Energy analysis of field emitted electrons from a ZnO tetrapod

Al-Tabbakh, Ahmed A. ; More, Mahendra A. ; Joag, Dilip S. ; Ramgir, Niranjan S. ; Mulla, Imtiaz S. ; Pillai, Vijayamohanan K. (2007) Energy analysis of field emitted electrons from a ZnO tetrapod Applied Physics Letters, 90 (16). 162102_1-162102_3. ISSN 0003-6951

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The experimental total energy distribution (TED) of the field emitted electrons from a single pod of a ZnO tetrapod has been obtained, exhibiting a two-peak feature. The energy difference between the two peaks in the TED is found to be nearly equal to the band gap of the bulk ZnO. The results show that field emitted electrons originate from both the conduction and valence bands. The peak position dependence on the applied voltage has also been observed. In the present case, the size of the ZnO tetrapod is not small enough to reflect the quantum confinement effects.

Item Type:Article
Source:Copyright of this article belongs to American Institute of Physics.
Keywords:Zinc Compounds; II-VI Semiconductors; Wide Band Gap Semiconductors; Valence Bands; Energy Gap; Conduction Bands; Total Energy; Electron Field Emission
ID Code:68934
Deposited On:08 Nov 2011 04:41
Last Modified:08 Nov 2011 04:41

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