Electronics Research and News
A new theory could yield more reliable communication protocols for digital devices.
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|Attosecond lasers provide the shortest light pulses yet, allowing observation of nature's most short-lived events. UC Berkeley-based researchers have used these lasers for the first time to take snapshots of electrons jumping from silicon atoms into the conduction band of a semiconductor, the key event behind the transistor. They clocked the jump at 450 attoseconds and saw the rebound of the crystal lattice 60 femtoseconds later: a delay 120 times longer than the jump itself. ...> Full Article|
|A laboratory at Purdue University provided a critical part of the world's first transistor in 1947 -- the purified germanium semiconductor -- and now researchers here are on the forefront of a new germanium milestone. ...> Full Article|
|A research team led by NYU WIRELESS director Theodore Rappaport will receive the 2015 IEEE Donald G. Fink Award for pioneering work that explores the underutilized millimeter-wave frequency spectrum for a new generation of mobile communications. The award is given to a single survey, review or tutorial paper published in any of the Institute of Electrical and Electronics Engineers's 170 publications in a calendar year. 5G technology could increase wireless capacity a thousand-fold. ...> Full Article|
As solar panels become less expensive and capable of generating more power, solar energy is becoming a more commercially viable alternative source of electricity. However, the photovoltaic cells now used to turn sunlight into electricity can only absorb and use a small fraction of that light, and that means a significant amount of solar energy goes untapped. A new technology created by researchers from Caltech represents a first step toward harnessing that lost energy.
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MIT chemists have devised a new way to wirelessly detect hazardous gases and environmental pollutants, using a simple sensor that can be read by a smartphone.
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|Toyohashi Tech researchers in Japan have discovered that proton irradiation of gallium nitride causes more damage in p-type material than n- doped layers. This unexpected finding is important for the application of GaN-based devices in extreme environments. ...> Full Article|
|Researchers at Toyohashi University of Technology, Japan have fabricated High photosensitivity back-gated field-effect phototransistors made of only 20 nanometer thick molybdenum diselenide crystals by facile mechanical cleavage and transfer of MoSe2 flakes onto a silicon wafers for next generation for photodetector applications. ...> Full Article|
Studying the motion of electrons in a disordered environment is no simple task. Often, understanding such effects requires a quantum simulator designed to expose them in a different physical setup. This was precisely the approach adopted by Denis Makarov and Leonid Kon'kov in a new study published in EPJ B. They relied on a simulator of electronic motion subjected to noise stemming from a flux of sound waves.
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|Technology has changed rapidly over the last few years with touch feedback, known as haptics, being used in entertainment, rehabilitation and even surgical training. New research, using ultrasound, has developed an invisible 3D haptic shape that can be seen and felt. ...> Full Article|
|Nitrogen-vacancy centers in diamonds could be used to construct vital components for quantum computers. But hitherto it has been impossible to read optically written information from such systems electronically. Using a graphene layer, a team of scientists headed by Professor Alexander Holleitner of the Technische Universität München has now implemented just such a read unit. ...> Full Article|
|Researchers at DESY have used high-speed photography to film one of the candidates for the magnetic data storage devices of the future in action. The film was taken using an X-ray microscope and shows magnetic vortices being formed in ultrafast memory cells. The work reported in the journal Physical Review B provides a better understanding of the dynamics of magnetic storage materials. Magnetic memory cells are found in every computer hard drive. ...> Full Article|
|Researchers from Universidad Carlos III de Madrid are developing a new transmission mechanism with no touching parts, based on magnetic forces which prevent friction and wear and make lubrication unnecessary. It can be applied in space travel and exploration but has also been adapted for use in other areas, such as the railroad and aircraft industries. ...> Full Article|
|The need for the wireless transfer of data will increase significantly in the coming years. Scientists at the Karlsruhe Institute of Technology therefore propose to turn some of the TV frequencies that will become free into common property and to use it to extend existing wireless networks instead of using the frequencies for mobile communications. Their study, published in the international journal Telecommunications Policy, recommends that the additional frequencies not be marketed but made available to the population and companies at no cost. ...> Full Article|
|Stanford engineers have invented a material designed to help cool buildings. The material reflects incoming sunlight, and it sends heat from inside the structure directly into space as infrared radiation. ...> Full Article||