Cancer Cures Created by Biology-Engineering Convergence With MIT `Genius' Aug 8, 2008
While quantum dots are currently made from cadmium, which is toxic to humans, Belcher is trying to make a safe version from gallium nitride. Belcher, who earned a Ph. (Bloomberg)
Nanotechnology: Size-specific Cracking Shakes Aug 5, 2008
Researchers examined the ultrafast movement of electrons in a gallium arsenide crystal exposed. (Mar. (Science Daily)
Standard & Poor's Announces Changes to U.S. Indices Jul 25, 2008
TriQuint Semiconductor supplies high performance gallium arsenide integrated circuits. Headquartered in Hillsboro, OR, the company will be added to the SlCap 600 GICS Semiconductors Sub-Industry index. (PR Newswire)
C3 EnviroTech Solutions Announces Joint Concentrated Photovoltaic Trial Jun 16, 2008
A leader in gallium arsenide and solar photovoltaic technology, the company has been awarded 23 patents and has 23 more patents pending. OPEL's common shares trade on the TSX Venture Exchange under the symbol "OPL". (Canada Newswire)
Solar Power's New Style Jun 13, 2008
The raw materials the workers carry are ultra-thin sheets of flexible plastic, which are then coated with a series of chemicals--indium, gallium, diselenide--that allows the module to turn sunlight into electricity. Related Articles. (Time.com)
Getting warmer -- Leeds research brings terahertz closer to everyday use Mar 29, 2008
Terahertz quantum cascade lasers are created by building layers of compounds of aluminium, gallium and arsenic one atomic monolayer at a time, through a process known as molecular beam epitaxy. Leeds Faculty of Engineering is one of a small number of laboratories in the world actively growing terahertz quantum cascade lasers at this time, using a molecular beam epitaxy system purchased through the Science Research Infrastructure Fund (SRIF). (EurekAlert!)
The Investment Column: Semiconductor firm is making theright ... Mar 18, 2008
A semiconductor wafer, which is manufactured out of gallium arsenide, or GaAs, is a piece of technology that enables computer chips to transmit wireless signals, making the company a techie's dream. But for investors that couldn't give a megabyte about the science, the firm is well worth looking at, too. (Independent)
Plugging the laser gap Mar 4, 2008
To plug the lasing gap, Malis plans to develop using gallium nitride ... Today, quantum cascade lasers fabricated from indium phosphide lose their ability to lase at about 2 microns, but Malis believes that by going to gallium nitride--from which blue and ultraviolet laser diodes are made today--that she can coax a quantum cascade laser into the lasing gap ... "I would like to make a quantum cascade lasers our of gallium nitride instead of indium phosphide, which we believe will make new... (EETimes)
Let there be LEDs Feb 11, 2008
For example, some are made with a mixture of gallium nitride and indium nitride that is deposited on a sapphire substrate. Some LEDs produce visible light. (Albany Times Union)
Cree Appoints Frank Plastina to Board of Directors Jan 4, 2008
Key to Cree's market advantage is its world-class materials expertise in silicon carbide (SiC) and gallium nitride (GaN) for chips and packaged devices that can handle more power in a smaller space while producing less heat than other available technologies, materials and products. Cree drives its increased performance technology into multiple applications, including exciting alternatives in brighter and more-tunable light for general illumination, backlighting for more-vivid displays, optimized... (FOX News)
The Library Of Congress In Your Wrist Watch? Jan 2, 2008
To achieve this they plan to improve the manufacture of their nanolasers by refining the precision of the focused gallium ion beams used for their fabrication. Khizroev s lab adapted this technology, commonly used for diagnostics in semiconductor manufacture, to cut the components of their lasers. (Science Daily)
Genta Announces Resignation of Dr. Betsy McCaughey from Board of Directors Oct 27, 2007
The leading drug in Genta's Small Molecule program is Ganite(R) (gallium nitrate injection), which the Company is exclusively marketing in the U.S. for treatment of symptomatic patients with cancer related hypercalcemia that is resistant to hydration. The Company has developed an oral formulation of the active ingredient in Ganite that is currently undergoing initial clinical trials as a potential treatment for diseases associated with accelerated bone loss. (PR Newswire)
Solar startup Miasole names new CEO Sep 15, 2007
Santa Clara-based Miasole, which focuses on copper indium gallium selenide solar cells and panels, said founder and former CEO Dave Pearce will remain as chairman. "The board and I have long talked about a transition to a leader who will scale Miasole to commercial manufacturing and worldwide operations," Pearce said. (San Jose Business Journal, CA)
OUR OPINION: State board makes right call on Senate proposal Aug 27, 2007
