Researchers have demonstrated how noise in a microwave amplifier is limited by self-heating at very low temperatures (J Schleeh et al, ‘Phonon black-body radiation limit for heat dissipation in electronics’, Nature Materials, 10 ...
Tags: Microwave Amplifier, transistor
Researchers from Ohio State University (OSU) and University of California–Irvine (UCI) have developed a band engineering technique to improve the results from photo-electro-chemical (PEC) etch of nitride semiconductors [Prashanth ...
Researchers in Taiwan have applied a non-vacuum process to deposit aluminium oxide (Al2O3) passivation for nitride semiconductor high-electron-mobility transistors (HEMTs) [Bo-Yi Chou et al, IEEE Electron Device Letters, published online 11 ...
Tags: Electrical, Electronics, Transistor
Ubiquitous but frustrating, lithium-ion batteries fade because the materials lose their structure in response to charging and discharging. This structural change is closely related to the formation of electron-rich regions within the ...
Tags: electrons, The Lithiation Front, Silicon
It looks like a worm and moves like a worm – sort of. But it is a previously unidentified microscopic species of mite that was discovered by a graduate student on The Ohio State University campus. Affectionately dubbed the "Buckeye ...
Tags: Agriculture
Electron microscopy and spectroscopy are great tools for peering into matter on the molecular scale. But they’re not terribly effective if that matter happens to be biological. Researchers at the University of Illinois in Chicago ...
Tags: Clear Image, Biomolecule, liquid stage, microscope
Researchers in Japan have created indium phosphide (InP) nanowire (NW) solar cell structures with internal quantum efficiencies (IQEs) that beat the performance of bulk InP-based devices in the short-wavelength range of 300-570nm [Masatoshi ...
Tags: INP Nanowire solar cells, InP SA-MOVPE p-type, InP substrates
After studying specimens from the Nearctic deposited in the United States National Museum of Natural History and some specimens in the Canadian National Collection of Insects, researchers have found 16 new species of wasps from the Nearctic ...
Tags: new species, wasps, Nearctic region
One of the biggest challenges facing rechargeable batteries with lithium (Li) electrodes is the growth of dendrites, which can short-circuit the batteries and cause complete failure. Although dendrites do their damage in the battery's ...
Tags: Electronics, Batteries
At the IEEE International Electron Devices Meeting (IEDM 2013) in Washington DC (9-11 December), epiwafer foundry and substrate maker IQE plc of Cardiff, Wales, UK, Pennsylavania State University and the US Commerce Department's National ...
Tags: Low-Power Tunneling Transistor, Electrical, Electronics
University of California Santa Barbara (UCSB) and Fuji Electric Corp of America have been developing indium gallium nitride (InGaN) solar cell structures in efforts to extend the conversion efficiency of multi-junction photovoltaic (PV) ...
Tags: Nitride Barriers, Electrical
Japan’s Tottori University has produced blue-green light-emitting diode (LED) structures using zinc sulfide telluride (ZnSTe) material [Kunio Ichino et al, Appl. Phys. Express, vol6, p112102, 2013]. The researchers see their work as ...
Plasma process equipment maker Plasma-Therm LLC of St Petersburg, FL, USA has introduced new MicroDieSingulator (MDS) systems. The systems deliver plasma-based singulation of semiconductor dies from 4-inch, 6-inch, and 8-inch wafers mounted ...
Tags: Plasma-Therm, MDS Systems
One problem in developing more efficient organic LED light bulbs and displays for TVs and phones is that much of the light is polarized in one direction and thus trapped within the LED. University of Utah physicists believe they have solved ...
A contentious controversy surrounds the high intensity of indium gallium nitride (InGaN) LEDs, with experts split on whether or not indium-rich clusters within the material provide their remarkable efficiency. Now, researchers from the ...
Tags: InGaN LEDs, Electronics