Solar ♦ news digest
The ASF100 increases yielded output of sapphire material by producing a larger, 100 kilogram sapphire boule in the same chamber as previous versions of the furnace.
“We have received an enthusiastic response from early adopter customers for our ASF sapphire growth systems as they enter the market to provide high quality sapphire material for the fast-growing LED industry,” said Cheryl Diuguid, vice president and general manager of GT Solar’s sapphire equipment and materials group. “Our advanced sapphire crystallisation systems are built on a highly scalable and reliable architecture that lets customers quickly ramp to volume production with a lower capital investment compared with other competing crystallisation technologies.”
With over 40 years of proven sapphire production and crystalline growth process technology, the ASF100 provides a highly automated, low risk operating environment, capable of producing consistently uniform sapphire boules that yield high quality material ideally suited for high brightness (HB) LED applications. “With competing crystallisation technologies customers entering the sapphire crystallisation market are forced to choose between systems that provided quality or systems that offer high throughput,” continued Diuguid. “Our ASF100 offers high quality and high volume so customers get both in one system.”
Since the commercial introduction of the ASF system in the fall of 2010, GT has booked more than $450 million in orders from new entrants and existing sapphire producers. The ASF100 advanced sapphire furnace offers a proven path to producing high-quality, large-area sapphire substrates for markets that demand the highest grade material.
PKU unveils China’s first CIGS solar integrated power circuit
In the 6th Asia Solar Photovoltaic Industry Exhibition, what was claimed by the innovators to be the first Chinese CIGS solar integrated power circuit, was exhibited in Shanghai on May 5.
Technically supported by Peking University (PKU),
Henan Yanyuan Photovoltaic Technology claims to have developed China’s first CIGS solar integrated power circuit.
This new product proves to be a new innovation in the Chinese solar photonics industry. With the booming solar industry nowadays, people are familiar with solar collectors and solar cells. However, what they don’t quite know is the combination of these two elements–the solar integrated power circuit, a new type of CIGS solar cell’s application. It provides a new approach to promote volume production.
Gan Zizhao, professor of the PKU School of Physics and member of the Chinese Academy of Sciences, talked about the invention during an interview. “The application of CIGS solar cell is going to be the development trend in the solar industry. It reduces pollution and costs compared with the old material, which is mainly silicon. Moreover, it’s cheaper and more efficient,” said Gan.
The PKU research team had independent intellectual property of this technology, added Gan. Compared with other few countries like US and Germany, they are still in an intermediate level, having a long way to reduce the gap in craftsmanship. However, there are large potential markets for this innovation in China.
Wolfgang Palz, chairman of the World Council for Renewable Energy, expressed his compliments for China’s remarkable achievements in energy conservation and pollution reduction, especially efforts made in developing new energy.
III-V cells could help plants to provide more efficient solar energy
The multi-junction tandem solar cell initially developed at NREL has proved to be an important strategy to understand how to boost the efficiency of corn, grasses, algae, and other plants that use photosynthesis to produce stored solar energy in plants.
Plants can overcome their evolutionary legacies June 2011
www.compoundsemiconductor.net 167
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