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Albert Chawanda
Researcher at Midlands State University
Publications - 35
Citations - 513
Albert Chawanda is an academic researcher from Midlands State University. The author has contributed to research in topics: Schottky diode & Schottky barrier. The author has an hindex of 11, co-authored 35 publications receiving 443 citations. Previous affiliations of Albert Chawanda include University of Pretoria.
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Piezoelectric Energy Harvesting Devices: An Alternative Energy Source for Wireless Sensors
TL;DR: In this article, the authors present a concise review of piezoelectric microgenerators and nanogenerators as a renewable energy resource to power wireless sensors, which can convert mechanical strain energy into electrical energy.
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The dependence of barrier height on temperature for Pd Schottky contacts on ZnO
Wilbert Mtangi,F.D. Auret,Cloud Nyamhere,P.J. Janse van Rensburg,Albert Chawanda,Mmantsae Diale,Jackie M. Nel,Walter E. Meyer +7 more
TL;DR: In this article, temperature dependent currentvoltage (I-V) and capacitance-voltage measurements have been performed on Pd/ZnO Schottky barrier diodes in the range 60-300 K.
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Thermal annealing behaviour of platinum, nickel and titanium Schottky barrier diodes on n-Ge (1 0 0)
Albert Chawanda,Albert Chawanda,Cloud Nyamhere,F.D. Auret,Wilbert Mtangi,Mmantsae Diale,Jackie M. Nel +6 more
TL;DR: In this paper, the performance of the Schottky barrier diodes was investigated under various annealing conditions and it was concluded that the onset temperature in 30-nm Ni- and Pt/n-Ge (1-0-0) systems occurs at 500-600-C and 600-700-C, respectively, with as-deposited ideality factors as low as 1.09.
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Analysis of current–voltage measurements on Au/Ni/n-GaN Schottky contacts in a wide temperature range
Wilbert Mtangi,P.J. Janse van Rensburg,Mmantsae Diale,F.D. Auret,Cloud Nyamhere,Jackie M. Nel,Albert Chawanda +6 more
TL;DR: In this article, the National Research Foundation (NRF) of South Africa provided financial support for the study of the effects of genetic mutations on the human brain and its connections to cancer.
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Finite Element Modeling of a Piezoelectric Composite Beam and Comparative Performance Study of Piezoelectric Materials for Voltage Generation
TL;DR: In this article, the authors used the COMSOL multiphysics finite element package to study the direct piezoelectric effect when an external load is applied at the free end of a piezelectric composite beam, and the primary output parameters such as electric potential and electric field were studied as a function of input strain and stress.