Silicon Current Events

Silicon Current Events, Silicon News Articles.
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Tougher Than Silicon
A rugged, powerful new breed of semiconducting devices may be possible with a new alloy of silicon-carbide and germanium developed by scientists at the University of Delaware. (1999-05-10)

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)

Porous Silicon Joining Humans To Machines
A new porous version of silicon could be the key to allowing mechanical devices to interact with human tissue, according to initial research into the biocompatibility of the material at De Montfort University, Leicester, UK. The material could lead to 'bionic' limb replacements and electronic sensing devices for checking body chemistry and potentially viewing images and hearing sounds. (1999-04-01)

Researchers develop new possibilities for solar power
Two Queen's researchers have contributed to a significant breakthrough in solar technology. Their research has led to a new solar photovoltaic thermal system that generates both electricity and heat. (2012-07-10)

TU Delft raises energy yield of 'cheap' solar panels
Researchers from TU Delft in the Netherlands have shown how the energy yield of relatively cheap solar panels, made of amorphous silicon, can be considerably raised: from around 7-9 percent. Gijs van Elzakker will obtain his Ph.D. on this subject from TU Delft on Tuesday, July 6. (2010-07-06)

Molecular 'pulleys' help boost battery performance
In lithium batteries with a silicon anode, researchers have applied a sophisticated method using molecular 'pulleys' that aid in the expansion and contraction of the anode during cycling. (2017-07-20)

Sunlight generates hydrogen in new porous silicon
Porous silicon manufactured in a bottom up procedure using solar energy can be used to generate hydrogen from water, according to a team of Penn State mechanical engineers, who also see applications for batteries, biosensors and optical electronics as outlets for this new material. (2014-04-10)

Grant to help commercialize silicon surgical blades
A UC Davis engineering professor has received a grant of $200,000 from the National Science Foundation 'Partnerships for Innovation: Accelerating Innovation Research-Technology Translation' program to move his silicon-based blades towards commercial development as surgical and shaving tools. (2014-09-15)

Stable silicon layer makes flat-panel display cheaper
In a joint project between the Technology Foundation STW and the energy agency Novem at Utrecht University, researchers have developed new silicon layers which are more stable and cheaper than the present amorphous silicon layers. The electronic properties of the present layers in laptop screens and solar cells deteriorate if the material is under 'stress', for example due to sunshine or a voltage. (2002-03-18)

'Oscar Madison' approach to solar cells may outshine 'Felix Unger' design
Sometimes neatness may not be necessary. Researchers have demonstrated that a tangled coating of randomly positioned nanowires can increase solar cell efficiency by absorbing more light. (2011-09-12)

Scientists propose a flexible interface design for silicon-graphite dual-ion battery
A research group led by Prof. TANG Yongbing and his team members (Dr. JIANG Chunlei, XIANG Lei, MIAO Shijie etc.) from the Shenzhen Institutes of Advanced Technology (SIAT) of the Chinese Academy of Sciences, along with Prof. ZHENG Zijian from the Hong Kong Polytechnic University, have proposed a flexible interface design to reduce alloying stress on silicon anodes in silicon-graphite DIBs. (2020-03-09)

Flexible thinking on silicon solar cells
Combining silicon with a highly elastic polymer backing produces solar cells that have record-breaking stretchability and high efficiency. (2019-12-22)

Silicon-based photodetector is sensitive to ultraviolet light
By depositing thin films of silicon nanoparticles on silicon substrates, researchers at the University of Illinois at Urbana-Champaign have fabricated a photodetector sensitive to ultraviolet light. Silicon-based ultraviolet sensors could prove very handy in military, security and commercial applications. (2004-07-19)

A blast of gas for better solar cells
Treating silicon with carbon dioxide gas in plasma processing brings simplicity and control to a key step for making solar cells. (2020-10-26)

Curtin find could slash energy use and cost in making silicon
Curtin University researchers have uncovered a method of making silicon, found commonly in electronics such as phones, cameras and computers, at room temperature. (2021-01-20)

