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Inkjet Printing Could Go Solar
CORVALLIS, Ore., July 1, 2011 — The next generation of high-performing, rapidly produced and cheaper thin-film solar devices could come courtesy of the common inkjet printer. "This is very promising and could be an important new technology to add to the solar energy field," said Chih-hung Chang, a professor in the School of Chemical, Biological and Environmental Engineering at Oregon State University. "Until now no one had been able to create working CIGS (copper indium gallium selenide) solar devices with inkjet...
Laser sparks hope of reduced auto emissions
OKAZAKI, Japan – Automakers are now one step closer to replacing spark plugs for internal combustion engines with laser igniters for cleaner, more efficient and more economical vehicles. Lasers have been discussed as a promising alternative ignition source for...
Lens-free chip enables microfluidic integration
LOS ANGELES – A new lens-free chip and image processing algorithm combines optical sensors, holography and digital tomography to render high-resolution, high-contrast images while avoiding the limitations of lens-based optical microscopy. Developed by scientists...
Light triggers self-healing in polymer material
CLEVELAND – A polymer-based material that can heal itself when exposed to ultraviolet light for less than a minute has been developed for use in automotive paints, floor and furniture varnish, and more. The team involves researchers from Case Western Reserve...
Method increases green LED light output
TROY, N.Y. – In a step toward the development of LED televisions and displays, researchers have devised a method for manufacturing green-colored LEDs with greatly enhanced light extraction, internal efficiency and light output. Scientists at Rensselaer...
Model IDs Optimal Paths in Fiber Optic Networks
RALEIGH, N.C., July 1, 2011 — Fiber optic network designers need to find the most efficient way to connect distant phones and computers — a costly and time-consuming process. Now researchers have a model that they say finds optimal connections 10,000 times more quickly,...
New Facility Enables Microsystem Technology
DUISBURG, Germany, July 1, 2011 — A new method of producing miniaturized thermal imaging sensors promises to permit large-scale manufacturing of automotive safety devices. The technique, developed at the Fraunhofer Institute for Microelectronic Circuits and Systems (Fraunhofer IMS),...
Organic LEDs get chlorine boost
TORONTO – A simple chlorine treatment could improve organic LEDs (OLEDs), speeding up light display technology manufacturing. The new method also is easier and cheaper than current techniques. Prototype of large-area OLEDs fabricated using chlorinated indium...
Plasmonic resonances found in quantum dots
BERKELEY, Calif. – Until recently, plasmonic properties have been limited to nanostructures with interfaces between noble metals and dielectrics. But now researchers have discovered that plasmonic properties also can be achieved in quantum dots. Scientists at the...
Shedding Light on the Private Lives of Electrons
PRINCETON, N.J, July 1, 2011 — Using laser light, scientists have peered into the complex relationship between a single electron and its environment known as a Kondo state. The results not only yield insights into a long-standing quandary in theoretical physics but may also...
Terahertz invisibility cloak created
EVANSTON, Ill. – A new cloaking material can render objects invisible in the terahertz range. While the design does not create an invisibility cloak for the visible spectrum, it could have applications in diagnostics, security and communications. The cloak,...
‘Campfire Effect’ Observed in Blinking Nanorod Clusters
PHILADELPHIA, June 30, 2011 — When semiconductor nanorods are exposed to light, they blink in a seemingly random pattern, but when clustered together, the combined “on” time is increased dramatically, providing new insight into the mysterious blinking behavior. Many...
Pen ‘Writes’ Circuits for Flexible Electronics
CHAMPAIGN, Ill., June 30, 2011 — A pen with conductive silver ink that can write electrical circuits and interconnects on paper, wood and other surfaces is composing a whole new chapter in low-cost, flexible and disposable electronics. “Pen-based printing allows one to...
Synchrotron Imaging Shows How Folds Affect Graphene
BUFFALO, N.Y., June 30, 2011 — Synchrotron light sources have revealed electron clouds on the surface of graphene, showing how folds and ripples in the material can harm its conductivity. The research, scheduled to appear June 28 in Nature Communications, was conducted by...
AFM Forum to Focus on Materials, Life Sciences
ZURICH, Switzerland, June 29, 2011 — Swiss Federal Institute of Technology (ETH Zürich), Atomic Force F&E GmbH and Asylum Research have announced the third Euro AFM Forum. The atomic force microscopy event will be held in Zurich from Sept. 7 to 9 at Science City on ETH...
ALICE to Accelerate Bioresearch
CHESHIRE, England, June 29, 2011 — Low-power terahertz rays have proven applications in both security devices and medical imaging, but now the effects of Europe’s most intense terahertz light source on human cells is being researched with the hope of triggering advances in...
ISSAC Captures First Images
ROCHESTER, N.Y., June 29, 2011 — The multispectral imager ISSAC (International Space Station Agricultural Camera) successfully captured its first high-resolution image from space, imaging the western coast of Florida on June 10 from 250 miles above the Earth.
Optical Circuit Enables New Quantum Tech Approach
BRISTOL, England, June 29, 2011 — A fundamental building block for quantum computing that could soon be employed in a range of quantum technologies has been demonstrated. This quantum logic gate, acting on four photons, could lead to secure communications, precision measurement and...
Tiny Ring Laser Detects, Counts Nanoparticles
ST. LOUIS, June 29, 2011 — A tiny doughnut-shaped laser is the latest marvel of silicon microminiaturization, but instead of manipulating bits, it detects very small particles. Small particles play a big — and largely unnoticed — role in our everyday lives. Virus...
Full-Spectrum Solar Cell Created
TORONTO, June 28, 2011 — The first efficient tandem solar cell based on colloidal quantum dots (CQD) was reported at the University of Toronto, which said it may pave the way to inexpensive coatings that convert the sun's rays to electricity.
HD Tech Could Get Big Boost from Little Shrimp
PHILADELPHIA, June 28, 2011 — A two-part man-made waveplate inspired by the eye of the peacock mantis shrimp could improve CD, DVD, Blu-ray and holographic technology, creating even higher definition and larger storage density.
Lasers Generate Pure Microwave Signals
GAITHERSBURG, Md., June 28, 2011 — A new low-noise oscillator is generating microwave signals more pure and stable than those from conventional electronic sources. The apparatus could improve signal stability and resolution in radar, communications and navigation systems, and in...
New Method Images Molecules Inside Cells
GOTHENBURG, Sweden, June 28, 2011 — Using a novel sample holder, researchers at the University of Gothenburg have further developed a new method for imaging individual cells. This makes it possible to produce snapshots that show not only the outline of a cell but also the various...
Birds See More Colors Than They Wear
NEW HAVEN, Conn., June 27, 2011 — The brilliant colors of birds have inspired poets and nature lovers, but researchers at Yale University and the University of Cambridge in the UK say that these existing hues represent only a fraction of what birds can actually see. Findings...
Graphene Photodetectors Boost Data Speed
VIENNA, Austria, June 27, 2011 — Scientists at Vienna University of Technology (TU Vienna) have developed light detectors composed of graphene, demonstrating how remarkably fast the material converts light pulses into electrical signals, a capability that could considerably improve...

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