Journal
SOLID STATE COMMUNICATIONS
Volume 142, Issue 8, Pages 425-428Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2007.03.037
Keywords
nanorods; ZnO; field emission; thermal vapor deposition
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ZnO nanorods with different morphologies were grown by changing the temperature of the process using the thermal vapor deposition method without a catalyst. The X-ray diffraction pattern of these nanorods showed a single-crystalline wurtzite structure and a c-axis orientation. The turn-on fields of the pencil-like and normal ZnO nanorods were 1.7 V/mu m and 2.2 V/mu m at a current density of 0.1 mu A/cm(2), and the emission current density from the ZnO nanorods reached 1 mA/cm(2) at bias fields of 5.1 V/mu m and 7.5 V/mu m, respectively. The results indicated that ZnO nanorods could give sufficient brightness as a field emitter in a flat panel display. (c) 2007 Elsevier Ltd. All rights reserved.
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