Sameera, I and Bhatia, Ravi and Prasad, V (2012) Efficient field emission properties of ZnO (core)/graphite (shell) nanowires. In: MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 177 (13). pp. 1090-1093.
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In this work the field emission studies of a new type of field emitter, zinc oxide (ZnO) core/graphitic (g-C) shell nanowires are presented. The nanowires are synthesized by chemical vapor deposition of zinc acetate at 1300 degrees C Scanning and transmission electron microscopy characterization confirm high aspect ratio and novel core-shell morphology of the nanowires. Raman spectrum of the nanowires mat represents the characteristic Raman modes from g-C shell as well as from the ZnO core. A low turn on field of 2.75 V/mu m and a high current density of 1.0 mA/cm(2) at 4.5 V/mu m for ZnO/g-C nanowires ensure the superior field emission behavior compared to the bare ZnO nanowires. (C) 2012 Elsevier B.V. All rights reserved.
|Item Type:||Journal Article|
|Additional Information:||Copyright for this article belongs to ELSEVIER SCIENCE|
|Keywords:||Nanostructures;Scanning and transmission electron microscopy;Field emission|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||08 Nov 2012 11:08|
|Last Modified:||08 Nov 2012 11:08|
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