

Evolution of zinc oxide nanostructures through kinetics control

J. Shi, H. Hong, Y. Ding, Y. Yang, F. Wang, W. Cai and X. Wang, J. Mater. Chem., 2011, 21, 9000 DOI: 10.1039/C1JM10918A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements