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Morphology-Controlled Synthesis of 1D ZnO Nanostructures by Hydrothermal Technique

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Abstract:

A two-step hydrothermal synthesis technique has been developed to obtained 1D ZnO nanostructures with adjustable aspect ratio and size distribution. The pre-curing process has important influence on the morphological, structural and optical properties. The LO phonons of the nanowires obtained by pre-curing for 24 h exhibit slight batho-shift in comparison with nanorods. The increase of the intensity ratio of ultraviolet to visible emissions in room-temperature photoluminescence spectra show the improvement in the quality of ZnO nanostructures as the pre-curing time prolonged. The fitting result of EX energy at T=0 is 3.382 and 3.370 eV for ZnO nanowires and nanorods, respectively.

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Periodical:

Advanced Materials Research (Volume 266)

Pages:

17-21

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.266.17

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Online since:

June 2011

Authors:

Zhi Duan Cai, Lin Dong, Guo Xi Cao, Xing Yan Zhang, Shaokang Guan

Keywords:

1D Nanostructure, Hydrothermal Synthesis, Photoluminescence (PL), RAMAN, X-Ray Diffraction (XRD), Zinc Oxide (ZnO)

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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