Scientists have long known that the human body runs like clockwork, guided by a circadian system that responds to daily patterns of light and darkness. Now a team of researchers is developing a personal device to measure daily light intake and activity, which could allow them to predict optimal timing for light therapy to synchronize the circadian clock to the 24-hour solar day and relieve psychosocial stress.
Without silicon there would be no computer industry since most computer chips consist of this semiconductor material. The same is true for solar cells: They too are predominantly silicon-based. The monocrystals are cut in round slices approximately one millimeter thick, which experts call wafers. Their surfaces must be as smooth as glass; irregularities may only be a few nanometers wide, i.e. less than one ten thousandth of a hair. Therefore, after they have been cut out of a large silicon monocrystal, the wafers must be ground and polished.
EMCORE Corporation, a leading provider of compound semiconductor-based components and subsystems for the broadband, fiber optic, satellite and terrestrial solar power markets, today announced the consolidation of its North American fiber optics engineering and design centers into its three main operating sites.
As communities with a commitment to environmental protection, Diex and Hörbranz (Austria) place great value on solar energy and low power consumption for their street lighting. This does not mean that brightness has to be compromised, however, as brilliant street lights equipped with Golden Dragon Oval LEDs amply demonstrate. OSRAM Opto Semiconductors has developed special oval lenses for this application that direct the light accurately onto the street.
NASA, in coordination with the National Oceanic and Atmospheric Administration's Geostationary Operational Environmental Satellites (GOES-R) Program, has awarded a contract to the Laboratory for Atmospheric and Space Physics at the University of Colorado, Boulder.
Europe's flagship ground-based astronomical facility, the ESO VLT, has been equipped with a new 'eye' to study the Universe. Working in the near-infrared, the new instrument - dubbed HAWK-I - covers about 1/10th the area of the Full Moon in a single exposure. It is uniquely suited to the discovery and study of faint objects, such as distant galaxies or small stars and planets.
Scientists are researching new ways of harnessing the sun’s rays which could eventually make it cheaper for people to use solar energy to power their homes.
Applied Materials, Inc. today announced that it has completed the acquisition of HCT Shaping Systems SA (HCT), the world’s leading supplier of precision wafering systems for manufacturing crystalline silicon (c-Si) substrates for the solar industry. The acquisition expands Applied’s portfolio of solutions for helping solar customers reduce the costs of manufacturing photovoltaic (PV) cells to make solar energy more competitive with grid electricity.
Veeco Instruments Inc. has introduced a line of new production-scale PV-Series(TM) Thermal Deposition Sources, enabling copper indium gallium selenide (CIGS) thin film solar manufacturers to more quickly transition from pilot to full scale solar cell production. Veeco's new line of thermal deposition sources for CIGS includes PV-Series SUMO(R) (for copper, indium and gallium) and PV-Series Valved (for selenium and sulfur) for R & D and production environments.
With its Extreme Ultraviolet Imaging Spectrometer (EIS), effectively a solar speed camera, it is now possible to pinpoint the source of eruptions during solar flares and to find new clues about the heating processes of the corona.
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