Researchers under ETH-Zurich professor Colombo Bolognesi are working on a new gallium nitride transistor technology using silicon(110) as a substrate. As the new combination of materials has many advantages, gallium nitride is poised to conquer the electronics market and help power the green revolution.
Researchers have succeeded in dramatically increasing the energy density of supercapacitors, which are used to store electrical energy. This was realized by developing a new electrode in which graphene nanosheets are stacked in a layered structure with carbon nanotubes sandwiched between the graphene layers.
The Singapore Institute of Manufacturing Technology (SIMTech), a research institute of the Agency for Science, Technology and Research (A*STAR), launched the SIMTech Microfluidics Foundry (SMF) today. SMF offers an integrated spectrum of capabilities for developing and manufacturing of specialised and low-cost microfluidic devices for applications in healthcare, biomedical, pharmaceutical, energy, water quality monitoring and chemical processing.
Assembly of nanostructures using DNA may lead to the production of new materials with a wide range of applications from electronics to tissue engineering. Researchers in the Institute for Nanoscience and Engineering at the University of Arkansas have produced building blocks for such material by controlling the number, placement and orientation of DNA linkers on the surface of colloidal nanoparticles.
Human devices, from light bulbs to iPods, send information using electrons. Human bodies and all other living things, on the other hand, send signals and perform work using ions or protons. Materials scientists at the University of Washington have built a novel transistor that uses protons, creating a key piece for devices that can communicate directly with living things.
Inducing and controlling magnetization in ferromagnetic semiconductors using electric rather than magnetic fields could lead to smaller and more energy-efficient spintronic devices. Until now, however, this electrical control has only been achieved at cryogenic temperatures in magnetic semiconductors. Scientists in Japan have now extended electrical control all the way up to ambient temperature in cobalt-doped titanium dioxide, paving the way for room-temperature spintronics.
A radical new way of making structures visible at the nano level has been developed at Johannes Gutenberg University Mainz. This new method makes it possible to determine with precision the arrangement of atoms and molecules in a diverse range of materials from cement to pharmaceuticals.