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2014•Journal of Beijing Normal UniversityRequires access

SIZE AND OPTICAL PROPERTY CONTROL OF ZnO NANORODS

Chen Tingfan

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Abstract

ZnO nanorod arrays were grown on the glass substrates using solution method with hexamethylenetetramine(HMTA)and zinc acetate at 95℃.The nanorods properties were characterized by Xray diffraction,scanning electron microscope and spectrometer.Effects of Zn2+concentration and Zn2+to HMTA ratio on the properties of the nanorods were studied.The nanorod size and properties are very sensitive to Zn2+concentration and Zn2+to HMTA ratio.Increasing in Zn2+concentration promotes preferential growth along c axis.And increasing in HMTA to Zn2+ratio increases nanorod diameter and length.The nanrods have strong UV emission and weak visible emission.Annealing at 350℃ weakens UV emission of the nanorods.

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What this paper is about

ZnO nanorod arrays were grown on the glass substrates using solution method with hexamethylenetetramine(HMTA)and zinc acetate at 95℃.The nanorods properties were characterized by Xray diffraction,scanning electron microscope and spectrometer.Effects of Zn2+concentration and Zn2+to HMTA ratio on the properties of the nanorods were studied.The nanorod size and properties are very sensitive to Zn2+concentration and Zn2+to HMTA ratio.Increasing in Zn2+concentration promotes preferential growth along c axis.And increasing in HMTA to Zn2+ratio increases nanorod diameter and length.The nanrods have strong UV emission and weak visible emission.Annealing at 350℃ weakens UV emission of the nanorods.

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Available abstract

ZnO nanorod arrays were grown on the glass substrates using solution method with hexamethylenetetramine(HMTA)and zinc acetate at 95℃.The nanorods properties were characterized by Xray diffraction,scanning electron microscope and spectrometer.Effects of Zn2+concentration and Zn2+to HMTA ratio on the properties of the nanorods were studied.The nanorod size and properties are very sensitive to Zn2+concentration and Zn2+to HMTA ratio.Increasing in Zn2+concentration promotes preferential growth along c axis.And increasing in HMTA to Zn2+ratio increases nanorod diameter and length.The nanrods have strong UV emission and weak visible emission.Annealing at 350℃ weakens UV emission of the nanorods.

Key concepts: Nanorod, Hexamethylenetetramine, Zinc, Annealing (glass), Scanning electron microscope, Materials science, Diffraction, Chemical engineering

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