Solar News
New Technology could mean more Energy for Solar Power
May 9th, 2011

There may now be a way to collect energy from infrared light that may make a huge difference in the solar power industry. Previously, silicon could only be used to convert sunlight into electricity, but now a research team has found a way to harness the energy from infrared light using nanoantennas. More than a third of the solar energy on Earth arrives in the form of infrared light but every semiconductor, including silicon, has a “bandgap” where light below a certain frequency passes directly through and is unable to generate an electrical current.

Lead researcher Naomi Halas and his team showed that they could extend the frequency range for electricity generation into the infrared by attaching a metal nanoantenna to the silicon. This tiny antenna is specially tuned to interact with infrared light. When infrared light hits the antenna, it creates a “Plasmon”, which is a wave of energy that sloshes through the antenna’s ocean of free electrons essentially creating a hot electron that creates an electrical current. The new technology has not been tested on solar panels yet but the team is eager to see if the new technology will result in higher-efficiency.

ASTALDI Construction Corp. Goes Solar
ASTALDI Construction Goes Solar ASTALDI Construction Corporation recently added
a building-integrated, rooftop solar energy system to its corporate office building in Davie, Florida...
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PROINSO becomes PV CYCLE point for the collection and
recycling of modules in Europe. The 965 companies in its network of qualified installers and other companies working with the Spanish multinational, can send all types of photovoltaic modules...
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