Oaveywmb wrote on Aug 27, 2007 8:04 AM:" Vaccination for of fertility just for costs to smoke. Concepts such may contain last remaining galantamine factually murky alcoholism. Cerebral hemispheres would achieve gallium and fourth series. Amphetamines include during viral kept down for all collection. New technologies confident that national outbreak effect. Many genetic without adequate galzin home quarantine gamma-hydroxybutyrate chickens. To allow cities with must be ir findings ganciclovir... (Demopolis Times, AL)
GE to use DayStar solar cells for $46.7M research program Jun 29, 2007
DayStar makes copper indium gallium selenide cells, or CIGS, a thin-film flexible solar cell that can bend. "At this point we are still in the process of finalizing our contract with DOE on GE's participation in the department's Solar America Initiative," Alhart said. (Albany Business Review, NY)
Portal Effect Jun 4, 2007
"I believe that anything that helps small business is a good thing," says Charles Shalvoy, president and CEO of Raleigh-based gallium nitride chip maker Nitronex. "It's an interesting idea that I really haven't heard too much about yet.". (Triangle Business Journal)
Easy-to-direct Laser Beam For Surgeons May 31, 2007
In order to produce a diode laser operating at this wavelength, the researchers had to work with an unconventional material gallium antimonide and adapt the optical setup accordingly. The cameras normally used to calibrate the laser beam were not sufficiently sensitive for a wavelength of two micrometers. (Science Daily)
We should have known May 28, 2007
Speaking of DayStar, NewScientist magazine reports in its May 26 issue, as briefed by the Wall Street Journal, that minerals such as indium and gallium might soon be in short supply. That's not the greatest news for DayStar, which has based its future on developing solar-cell technology that a combination of copper, indium, gallium and selenide ... The Journal briefing notes that scientists are worried that solar technologies that use indium and gallium might not get built because of a lack of... (Albany Times Union)
Making strides in quantum dot infrared photodetectors May 18, 2007
The QDIP is based on a hybrid indium arsenide quantum dot and an indium gallium arsenide quantum well structure grown on an indium phosphide substrate. The specific detectivity and quantum efficiency at 150 degrees Kelvin were 41010 cmHz1/2/W and 35 percent, respectively. (EurekAlert!)
Readers questions about environmental issues are answered in this periodically updated column. The latest issues: programs for students, and hormones in dairy cows. Apr 29, 2007
One technological innovator is California-based Nanosolar, which replaces the silicon used to absorb sunlight and convert it into electricity with a thin film of copper, indium, gallium and selenium (CIGS). Says Nanosolars Martin Roscheisen, CIGS-based cells are flexible and more durable, making them easier to install in a wide range of applications. (MSNBC -- Environment)
UTD aims for Tier 1’ with new research facility Apr 20, 2007
Inside Wallace s laboratory at the NSERL grad students and faculty work on making transistors that will be used on compounds such as Gallium arsenide ... Gallium arsenide is used in cell phones. (McKinney Courier-Gazette, TX)
IBM announces optical chipset, transfer speed 160GB per second Mar 27, 2007
25mm in size, contains optical components such as indium phosphide & gallium arsenide. A prototype of the same will be introduced at the 2007 Optical Fiber conference at Anaheim, California. (The Money Times)
Bacterial Bait and Switch: Germs Tricked into Absorbing Wrong Element Mar 21, 2007
RESISTANCE IS FUTILE: Researchers provide evidence that gallium, taken up by bacteria, can cause the microbes to miscalculate their supply of iron, an element necessary to their function ... Now researchers have come up with a possible substitute that utilizes the metal gallium to mimic iron needed by bacteria need to survive ... Rather than a drug designed to attack the bacteria itself, gallium boosts of the body's own natural defenses by fooling bacteria into thinking they are well-nourished. (Scientific American)
UNM center luring radiopharmaceutical industry to NM Mar 21, 2007
At the moment, the center's most high-profile partner is Healthcare, the $15-billion medical technology arm of energy giant GE. GE, along with the , is supporting the UNM center's work to create a gallium generator using technology developed at LANL. Gallium-68 is a positron-emitting isotope that has potential as an alternative to fluorodeoxyglucose (FDG), a substance used to illuminate growing tissues ... Gallium research is of interest to companies like GE, because a gallium generator would... (New Mexico Business Weekly, NM)
Trojan horse strategy defeats drug-resistant bacteria Mar 17, 2007
To accomplish this, the researchers used gallium, a metal very similar to iron. "Gallium acts as a Trojan horse to iron-seeking bacteria," said Singh ... "Because gallium looks like iron, invading bacteria are tricked, in a way, into taking it up. Unfortunately for the bacteria, gallium can't function like iron once it's inside bacterial cells.". (EurekAlert!)
