ETH Zurich researchers have built a transistor whose crucial element is a carbon nano-tube, suspended between two contacts, with outstanding electronic properties. A novel fabrication approach allowed the scientists to construct a transistor with no gate hysteresis. This opens up new ways to manufacture nano-sensors and components that consume particularly little energy.
The limits of conventional microtechnology, based mainly on silicon, have been reached. Smaller and better is achievable only by using new materials and technologies. This is why research hopes for great things from carbon nanotubes (CNTs), ultra-tiny tubules a few nanometres in diameter, made of pure carbon. CNTs have remarkable structural, mechanical and electronic properties. The research group led by Christofer Hierold, Professor of Micro and Nanosystems at ETH Zurich, aims to use these in nano-electronics components. He and his research group, in particular the doctoral student Matthias Muoth, have now succeeded in constructing a hysteresis-free field effect transistor based on an individual CNT with metallic nano-contacts. The researchers reported this recently in “Nature Nanotechnology”.
The limits of conventional microtechnology, based mainly on silicon, have been reached. Smaller and better is achievable only by using new materials and technologies. This is why research hopes for great things from carbon nanotubes (CNTs), ultra-tiny tubules a few nanometres in diameter, made of pure carbon. CNTs have remarkable structural, mechanical and electronic properties. The research group led by Christofer Hierold, Professor of Micro and Nanosystems at ETH Zurich, aims to use these in nano-electronics components. He and his research group, in particular the doctoral student Matthias Muoth, have now succeeded in constructing a hysteresis-free field effect transistor based on an individual CNT with metallic nano-contacts. The researchers reported this recently in “Nature Nanotechnology”.
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