Analysis of thermionic emission from electrodeposited Ni–Si Schottky barriers
Kiziroglou, M.E., Zhukov, A., LI, X, Gonzalez, D.C., de Groot, P.A.J., Bartlett, Philip N. and de Groot, C.H. (2006) Analysis of thermionic emission from electrodeposited Ni–Si Schottky barriers. Solid State Communications, 140, (11-12), 508-513. (doi:10.1016/j.ssc.2006.09.027).
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Description/Abstract
Ni–Si Schottky barriers are fabricated by electrodeposition using n on n+ Si substrates. I–V, C–V and low temperature I–V measurements are presented. A high-quality Schottky barrier with extremely low reverse leakage current is revealed. The results are shown to fit an inhomogeneous barrier model for thermionic emission over a Schottky barrier proposed by Werner and Guttler [J.H. Werner, H.H. Guttler, Barrier inhomogeneities at Schottky contacts, J. Appl. Phys. 69 (3) (1991) 1522–1533]. A mean value of 0.76 V and a standard deviation of 66 mV is obtained for the Schottky barrier height at room temperature with a linear bias dependence. X-ray diffraction and scanning electron microscopy measurements reveal a polycrystalline Ni film with grains that span from the Ni–Si interface to the top of the Ni layer. The variation in Ni orientation is suggested as a possible source of the spatial distribution of the Schottky barrier height
| Item Type: | Article |
|---|---|
| ISSNs: | 0038-1098 (print) |
| Related URLs: | |
| Keywords: | magnetic materials, electrodeposition, schottky barriers |
| Subjects: | Q Science > QD Chemistry Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > School of Electronics and Computer Science University Structure - Pre August 2011 > School of Physics and Astronomy University Structure - Pre August 2011 > School of Chemistry |
| Item ID: | 143981 |
| Date Deposited: | 18 Jun 2010 08:47 |
| Last Modified: | 02 Mar 2012 12:16 |
| Contributors: | Kiziroglou, M.E. (Author) Zhukov, A. (Author) LI, X (Author) Gonzalez, D.C. (Author) de Groot, P.A.J. (Author) Bartlett, Philip N. (Author) de Groot, C.H. (Author) |
| Date: | December 2006 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/143981 |
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