Stress management: X-rays reveal Si thin-film defects
NIST researchers have demonstrated a sensitive X-ray imaging technique to track crystal-structure flaws from one layer to the next in the complex multi-layer wafers used to make high-performance strained-silicon semiconductor devices. (2006-07-06)

Recharging on stable, amorphous silicon
Next-generation anodes for lithium ion batteries will probably no longer be made of graphite. Silicon, which is a related material, can provide a much higher capacity than graphite, but its crystallinity poses problems. In the journal Angewandte Chemie, Chinese scientists have introduced a porous silicon form that is amorphous, not crystalline, and has the potential to outstrip the other materials in rechargeable battery applications. (2016-10-11)

The Future Of Computer Processors Could Be Spherical
The silicon chip may be no more if one American company has its way. Ball Semiconductor Inc, near Dallas, Texas, claims it is close to making computer processors in the form of silicon spheres. (1998-07-22)

Breakthrough technique offers prospect of silicon detectors for telecommunications
A team of researchers, led by the Optoelectronics Research Centre at the University of Southampton, has demonstrated a breakthrough technique that offers the first possibility of silicon detectors for telecommunications. (2014-10-03)

UCSB researchers develop hybrid silicon evanescent laser
In what promises to be an important advance, researchers at the University of California, Santa Barbara have developed a novel laser by bonding optical gain layers directly to a silicon laser cavity. This hybrid laser offers an alternative to silicon Raman lasers and is an order of magnitude shorter. The laser is optically pumped, operates in continuous wave mode, and only needs 30 mW of input pump power. (2005-11-15)

Understanding the (ultra-small) structure of silicon nanocrystals
New research provides insight into the structure of silicon nanocrystals, a substance that promises to provide efficient lithium ion batteries that power your phone to medical imaging on the nanoscale. (2019-06-06)

Lithium-ion batteries: Capacity might be increased by 6 times
The capacity of lithium-ion batteries might be increased by six times by using anodes made of silicon instead of graphite. A team from the Helmholtz-Zentrum Berlin Institute of Soft Matter and Functional Materials has observed for the first time in detail how lithium ions migrate into thin films of silicon. It was shown that extremely thin layers of silicon would be sufficient to achieve the maximal load of lithium. The results are published in the journal ACS Nano. (2016-08-08)

Creating smaller, and more powerful, integrated circuits
Researchers with the University of Houston Cullen College of Engineering are developing technology to knock single atoms off a silicon wafer without disturbing atoms of other materials nearby. (2013-10-30)

For solar boom, scrap silicon for this promising mineral
Cornell University engineers have found that photovoltaic wafers in solar panels with all-perovskite structures outperform photovoltaic cells made from state-of-the-art crystalline silicon, as well as perovskite-silicon tandem cells, which are stacked pancake-style cells that absorb light better. (2020-08-03)

Nanobridges show way to nano mass production
They look like an elegant row of columns, tiny enough for atomic-scale hide-and-seek, but these colonnades represent a new way to bring nanotechnology into mass production. (2005-04-08)

Liquid metal makes silicon crystals at record low temperatures
A new way of making crystalline silicon, developed by U-M researchers, could make this crucial ingredient of computers and solar cells much cheaper and greener. (2013-01-24)

Lobachevsky University scientists obtain a hexagonal modification of silicon
A team of scientists from Lobachevsky University (Nizhny Novgorod, Russia) has obtained a material with a new structure for applications in the new-generation optoelectronics and photonics. This material is one of the hexagonal modifications of silicon, which have been attracting researchers' attention of all over the world due to their better radiative properties compared to conventional cubic silicon, which is traditionally used in microelectronics. (2018-11-27)

New ultrathin semiconductor materials exceed some of silicon's 'secret' powers
Chip makers appreciate what most consumers never knew: silicon's virtues include the fact that it 'rusts' in a way that insulates its tiny circuitry. Two new ultrathin materials share that trait and outdo silicon in other ways that make them promising materials for electronics of the future. (2017-08-11)

More stable qubits in perfectly normal silicon
The power of future quantum computers stems from the use of qubits, or quantum bits. It is not yet clear on which technology these qubits in quantum computers will be based, but qubits based on electron spins are looking more and more promising. It was thought that these could only be produced in the expensive semiconductor material gallium arsenide, but researchers have now discovered that the more common material silicon is even better (2016-10-04)

