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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 to become much better at using biological photosynthesis to produce energy, the kind of energy that can power vehicles in the near future, an all-star collection of biologists, physicists, photochemists, and solar scientists have found.


A U.S. Department of Energy (DOE) workshop that drew a prestigious collection of 18 scientists to compare the efficiency of plants and photovoltaic solar cells led to an important and provocative scholarly article in the journal Science. Two of the scientists are from DOE’s National Renewable Energy Laboratory (NREL), Arthur J. Nozik and Maria Ghirardi.


Titled “Comparing Photosynthetic and Photovoltaic Efficiencies and Recognizing the Potential for Improvement,” the article combines lessons learned from evolutionary photobiology and modern solar cells to make the case for a potentially huge boost in the efficiency of the solar production of biofuels.


The multi-junction tandem solar cell initially developed at NREL 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.


October 2011 www.compoundsemiconductor.net 163


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