کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1670446 | 1008900 | 2010 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Enhanced field emission from ZnO nanoneedles on chemical vapour deposited diamond films Enhanced field emission from ZnO nanoneedles on chemical vapour deposited diamond films](/preview/png/1670446.png)
ZnO nanoneedles were coated on hot filament chemical vapour deposited diamond thin films to enhance the field emission properties of ZnO nanoneedles. The virgin diamond films and ZnO nanoneedles on diamond films were characterized using scanning electron microscopy, X-ray photoelectron spectroscopy and Raman spectroscopy. The field emission studies reveal that the ZnO nanoneedles coated on diamond film exhibit better emission characteristics, with minimum threshold field (required to draw a current density ~ 1 μA/cm2) as compared to ZnO needles on silicon and virgin diamond films. The better emission characteristic of ZnO nanoneedles on diamond film is attributed to the high field-enhancement factor resulting due to the combined effect of the ZnO nanoneedles and diamond film.
Journal: Thin Solid Films - Volume 518, Issue 14, 3 May 2010, Pages 3743–3747