KIST researchers develop high-capacity EV battery materials that double driving range
Dr. Hun-Gi Jung and his research team at the Center for Energy Storage Research of the Korea Institute of Science and Technology have announced the development of silicon anode materials that can increase battery capacity four-fold in comparison to graphite anode materials and enable rapid charging to more than 80% capacity in only five minutes. When applied to batteries for electric vehicles, the new materials are expected to more than double their driving range. (2020-02-21)

Obtaining of silicon nanowires becomes eco-friendly
Scientists from the Faculty of Physics, the Lomonosov Moscow State University have devised a technique of silicon nanowires synthesis. They have managed to do this with the help of metal-assisted etching, where safer and more eco-friendly ammonium fluoride is used instead of hydrofluoric acid. The research results have been published in Nanoscale Research Letters journal. (2016-10-18)

Brilliant growth without gold
Max Planck researchers in Halle present new methods for manufacturing nanowires from silicon. (2006-11-28)

New world record efficiency for thin film silicon solar cells
EPFL's Institute of Microengineering has reached a remarkable 10.7 percent efficiency single-junction microcrystalline silicon solar cell, clearly surpassing the previous world record of 10.1 percent held by the Japanese company Kaneka Corporation since 1998. Such significant efficiency, independently certified by the Fraunhofer Institute for Solar Energy Systems, was achieved with less than two micrometers of photovoltaic active material - 100 times less than with standard techniques. (2013-02-12)

Molecular electronic device shows promise
Thanks to a team of materials scientists at Northwestern University, molecular electronics may be one step closer to reality. The researchers, led by Mark Hersam, assistant professor of materials science and engineering, have become the first to measure a unique and versatile nanoelectronic effect -- called resonant tunneling -- through individual molecules mounted directly on silicon. The findings were published online Nov. 1 by Nano Letters, a publication of the American Chemical Society. (2003-11-03)

The perfect cut
You need the right tool to slice silicon blocks into paper-thin wafers: a several-kilometer-long wire wetted with a type of grinding paste. And all the parameters must be optimally adjusted -- only then can significant material losses be avoided during the cutting process. (2009-08-07)

Researchers at UC-Santa Barbara have built the world's first mode-locked silicon evanescent laser
Researchers at UC-Santa Barbara have announced they have built the world's first mode-locked silicon evanescent laser, a significant step toward combining lasers and other key optical components with the existing electronic capabilities in silicon. The research will be reported in the Sept. 3 issue of Optics Express, and is published online today. (2007-08-21)

Understanding mechanical properties of silicon nanowires paves way for nanodevices
Silicon nanowires are attracting attention from the electronics industry due to the drive for smaller devices, from cell phones to computers. The operation of these devices, and an array of additional applications, will depend on the mechanical properties of these nanowires. Research from North Carolina State University shows that silicon nanowires are far more resilient than their larger counterparts, a finding that paves the way for smaller, sturdier nanoelectronics, nanosensors, light-emitting diodes and other applications. (2009-11-11)

UT Arlington professor to increase speed, capacity on silicon chips with novel lasers
A UT Arlington electrical engineering professor, funded by a new National Science Foundation grant, is working to harness the power of lasers on silicon chips to increase capacity and speed in computing and communications systems. (2013-10-09)

Osaka solar scientists rough up silicon panels to boost light capture
Osaka University scientists enhance conversion efficiency of crystalline Si solar cells by effectively preventing reflection loss, passivating a submicron silicon structure, and adding a rough nanoscale surface texture using simple and inexpensive processes. (2017-07-26)

Chemical bonding states at silicon / silicon dioxide interfaces characterisable with light
Physicists at the Technical University of Clausthal, have succeeded in characterising the change in bond structure of interfacial atoms during the oxidation of a silicon surface by a purely optical method. The results of the research have been published in the scientific journal, Physical Review Letters, Volume 93, No. 9 (online on 27th August 2004). (2004-08-26)

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