Acta Optica Sinica, Volume. 30, Issue 6, 1739(2010)

Study of the ZnO Nanomaterial Field-Emission Cathode Array Based on Graphical Growth

Lin Zhixian*, Guo Tailiang, Zhang Yong′ai, and Qin Huafang
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    Graphical growth was realized by the use of lithographic technology on the ITO glass substrate covered with zinc oxide (ZnO) thin film. Rectangular and circle ZnO arrays which had integrated structure and orderly arrangement were prepared on substrate by hydrothermal method. The ZnO nanocone arrays were secondarily grown based on graphical once growth. The maximum length was 10 μm. Its length was far longer than the length which was grown by once growth. And many needle-like micro-structures of nano scale were found on the tip of nanocone. The field emission performance of ZnO nanocone arrays which had been prepared by non-graphical,graphical once growth and graphical secondary growth were analyzed. A 12.7 cm (5 inch) size FED was fabricated by using the ZnO nanocone cathode array. And it can realize full-screen light emitting. The experimental results showed that the emission current density of ZnO nanocone by graphical secondary growth was the greatest. Its emission current density was 0.6 mA/cm2 and its turn-on field was 2.5 V/μm. The graphical growth of ZnO nanocone was a feasible method for improving field emission properties. The results provided an effective experimental method for preparing good field emission performance material.

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    Lin Zhixian, Guo Tailiang, Zhang Yong′ai, Qin Huafang. Study of the ZnO Nanomaterial Field-Emission Cathode Array Based on Graphical Growth[J]. Acta Optica Sinica, 2010, 30(6): 1739

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    Paper Information

    Category: Materials

    Received: Jun. 30, 2009

    Accepted: --

    Published Online: Jun. 7, 2010

    The Author Email: Zhixian Lin (lzx2005000@163.com)

    DOI:10.3788/aos20103006.1739

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