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IFM's Gayathri Devi Rajmohan has won the People's Prize in Deakin's Three Minute Thesis competition for 2013.
Meet the team at Deakin making it happen.
Dr Xiujuan Jane Dai
+61 3 522 72427
IFM's custom-designed plasma laboratory for tailoring surfaces/interfaces and producing new materials opened in 2012. The plasmas we use are not just cool, they are 'cold'. We only use non-equilibrium plasmas in which only the very light electrons are hot. This means that they do not damage delicate materials by heating.
This system combines plasma and thermal energy to fabricate nano-semiconductors. It can be used for nano-structuring, element doping, and surface cleaning / functionalization. Several plasma sources have been designed to enable different types of nano-fabrication.
We are aiming at surface functionalization of nanopowders or other forms of nano-materials (nanotubes etc). This system addresses the challenge of achieving uniform treatment with a high functional group density and easy handling. It enables uniform surface functionalization of nano-powders (tubes, wires, belts, particles etc).
We have also developed a nanosecond pulsed atmospheric pressure plasma (NPAPP) system for applications in wastewater treatment, biomedicine, and material surface treatment. The system consists of a nanosecond pulsed generator and several different electrodes for specific applications. A plasma can be generated in a liquid as well as gases. The advantage of using an atmospheric pressure plasma is that it does not require a vacuum system so that it can be more easily used at an industrial scale. The very short pulses prevent filament discharges which can give localised damage and highly uneven treatment in gas plasmas. This system combines a pulsed electric field, UV radiation, O₃, and free radicals.
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