Issue 18, 2012

Growth of flower-like ZnO viasurfactant-free hydrothermal synthesis on ITO substrate at low temperature

Abstract

Without any surfactant, rod-like and three kinds of flower-like ZnO microstructures were synthesized on indium-doped tin oxide (ITO) glass substrates through a simple and environmentally-benign hydrothermal process at 70 °C. The result indicated that rod-like ZnO would be transformed into flower-like ZnO microstructures with decreasing the concentration of sodium hydroxide. The ends, numbers and diameters of the petals of flower-like ZnO varied greatly by modulating the concentration of sodium hydroxide. The secondary nucleation and growth phenomena of ZnO were observed. Time-dependent experiments results indicate that the flower-like ZnO formed in a short period of time. The evolution of morphology and size of ZnO microstructures depended on the reaction time. The amounts and diameters of the petals of flower-like ZnO changed with increasing reaction time. On the basis of our observations and the mechanism proposed previously, the possible growth mechanism for flower-like ZnO was proposed.

Graphical abstract: Growth of flower-like ZnO via surfactant-free hydrothermal synthesis on ITO substrate at low temperature

Article information

Article type
Paper
Submitted
25 Dec 2011
Accepted
07 Jun 2012
First published
08 Jun 2012

CrystEngComm, 2012,14, 5996-6003

Growth of flower-like ZnO via surfactant-free hydrothermal synthesis on ITO substrate at low temperature

R. Shi, P. Yang, J. Wang, A. Zhang, Y. Zhu, Y. Cao and Q. Ma, CrystEngComm, 2012, 14, 5996 DOI: 10.1039/C2CE25606A

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