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Materials, Coatings News
$1.2M Grant Advances Metal-Organic Frameworks for Solar Cells
LIVERMORE, Calif., Nov. 5, 2014 — A $1.2 million grant from the U.S. Department of Energy’s SunShot Initiative will help researchers at Sandia National Laboratories develop materials that could make solar power cost-competitive with other sources of energy. The work builds on Sandia’s recent successes with metal-organic framework (MOF) materials by combining them with dye-sensitized solar cells (DSSCs). MOFs will enable precise control of dyes, the researchers said, and could also facilitate electron
Breaking Ground Now: Next-Gen Giant Telescopes
Nov 5, 2014 — The largest telescope on Earth is currently the Gran Telescopio Canarias in the Canary Islands of Spain, which was built in 2009 with an aperture of 10.4 m. This 10-m design will hold the record for another four to eight years, but a new crop of...
MAC Thin Films Open for Business
SANTA ROSA, Calif., Nov. 4, 2014 — JDSU spinoff MAC Thin Films Inc. has begun operations, offering coatings for displays and other applications. Mark Madigan, former marketing and product management executive at JDSU, is the new company's CEO.
MWIR for Remote Sniffing and Locating of Gases
Nov 5, 2014 — A mid-wave infrared camera visualizes methane gas cloud leaking from a drilling platform. Methane is a greenhouse gas that is significantly more damaging than carbon dioxide. When it leaks uncontrolled from industrial plants, it can easily escape...
Understanding Passively Q-Switched Solid-State Lasers
Nov 5, 2014 — The operation of Q-switched lasers can be quantitatively understood – with huge benefits for laser design. In the September issue, we covered the operation and design of actively Q-switched lasers; this second part covers passively Q-switched...
Solar Cell Fabrication Technique Uses Impure Silicon
TRONDHEIM, Norway, Oct. 30, 2014 — Less-expensive raw materials in lower quantities could mean fewer production steps in manufacturing solar panels — and potentially lower energy consumption. A team from the Norwegian University of Science and Technology (NTNU) has developed a...
Light Gets a Year in the, Well, Spotlight
Oct 21, 2014 — In late 2013, the United Nations General Assembly proclaimed 2015 the International Year of Light and Light-based Technologies, and entities around the world are finalizing plans to participate. The goal is to help people understand the importance...
Short-Pulse Lasers Enable Transparent Materials Processing
Oct 21, 2014 — In several industries, an increasing need exists to cut, drill and mark glass, sapphire and diamond – materials that are difficult to machine using traditional mechanical methods due to their brittleness and hardness. Their transparency at...
Shorter Wavelengths, Pulses Power Laser Manufacturing
Oct 21, 2014 — Recent laser advances are bringing benefits to manufacturing applications involving drilling, cutting and welding. More powerful diode lasers could, in the future, do more of these jobs directly, instead of being used to pump another material. The...
Magnetic Mirror Reflects Light in New Ways
ALBUQUERQUE, N.M., Oct. 16, 2014 — A new magnetic mirror uses non-metallic metamaterial properties to reflect IR light.
Plasmon Laser Demonstrates Fastest Switching Speed
LONDON and JENA, Germany, Oct. 9, 2014 — A new plasmon semiconductor laser has demonstrated ultrafast switching speeds and is being touted as the world’s fastest.
Gas Purging Keeps UV Systems Healthy
Oct 6, 2014 — Photochemical deposition of organic films is a significant cause of performance loss in ultraviolet systems; when feasible, it can be reduced or eliminated with inert gas purging. Ultraviolet photons are highly energetic – enough to break...
Micro Thermal Camera Opens Applications to Consumers
Oct 6, 2014 — Personal thermal imaging just got affordable – but the technology can be used in various industries, too. Thermal imaging is hardly new, but most of us don’t carry thermal imagers in our pockets. Not yet. But it could happen soon, thanks...
Smile and Say, ‘Drone!’
Oct 6, 2014 — Any photographer will tell you that if it were possible to grow an extra set of hands, he would. As simultaneous scientists, artists and packhorses, photographers must know their equipment inside and out, but they must also be prepared to change...
Additive Manufacturing: The Laser Source Is Critical
Oct 3, 2014 — Laser beam power, spot size and focal point must be measured and controlled to produce parts to specification through 3-D printing. Laser-based additive manufacturing (AM) involves the deposition of a precise amount of material in a layer- by-layer...
Bandwidth Demands Drive Fiber Optics Advances
Oct 3, 2014 — Data centers and other applications are pushing changes in long-haul and short-haul fibers. Fiber optics connects the world, carrying calls and data. With bandwidth demand growing, manufacturers are working to up transmission rates, cut costs and...
Keeping Optical Tables Steady
Oct 3, 2014 — Experimental results from a scanning laser Doppler vibrometer elucidate the effects of active vibration damping. Vibration presents a major challenge for precision experiments and manufacturing processes in optoelectronics. Optical tables and...
Thermophotovoltaic System Exhibits Better Absorption
CAMBRIDGE, Mass., Oct. 1, 2014 — A 2-D photonic crystal could prove key in advancing the absorption and use of solar energy.
Ultrathin Films Color Rough, Flexible Surfaces
CAMBRIDGE, Mass., Oct. 2, 2014 — Researchers can now “paint” rough, flexible surfaces through the phenomenon of thin-film interference. A team at Harvard University demonstrated that ultrathin optical coatings can display strong optical interference effects on notebook...
Gold Nanoclusters Enhance Solar Power
LONDON, Ontario, Canada, Sept. 30, 2014 — Gold nanoclusters could improve solar cell performance by more than 10 percent.
Deposition Technique Enables Large-Scale MoS2 Fabrication
SOUTHAMPTON, England, Sept. 24, 2014 — A new technique for fabricating larger amounts of molybdenum disulfide than previously possible could lead to an expanded array of optoelectronic devices. The technique involves depositing nanoscale MoS2 thin films on a variety of substrates via...
Inorganic Semiconductors Guide New Optoelectronic Devices
SEOUL, South Korea, Sept. 22, 2014 — Inorganic Semiconductors Guide New Optoelectronic Devices SEOUL, South Korea, Sept. 22, 2014 — Inorganic compound semiconductors could potentially replace those developed with organic materials. A research team from Seoul National University...
‘Electrode Barrier’ Broken for Organic Solar Cells
AMHERST, Mass., Sept. 19, 2014 — A new organic solar cell has broken the “electrode barrier” known to hamper efforts to enhance efficiency. A team from the University of Massachusetts Amherst developed the cell, which can use virtually any metal as the electrode. Many...
Element Six Joins EU Disk-Laser Development Project
SANTA CLARA, Calif., Sept. 17, 2014 — Element Six has been chosen to help develop a new ultrafast-pulse disk laser for the European Commission’s Seventh Framework Program for Research and Technological Development. The supermaterials company will be part of a multinational team...
Color Display Technology Furthers ‘Squid Skin’ Project
HOUSTON, Sept. 16, 2014 — A new color display brings scientists one step closer to metamaterials that mimic the unique optical properties of squid, octopus and cuttlefish skin. Developed at Rice University’s Laboratory for Nanophotonics (LANP), the new full-color...
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July 2024
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