Popular Semiconductors News and Current Events

Popular Semiconductors News and Current Events, Semiconductors News Articles.
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Just add water
Chemists uncover a mechanism behind doping organic semiconductors (2019-09-16)

Template to create superatoms, created by VCU researchers, could make for better batteries
Virginia Commonwealth University researchers have discovered a novel strategy for creating superatoms -- combinations of atoms that can mimic the properties of more than one group of elements of the periodic table. These superatoms could be used to create new materials, including more efficient batteries and better semiconductors; a core component of microchips, transistors and most computerized devices. (2018-06-21)

Engineering material magic
University of Utah engineers have discovered a new kind of 2-D semiconducting material for electronics that opens the door for much speedier computers and smartphones that also consume a lot less power. (2016-02-15)

Simulation and experiment help TU Dresden researchers study next-generation semiconductors
Researchers at TU Dresden are refining methods for studying next-generation organic semiconductors by using a combination of experiments and supercomputing resources at the Leibniz Supercomputing Centre. (2018-03-08)

Semiconductor breakthrough may be game-changer for organic solar cells
In an advance that could push cheap, ubiquitous solar power closer to reality, University of Michigan researchers have found a way to coax electrons to travel much further than was previously thought possible in the materials often used for organic solar cells and other organic semiconductors. (2018-01-17)

Keep the light off: A material with improved mechanical performance in the dark
Nagoya University researchers found that zinc sulfide crystals were brittle under normal lighting conditions at room temperature, but highly plastic when deformed in complete darkness. Deformation of zinc sulfide crystals in the dark also narrowed their band gap, which controls electrical conductivity. The team's findings showed the mechanical and electronic properties of inorganic semiconductors are sensitive to light, revealing a possible route to engineer the performance of inorganic semiconductors, which are important in electronics. (2018-05-17)

Searching beyond graphene for new wonder materials
Graphene, the two-dimensional, ultra lightweight and super-strong carbon film, has been hailed as a wonder material since its discovery in 2004. Now researchers are going beyond graphene and preparing other 2-D films with extraordinary properties for applications in wearable electronics, sensors and energy storage. The cover story in Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society, surveys this expanding landscape. (2017-05-31)

Nanostructure boosts stability of organic thin-film transistors
A nanostructured gate dielectric may have addressed the most significant obstacle to expanding the use of organic semiconductors for thin-film transistors. The structure, composed of a fluoropolymer layer followed by a nanolaminate made from two metal oxide materials, serves as gate dielectric and protects the organic semiconductor - which had previously been vulnerable to damage from the ambient environment. (2018-01-12)

Breakthrough could launch organic electronics beyond cell phone screens
A discovery by an international team of researchers from Princeton University, the Georgia Institute of Technology and Humboldt University in Berlin points the way to more widespread use of an advanced technology generally known as organic electronics. (2017-11-17)

Solar cell design with over 50 percent energy-conversion efficiency
Solar cells convert the sun's energy into electricity by converting photons into electrons. A new solar cell design could raise the energy conversion efficiency to over 50 percent by absorbing the spectral components of longer wavelengths that are usually lost during transmission through the cell. These findings were published on April 6 in the online edition of Nature Communications. (2017-04-23)

Kesterite solar cells: Germanium promises better opto-electronic properties than tin
Specific changes in the composition of kesterite-type semiconductors make it possible to improve their suitability as absorber layers in solar cells. As a team at the Helmholtz-Zentrum Berlin showed, this is particularly true for kesterites in which tin was replaced by germanium. The scientists examined the samples using neutron diffraction at BER II and other methods. The work was selected for the cover of the journal CrystEngComm. (2018-03-29)

Russian scientists found excitons in nickel oxide for the first time
'We first found excitons with charge transfer at the boundary of fundamental adsorption in nickel oxide and at the impurity adsorption edge in magnesium oxide. These results may be of interest to specialists in theoretical physics who study the band structure of oxides with strong correlations. NiO has been considered as prototype of such oxides for a long time, and many calculation schemes have been tested using this object' concludes Anatoly Zatsepin. (2018-01-12)

