Show simple item record

dc.contributor.authorGöksu, T. and Yildirim, N. and Korkut, H. and Özdemir, A.F. and Turut, A. and Köke, A.
dc.date.accessioned2021-04-08T12:10:49Z
dc.date.available2021-04-08T12:10:49Z
dc.date.issued2010
dc.identifier10.1016/j.mee.2009.10.012
dc.identifier.issn01679317
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-77955227478&doi=10.1016%2fj.mee.2009.10.012&partnerID=40&md5=cb55b823b0d1e3bb0fed363179ac2886
dc.identifier.urihttp://acikerisim.bingol.edu.tr/handle/20.500.12898/5072
dc.description.abstractWe have measured the I-V characteristics of Ti/n-GaAs Schottky barrier diodes (SBDs) in the temperature range of 60-320 K by the steps of 20 K. The SBDs have been prepared by magnetron DC sputtering. The ideality factor n of the device has remained almost unchanged between 1.02 and 1.04 from 120 to 320 K, and 1.10 at 100 K. Therefore, it has been said that the experimental I-V data are almost independent of the sample temperature and quite well obey the thermionic emission (TE) model at temperatures above 100 K. Furthermore, the barrier height (BH) Φb0 slightly increased with a decrease in temperature, 320-120 K. The Φb0 versus temperature plot from intercepts of the forward-bias ln I versus V curves has given a BH temperature coefficient of α = -0.090 meV/K. The Norde's function has been easily carried out to determine the temperature-dependent series resistance values because the TE current dominates in the I-V characteristics. Therefore, the Φb0 versus temperature plot from the Norde's function has also given a BH temperature coefficient value of α = -0.089 meV/K. Thus, the negligible temperature dependence or BH temperature coefficient close to zero has been attributed to interface defects responsible for the pinning of the Fermi level because their ionization entropy is only weakly dependent on the temperature. © 2009 Elsevier B.V. All rights reserved.
dc.language.isoEnglish
dc.sourceMicroelectronic Engineering
dc.titleBarrier height temperature coefficient in ideal Ti/n-GaAs Schottky contacts


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record