کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1787309 | 1023437 | 2007 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and field emission of patterned ZnO nanorods Synthesis and field emission of patterned ZnO nanorods](/preview/png/1787309.png)
A simple and self-catalytic method has been developed for synthesizing finely patterned ZnO nanorods on ITO-glass substrates under a low temperature of 500 °C. The patterned ZnO nanorod arrays, a unit area is of ∼400 × 100 μm2, are synthesized via vapor phase transport method. The surface morphology and composition of the as-synthesized ZnO nanorods are characterized by means of scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The mechanism of formation of ZnO nanorods is also discussed. The measurement of field emission (FE) reveals that the as-synthesized ZnO nanorods arrays have a turn-on field of 3.3 V/μm at the current density of 0.1 μA/cm2 and a low threshold field of 6.2 V/μm at the current density of 1 mA/cm2. So this approach must have a potential application of fabricating micropatterned oxide thin films used in FE-based flat panel displays.
Journal: Current Applied Physics - Volume 7, Issue 6, September 2007, Pages 702–706