Artificial 'skin' gives robotic hand a sense of touch
A team of researchers from the University of Houston has reported a breakthrough in stretchable electronics that can serve as an artificial skin, allowing a robotic hand to sense the difference between hot and cold, while also offering advantages for a wide range of biomedical devices. (2017-09-13)

Mass production of new class of semiconductors closer to reality
Two Waterloo chemists have made it easier for manufacturers to produce a new class of faster and cheaper semiconductors. (2018-02-09)

Flexible TVs and high performance wearable smart tech one step closer
Flexible televisions, tablets and phones as well as 'truly wearable' smart tech are a step closer thanks to a nanoscale transistor created by researchers at The University of Manchester and Shandong University in China. (2018-04-18)

A curious quirk brings organic diode lasers one step closer
Since their invention in 1962, semiconductor diode lasers have revolutionized communications and made possible information storage and retrieval in CDs, DVDs and Blu-ray devices. These diode lasers use inorganic semiconductors grown in elaborate high vacuum systems. Now, a team of researchers from Penn State and Princeton University have taken a big step toward creating a diode laser from a hybrid organic-inorganic material that can be deposited from solution on a laboratory benchtop. (2017-11-20)

The next generation of power electronics? Gallium nitride doped with beryllium
Physicists at Aalto University have made a breakthrough in revising methods largely discarded 15 years ago. They have discovered a microscopic mechanism that will allow gallium nitride semiconductors to be used in electronic devices that distribute large amounts of electric power. (2017-11-09)

Dawn of organic single crystal electronics
Researchers at the Institute for Molecular Science, National Institutes of Natural Sciences (Japan) have developed a method for high performance doping of organic single crystal. Furthermore, they succeeded in the Hall effect measurement of the crystal -- the world's first case. The research has been published in the Advanced Materials. (2017-04-28)

Cheaper, less toxic and recyclable light absorbers for hydrogen production
Achieving artificial photosynthesis in solution remains limited by the use of costly and toxic metal-based compounds to harvest light. Researchers at CNRS, CEA and the Université Grenoble Alpes propose an efficient alternative using semiconductor nanocrystals (also called quantum dots) based on cheaper and less toxic elements, such as copper, indium and sulfur. (2018-04-10)

Energy conversion: Optical 'overtones' for solar cells
NIM scientists from Ludwig-Maximilians-Universitaet (LMU) in Munich have found a new effect regarding the optical excitation of charge carriers in a solar semiconductor. It could facilitate the utilization of infrared light, which is normally lost in solar devices. (2018-04-19)

Spin current detection in quantum materials unlocks potential for alternative electronics
A new method that precisely measures the mysterious behavior and magnetic properties of electrons flowing across the surface of quantum materials could open a path to next-generation electronics. A team of scientists has developed an innovative microscopy technique to detect the spin of electrons in topological insulators, a new kind of quantum material that could be used in applications such as spintronics and quantum computing. (2017-10-13)

Computational chemistry supports research on new semiconductor technologies
Researchers at the University of Marburg highlight the ability of computational chemistry approaches using high-performance computing to reveal interesting phenomena that occur between organic molecules and surfaces. They also demonstrate more generally how these interactions can be understood with respect to the molecular and solid state world. Understanding surface chemistry in this way could be useful in designing patterned surfaces, a goal of scientists working on the next generation of more powerful, more efficient semiconductors. (2018-11-19)

Organic semiconductors: One transistor for all purposes
In mobiles, fridges, planes - transistors are everywhere. But they often operate only within a restricted current range. Ludwig-Maximilians-Universitaet (LMU) in Munich physicists have now developed an organic transistor that functions perfectly under both low and high currents. (2019-03-21)

New oxide and semiconductor combination builds new device potential
Researchers at Yale University have now grown a 2DEG system on gallium arsenide, a semiconductor that's efficient in absorbing and emitting light. This development is promising for new electronic devices that interact with light, such as new kinds of transistors, superconducting switches and gas sensors. (2018-01-10)

Lobachevsky University researchers obtain magnetic semiconductor layers of a new type
Researchers at the laboratory of spin and optical electronics of the Lobachevsky University (Nizhny Novgorod, Russia) have obtained a new type of magnetic semiconductor layers, which demonstrate spin-dependent phenomena in the transport of charge carriers at room temperature. (2018-01-22)

