Controlled-preparation of Twined Plate-like ZnO

doi:10.3969/j.issn.0251-0790.2012.05.003

Abstract

Abstract: Twined plate-like ZnO crystals were prepared by hydrothermal method with the help of zinc acetate and potassium citrate. XRD, TEM, SEM, SAED, EDX and photoluminescence spectra were employed to characterize the crystal phase, morphologies, the chemical compositions and photoluminescence properties of the ZnO samples. The growth mechanism of ZnO was tentatively investigated. The obtained twined plate-like product is about 4 μm in diameter and 600 nm in thickness, which is wurtzite hexagonal structure ZnO. The experimental results show that the molar ratio of zinc acetate to potassium citrate and reaction temperature have greater influences on the morphology of ZnO, and potassium citrate plays a key role in modulating the morpho-logy of ZnO. The controlled-preparation of ZnO can be successfully achieved by regulating the molar ratio of zinc acetate to potassium citrate. Furthermore, the twined plate-like ZnO exhibit excellent optical property.

Key words: ZnO, Hydrothermal method, Twined plate-like structure

CLC Number:

O611

TrendMD:

LV Chun-Yan, ZHANG Wei-Wei, ZHANG Qian, CHI Wen-Yang, HE Chan, LI Ji-Xue. Controlled-preparation of Twined Plate-like ZnO[J]. Chem. J. Chinese Universities, 2012, 33(05): 880.

References

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