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green photonics News
Photonics West Is the ‘Place to Meet’
SAN FRANCISCO, Feb. 19, 2013 — A record number of international participants at SPIE Photonics West 2013, held Feb. 2-7 at the Moscone Center, made the event “the place to meet” for researchers, developers and suppliers of optics and photonics technology.
OSA Recognizes Chu as Advocate of Optics
WASHINGTON, Feb. 11, 2013 — US Secretary of Energy Steven Chu is The Optical Society’s 2013 Advocate of Optics. He was recognized at a reception as part of OSA’s annual two-day Leadership Conference in Washington.
Solar Cells Made Cheap with ‘Spray Paint’
SHEFFIELD, England, Feb. 11, 2013 — Solar cells fabricated using a “spray painting” process could provide a cost-effective alternative to conventional silicon-based cells and make photovoltaic technology available to people in developing countries.
Black Silicon Boosts Solar Cell Efficiency
HELSINKI, Feb. 7, 2013 — Black silicon surfaces on solar cells can elevate their efficiency to new levels, research out of Finland reports.
Prism Awards Honor Innovations in Photonics
SAN FRANCISCO, Feb. 7, 2013 — An early-stage diagnostic tool for skin cancers, a portable device to test for toxins in water and food, and a versatile laser capable of meeting multiple industrial needs were among 10 winners of the 2013 Prism Awards for Photonics Innovation...
Laser Plasma Process Could Advance Optoelectronic Materials
MONTREAL, Feb. 5, 2013 — A novel nanohybrid structure synthesized using a pulsed laser ablation technique could yield a new generation of optoelectronic switches, fast photodetectors and third-generation solar devices.
Next-Gen Solar Cells Trap Sunlight with Microbeads
OSLO, Norway, Jan. 31, 2013 — Silicon solar cells 20 times thinner than commercial ones were produced using 95 percent less silicon, reducing production costs considerably. The trick: Using a back sheet peppered with microbeads that trick light into staying longer within the...
Exotic Form of Silicon Improves Solar Cells
DAVIS, Calif., Jan. 30, 2013 — An exotic form of silicon may improve solar cell efficiency by as much as 70 percent, according to computer simulations conducted by an international team of scientists.
Thin-Film Solar Cell Efficiency Exceeds 20 Percent
DÜBENDORF, Switzerland, Jan. 24, 2013 — Thin-film solar cells on flexible polymer foils, based on copper indium gallium (di)selenide (CIGS), have set an efficiency record of 20.4 percent for converting sunlight into electricity.
Laser Coaxes Silica Microwires to Self Assemble
SYDNEY and PARIS, Jan. 23, 2013 — Water droplets in which silica nanoparticles are suspended can be carefully controlled with an ultraviolet laser technique that coaxes them to self-assemble into highly uniform nanowires, heralding a new generation of integrated optical devices.
Nanowire Solar Cells Soak Up Sunlight
LUND, Sweden, Jan. 22, 2013 — Nanowires created from indium phosphide have shown potential for drastically improving solar cell efficiency and costs.
Device Tosses Out Unusable PV Wafers
GOLDEN, Colo., Jan. 16, 2013 — Manufacturers need better, less expensive ways to make photovoltaics, and now a solar furnace that kicks out unusable silicon wafers before they become solar cells could potentially save the industry billions of dollars annually.
Multijunction Solar Cell Design Could Exceed 50% Efficiency
WASHINGTON, Jan. 15, 2013 — A lattice-matched, triple-junction solar cell proposed by an international team of scientists has the potential to break the 50 percent conversion efficiency mark, a goal in multijunction photovoltaic development.
For Highly Efficient Organic PV Cells, Size Matters
RALEIGH, N.C., and BERKELEY, Calif., Jan. 8, 2013 — For highly efficient polymer-based organic photovoltaic cells — which are far less expensive to manufacture than silicon-based solar cells — size matters.
Ultratech Acquires Cambridge Nanotech
SAN JOSE, Calif., Jan. 1, 2013 — Ultratech Inc. has acquired the assets of Cambridge Nanotech Inc. of Cambridge, Mass., a developer and supplier of atomic-layer deposition (ALD) technology. Financial terms were not disclosed.
Peel-and-Stick Solar Cells Add More than Flexibility
STANFORD, Calif., Dec. 27, 2012 — Unlike their stiff, inflexible cousins, new peel-and-stick thin-film solar cells can be peeled off like Band-Aids and stuck to virtually any surface, from paper to windowpanes. Unlike standard thin-film photovoltaic (PV) cells, the peel-and-stick...
Invest in Photonics Shows VCs the Money
BORDEAUX, France, Dec. 26 — With a global market that experts predict could grow 8 to 10 percent annually to reach €480 billion by 2015, photonics is on the rise — and the recent Invest in Photonics convention revealed just where venture capitalists and industry...
Photonic Innovations Among Lockheed Contest Winners
BETHESDA, Md., Dec. 21, 2012 — Among the five winners of Lockheed Martin’s Innovate the Future challenge are two photonic innovations: an idea for enhancing solar cell efficiency, and a photonic sensor that detect tumors in the body.
Electrically Conductive Nanoparticles Generate Heat to Kill Cancer Cells
WINSTON-SALEM, N.C., Dec. 14, 2012 — Electrically conductive polymers, commonly used in solar energy applications, have been modified to kill colorectal cancer cells when exposed to infrared light.
Lumenpulse LED Dimming Protocol Receives Patent
MONTREAL and BOSTON, Dec. 13, 2012 — Lumenpulse Inc. has received a patent for its Lumenstart, a dimming protocol technology developed to accelerate the adoption of controllable LED lighting systems and enable smart energy savings.
Photonics West Boasts Largest Program Yet
SAN FRANCISCO, Dec. 13, 2012 — SPIE Photonics West will set records again this year, thanks to its largest-ever biomedical technical program and BiOS Expo, which are driving growth for the 2013 event, SPIE said.
Newport PV Lab Offers Wafer Testing
IRVINE, Calif., Dec. 12, 2012 — Newport Corp.’s Technology & Applications Center’s photovoltaic lab now offers solar wafer testing and calibration on cells up to 156 x 156 mm.
A Black Hole for Light
PRINCETON, N.J., Dec. 10, 2012 — A nanostructured “sandwich” of semiconductor material that collects and traps light has nearly tripled the efficiency of organic solar cells.
Microscopy Tool Adds ‘Color’ with Nanoscale Resolution
BERKELEY, Calif., Dec. 7, 2012 — Nanoscale objects can now be examined in full color, thanks to a new microscopy tip that delivers chemical details with a resolution once thought impossible. The nanotool could help scientists probe solar-to-electric energy conversion at its most...
Sprinkled Silver Nanocubes Make Super Light Absorbers
DURHAM, N.C., Dec. 7, 2012 — Microscopic silver cubes, when sprinkled at random on a polymer-coated gold surface, can provide a simple and tunable way to create large-area absorbers that “perfectly” absorb light of a given wavelength.
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