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The researchers anticipate that the plastics also could replace expensive metals used in other electronic devices, such as flexible displays. In addition, the scientists are beginning to explore the use of the plastics in biomedical sensors that would display a certain color if a person had an infection. For instance, the plastics turn from yellow to green when exposed to nitric oxide, a chemical compound produced during ear infections in children.
If the devices could be produced at a low cost, they might be useful in developing countries that lack advanced medical facilities. “You wouldn’t need any fancy machines or lab equipment to diagnose an infection,” Loo said, “all you would need is your eyes to see the color change in the plastics.”
The co-authors of the paper were Joung Eun Yoo, who received her doctorate in chemical engineering from the University of Texas-Austin in 2009 with Loo as her adviser; Kimberly Baldwin, a high school student who spent a summer in Loo’s lab; Jacob Tarver, a Princeton chemical engineering graduate student; Enrique Gomez of Pennsylvania State University; Kwang Seok Lee and Yangming Sun of the University of Texas-Austin; Andres Garcia and Thuc-Quyen Nguyen of the University of California-Santa Barbara; and Hong Meng of DuPont Central Research and Development. The research was supported by the National Science Foundation, the W.M. Keck Foundation and the Arnold and Mabel Beckman Foundation.
Source Chris Emery , Princeton University
Anwell begins mass production of solar panels
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Anwell Technologies Limited announces its official entry into the solar industry Anwell Technologies Limited has announced its official entry into the solar industry as it begins mass production of amorphous silicon (“a-Si”) thin film solar panels using its in-house developed Sunlite turnkey production line. A unique aspect of Anwell’s equipment is that it allows for the upgrading of its existing capabilities without purchasing a separate new line, representing substantial cost savings as it plans to increase its capacity to 120MW by the end of 2010. The added flexibility will also prove invaluable as the Group markets its turnkey solar equipment, offering companies that are keen to enter the solar industry the added benefit of tailoring their investment according to their available funds and customer demand.
Positioned for growth
The global photovoltaic industry remains robust with solar installation increasing another 6% to reach a record high of 6.43GW in 2009, according to figures released by Solarbuzz, an international solar energy market research company. Demand for new installations was led by European countries, which accounted for 74% or 4.75GW of world demand.
“Given the strong governmental push for solar installations and heavy reliance on imports of European countries, we believe it is an ideal market for us to sell our solar panels. The German distribution centre we set up in late 2009, has already paved the way for this growth. The marketing contacts and channels established over the last few months will allow us to immediately partake in this huge demand for solar panels in Europe market.”
According to Displaybank, a global market research and consulting company, thin film solar panels are also gaining in popularity against the more established crystalline silicon panels. Thin film solar panels made up 19.8% of globally produced solar panels in 2009, up from a 12.8% market share in 2008. This growth trend is expected to continue into 2010, where thin film solar panels are forecast to make up to 23.4% of the 12.1GW worth of total production.
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