Speaker
Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)
Yes
Level for award<br> (Hons, MSc, <br> PhD, N/A)?
N/A
Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?
Yes
Abstract content <br> (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>
Au/Ni contacts have been resistively fabricated on highly doped n-type 4H-SiC. The effect of annealing temperature on the electrical characteristics of the Schottky barrier diodes (SBDs) has been successfully investigated using current-voltage (I-V) and capacitance-voltage (C-V) techniques measured at room temperature (~300 K). Prior to the annealing of the contacts, the I-V measurements results confirmed the good rectification of the SBDs with ideality factor, Schottky barrier height and series resistance of 1.06, 1.33 eV and 7 Ω, respectively. From the I-V and C-V measurements, a decrease in the quality of the contacts with increasing annealing temperature was observed from the values of electronic parameters such as Schottky barrier height, ideality factor, series resistance and saturation current and net donor concentration obtained. The SBDs maintained their rectification quality up to the annealing temperature of 500 °C before the contacts start deteriorate with increase in annealing temperature.
Apply to be<br> considered for a student <br> award (Yes / No)?
No
Main supervisor (name and email)<br>and his / her institution
Prof. W. E. Meyer (wmeyer@up.ac.za
University of Pretoria
