Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1546289 | Physica E: Low-dimensional Systems and Nanostructures | 2009 | 4 Pages |
Abstract
ZnO nanoinjectors were synthesized on Au-coated Si substrate by direct thermal evaporation of zinc powder at a low temperature of 600 °C and atmospheric pressure. Field-emission scanning electron microscopy and X-ray diffraction were applied to study the structural characteristics of the sample. The result indicated that the nanoinjector sample consisted of single-crystalline wurtzite structures which were preferentially oriented in the ã0 0 1ã direction. The field emission of the sample started at a turn-on field of 1.5 V/μm at a current density of 1 μA/cm2, while the emission current density reached about 1 mA/cm2 at an applied field of 5.0 V/μm.
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Authors
Xiaxi Yang, Wei Lei, Xiaobing Zhang, Ke Qu, Jin Zhang,