Marathe, Sonali ; Koinkar, Pankaj ; Ashtaputre, Shriwas ; Sathe, Vasant ; More, M. A. ; Kulkarni, Sulabha Kashinath (2010) Enhanced field emission from ZnO nanoneedles on chemical vapour deposited diamond films Thin Solid Films, 518 (14). pp. 3743-3747. ISSN 0040-6090
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00406...
Related URL: http://dx.doi.org/10.1016/j.tsf.2009.10.118
Abstract
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.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Field Emission; Zinc Oxide; Diamond Thin Film; Field-enhancement Factor; X-ray Photoelectron Spectroscopy; Raman Spectroscopy; Chemical Deposition |
| ID Code: | 17950 |
| Deposited On: | 17 Nov 2010 13:27 |
| Last Modified: | 23 Feb 2011 07:06 |
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