Tag: semiconductors
Manijeh Razeghi: The curious life of communication physics
Professor Manijeh Razeghi of Northwestern University, USA, is a pioneer in the world of semiconductors and optoelectronic devices. She was central to the optical fibre telecommunication revolution in the 1980s and 1990s – an integral part of the subsequent information age. In this interview with Research Outreach, Razeghi reveals why she is just as passionate and curious now as when […]
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Understanding field scattering in AlGaN/GaN heterostructure field-effect transistors
Field-effect transistors featuring stacked layers of semiconductors are important elements of many electrical devices, especially in wireless communication systems. Through a series of studies, research led by Professor Zhaojun Lin at Shandong University, China, has identified one particular mechanism driving an unavoidable limitation in these devices. By drawing from their new theoretical description of ‘polarisation Coulomb field scattering’, the team […]
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Hydrogen? Just add water and sunlight
Hydrogen has been sold to the public as having the potential to be the ultra-clean fuel for the future’s economy. What’s less likely to be mentioned is that 96% of hydrogen is produced from natural gas, coal or other fossil fuels – producing it using renewable electricity is simply too expensive. To realise hydrogen’s full potential, the world needs better […]