Molecular switch for controlling color and fluorescence
Researchers in Japan have developed a molecular switching technique to control the visible color and fluorescent properties of a compound by using hydrogen and oxygen gas. This innovative work is environmentally friendly since it uses the energy from the two gases to switch the color and fluorescence of a compound and produces only water as a byproduct. (2016-07-14)

Materials research team lights the way for more efficient LEDs
NRL researchers, working with an international team of physicists, show that cesium lead halide perovskites nanocrystals emit light much faster than conventional light emitting materials, enabling more efficient lasers and LEDs. (2018-01-31)

Atomically thin light-emitting device opens the possibility for 'invisible' displays
UC Berkeley engineers have built a bright-light emitting device that is millimeters wide and fully transparent when turned off. The light emitting material in this device is a monolayer semiconductor, which is just three atoms thick. (2018-03-26)

Researchers report advances in stretchable semiconductors, integrated electronics
Researchers from the University of Houston have reported significant advances in stretchable electronics, moving the field closer to commercialization. (2019-02-01)

Controlling the crystal structure of gallium oxide
Precise control of the atomic structure of gallium-oxide layers improves the development of high-power electronic devices. (2018-05-03)

UNIST engineers oxide semiconductor just single atom thick
A new study, affiliated with South Korea's Ulsan National Institute of Science and Technology, has introduced a new technique that efficiently isolates circulating tumor cells from whole blood at a liquid-liquid interface. (2017-02-08)

Newly-discovered semiconductor dynamics may help improve energy efficiency
Researchers examining the flow of electricity through semiconductors have uncovered another reason these materials seem to lose their ability to carry a charge as they become more densely 'doped.' (2017-09-05)

Taking control at the junction
Fine tuning the composition of nitride alloys can further the development of optical and electronic interface devices. (2018-01-22)

Scalable two-dimensional materials advance future-gen electronics
Since the discovery of the remarkable properties of graphene, scientists have increasingly focused research on the many other two-dimensional materials possible, both those found in nature and those concocted in the lab. However, growing high-quality, crystalline 2-D materials at scale has proven a significant challenge. (2018-02-14)

'Indistinguishable photons' key to advancing quantum technologies
Indistinguishable photons are critical for quantum information processing, and researchers are tapping nitrogen impurity centers found within gallium arsenide to generate them -- making a significant contribution toward realizing a large number of indistinguishable single-photon sources. (2017-04-11)

Semiconductor-free microelectronics are now possible, thanks to metamaterials
Engineers at the University of California San Diego have fabricated the first semiconductor-free, optically-controlled microelectronic device. Using metamaterials, engineers were able to build a microscale device that shows a 1,000 percent increase in conductivity when activated by low voltage and a low power laser. The discovery paves the way for microelectronic devices that are faster and capable of handling more power, and could also lead to more efficient solar panels. (2016-11-08)

Solid-state physics offers insights into dielectric properties of biomaterials
In this paper, researchers characterize the behavior of proteins, considered as classical amorphous semiconductors, with the help of the formalism of condensed matter physics. The authors have clearly shown the powerful methodology and instrumentation of condensed matter physics to be effective for fundamental research into the electrodynamics of biological objects. The next step could involve the application to biomaterials research of the wide range of other theories and models that have been effectively used by the physics community for many decades. (2018-01-09)

Bringing carbon-silicon bonds to life
Following a few tweaks, heme proteins can efficiently catalyze the formation of carbon-silicon bonds, which are not found in any known biological molecules, nor capable of being created through any existing biological processes. (2016-11-24)

New way of producing intense radiation could offer less harmful alternative to x-rays
A new source of intense terahertz (THz) radiation, which could offer a less harmful alternative to x-rays and has strong potential for use in industry, is being developed by scientists at the University of Strathclyde and Capital Normal University in Beijing. (2018-04-27)

Polymer crystals hold key to record-breaking energy transport
Scientists from the universities of Bristol and Cambridge have found a way to create polymeric semiconductor nanostructures that absorb light and transport its energy further than previously observed. (2018-05-24)

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