Zheng, Z. and Liao, L. and Yan, B. and Zhang, J. X. and Gong, Hao and Shen, Z. X. and Yu, T. (2009) Enhanced Field Emission from Argon Plasma-Treated Ultra-sharp a-Fe2O3 Nanoflakes. Nanoscale Research Letters, 4 (9). pp. 1115-1119. ISSN 1931-7573 (Print) 1556-276X (Online)
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Abstract
Hematite nanoflakes have been synthesized by a simple heat oxide method and further treated by Argon plasmas. The effects of Argon plasma on the morphology and crystal structures of nanoflakes were investigated. Significant enhancement of field-induced electron emission from the plasma-treated nanoflakes was observed. The transmission electron microscopy investigation shows that the plasma treatment effectively removes amorphous coating and creates plenty of sub-tips at the surface of the nanoflakes, which are believed to contribute the enhancement of emission. This work suggests that plasma treatment technique could be a direct means to improve field-emission properties of nanostructures.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Field emission - Metal oxide - Plasma treated |
| Subjects: | Physical Science > Nanophysics Analytical Science > Metrology and standards in nanotechnology |
| ID Code: | 6941 |
| Deposited By: | Lesley Tobin |
| Deposited On: | 15 Sep 2009 15:33 |
| Last Modified: | 15 Sep 2009 15:33 |
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