28 June 2015 to 3 July 2015
Africa/Johannesburg timezone
SAIP2015 Proceeding published on 17 July 2016

Electrical characteristics of Pd Schottky contacts on ZnO and AZO nanoparticles

30 Jun 2015, 16:10
1h 50m
Board: A.377
Poster Presentation Track A - Division for Physics of Condensed Matter and Materials Poster1

Speaker

Mr Fred Joe Nambala (University of Pretoria)

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD, N/A)?

PhD

Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)

Yes

Abstract content <br> &nbsp; (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>

Aluminium (Al) doped Zinc oxide (ZnO), AZO, of different Al atomic percentages was prepared by a sol-gel method and deposited on microscope glass plates (SiO2) and a-Si/SiO2 substrates. Resistivity and Hall measurements were conducted on the samples. Palladium (Pd) contacts were deposited on the AZO nanoparticles by resistive evaporation. Current–voltage (I–V) and capacitance–voltage (C–V) measurements were performed on Pd /ZnO nanoparticles Schottky contacts at room temperature (RT) and in the range 60–300 K. The ideality factor (n), barrier height (ΦB) and carrier concentrations (ND) were calculated from the forward bias characteristics. Using temperature dependent I—V characteristics, the barrier height was observed to increase with increasing temperature. The C–V barrier height decreases with temperature increase.

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

No

Main supervisor (name and email)<br>and his / her institution

M Diale, PhD. University of Pretoria, Physics Department.

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

Yes

Primary author

Mr Fred Joe Nambala (University of Pretoria)

Co-author

Dr Mmantsae Diale (University of Pretoria)

Presentation Materials

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