Three-minute thesis: Piezoelectric energy harvesting – human movements will power smartphones

Scientist 

Iman Izadgoshasb, Southern Cross University

PhD title

Vibration based energy harvesting using piezoelectric energy harvester

Summary

“Nowadays, most of electronic devices rely on electro-chemical batteries as energy source, which possess limited lifespan. Energy harvesters are designed to capture ambient power and convert it into usable electricity. In my study I aim to use piezoelectric materials to harvest energy from human motions. Piezoelectric materials can convert mechanical energy of motion and vibration to electricity. However, the frequency up-conversion method should be used to increase the efficiency. The multi-impact harvester is made in the lab which can harvest energy from human motions continuously. It can power portable devices such as mobile phones or pacemakers. Results show success.”

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The finals of the 2017 Asia-Pacific Three-Minute Thesis (3MT) competition, which challenges PhD students to communicate their research in a snappy three-minute presentation, were held on the 29 September at the University of Queensland, St Lucia Campus. Competitors came from 55 Universities from across Australia, New Zealand and North and South-East Asia. 

The presentations were judged by distinguished figures in Australian science including Cosmos editor-in-chief Elizabeth Finkel.