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Large area, rapid growth of two-dimensional ZnO nanosheets and their field emission performances

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Abstract

We demonstrate an improved and rapid method to synthesize uniform two-dimensional ZnO nanosheets at low temperature. These nanosheets can be prepared within an hour. The compositions and morphologies of the nanosheets produced were characterized by SEM, XRD, Raman and photoluminescence analysis. The nanosheets showed reasonably strong electron field emission properties with good reliability. Emission current density close to 0.3 mA/cm2 was obtained. The effects of dimensions and morphologies on the field emission performance of the nanosheets are also discussed.

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Authors and Affiliations

  1. NUS Nanoscience and Nanotechnology Initiative, Block S13, 2 Science Drive 3, Singapore, 117542, Singapore

    Kok Chung Chin, Ghee Lee Chong, Chorng Haur Sow & Andrew Thye Shen Wee

  2. Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore, 117542, Singapore

    Kok Chung Chin, Chee Kok Poh, Jianyi Lin, Chorng Haur Sow & Andrew Thye Shen Wee

  3. Institute of Chemical and Engineering Sciences, 1 Pesek Road, Jurong Island, Singapore, 627833, Singapore

    Chee Kok Poh & Jianyi Lin

Authors
  1. Kok Chung Chin
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  2. Chee Kok Poh
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  3. Ghee Lee Chong
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  4. Jianyi Lin
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  5. Chorng Haur Sow
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  6. Andrew Thye Shen Wee
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Correspondence to Andrew Thye Shen Wee.

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PACS

62.23.Kn; 79.70.+q; 81.16.Be

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Chin, K., Poh, C., Chong, G. et al. Large area, rapid growth of two-dimensional ZnO nanosheets and their field emission performances. Appl. Phys. A 90, 623–627 (2008). https://doi.org/10.1007/s00339-007-4379-9

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  • DOI: https://doi.org/10.1007/s00339-007-4379-9

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