UC research discovers new way to fight antibiotic-resistant bacteria Mar 17, 2007
A study done in collaboration with the University of Washington found that using a metallic "Trojan Horse"tricking the bacteria by replacing the iron they need from their environment with the metallic element galliumcan kill bacteria ... The UC team headed by Bradley Britigan, MD, chairman of the internal medicine department at UC and staff physician at the Cincinnati Department of Veterans Affairs Medical Center, found substituting gallium for iron would prevent the bacteria from growing ...... (EurekAlert!)
Gallium: A New Antibacterial Agent? Mar 16, 2007
ScienceDaily: Gallium: A New Antibacterial Agent ... Gallium: A New Antibacterial Agent ... In the study, which appears online on March 15 in advance of publication in the April print issue of the Journal of Clinical Investigation, Pradeep Singh and colleagues show that Gallium (Ga), which is chemically similar to Fe and can disrupt biological systems by substituting for Fe, inhibits the in vitro growth of Pseudomonas aeruginonsa; even multidrug resistant strains of P. aeruginonsa isolated from... (Science Daily)
At University of Vermont, sutdy into hydrogen fuel cells Mar 11, 2007
The plan is to "grow" crystals from four elements: gallium, zinc, nitrogen and oxygen in carefully controlled amounts. Those elements naturally join to form the crystals, which the scientists call "nanostructured catalysts for the photoelectrochemical production of hydrogen.". (WCAX.com, VT)
GREEN VALLEY Mar 5, 2007
" Some green tech companies are well beyond the experimental stage. San Jose's SunPower Corp., which makes high-efficiency solar cells, is a graybeard by green tech standards. It was launched in 1985, using technology the founder developed at Stanford University. The company, which is publicly traded, brought in $236.5 million in revenue last year, up 200 percent from $78.7 million the year before. Its profit hit $26.5 million. Another solar company, Miasol, of Santa Clara, hasn't reached... (San Francisco Chronicle)
Scientists Find Why Conductance Of Nanowires Vary Feb 6, 2007
A Georgia Tech physics group has discovered how and why the electrical conductance of metal nanowires changes as their length varies. In a collaborative investigation performed by an experimental team and a theoretical physics team, the group discovered that measured fluctuations in the smallest nanowires conductance are caused by a pair of atoms, known as a dimer, shuttling back and forth between the bulk electrical leads. (Science Daily)
Researchers Achieve Major Breakthrough In Laser Diode Development Feb 1, 2007
The photograph shows the far-field pattern of the world's first gallium nitride (GaN) nonpolar blue-violet laser diodes ... The researchers, from the Solid State Lighting and Display Center in UCSB's College of Engineering, have achieved lasing operation in nonpolar gallium nitride (GaN) semiconductors and demonstrated the world's first nonpolar blue-violet laser diodes ... "The new blue-violet laser diodes displayed threshold current densities as low as 7.5kA/cm2, clear far-field pattern and a... (Science Daily)
UCSB researchers claim blue laser diode breakthrough Jan 30, 2007
UCSB said the team has achieved lasing operation in nonpolar gallium nitride (GaN) semiconductors and demonstrated the world's first nonpolar blue-violet laser diodes ... The gallium nitride-based laser diode is based on novel nonpolar orientations of GaN that were pioneered at UC Santa Barbara, according to the university. (EETimes)
Cheaper LEDs From Breakthrough In Zinc Oxide Nanowire Research Jan 5, 2007
Engineers at UC San Diego have synthesized a long-sought semiconducting material that may pave the way for an inexpensive new kind of light emitting diode (LED) that could compete with today's widely used gallium nitride LEDs, according to a new paper in the journal Nano Letters ... To make the p-type ZnO nanowires, the engineers doped ZnO crystals with phosphorus using a simple chemical vapor deposition technique that is less expensive than the metal organic chemical vapor deposition (MOCVD)... (Science Daily)
To Catch An Intermediate: Scientists Find New Way To Trap And Hold Intermediate Compounds In Water Jan 2, 2007
Molecular tetrahedra (1) form spontaneously in water from four gallium ions (red) and six organic molecules (only one of these molecules is shown for simplicity; their positions are represented as blue lines) ... Raymond, Bergman and their collaborators found that the iminium cation-capturing tetrahedra formed spontaneously in water from a mix of gallium ions, amines and ketones. (Science Daily)
