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to achieve the kind of hybrid core-shell nanostructures they demonstrate in their article have been unsuccessful.
“Our process should allow creation of materials that yield highly integrated multi-functional microelectronic components; better, more efficient materials for photovoltaic cells; and new biomarkers,” said Ouyang, who noted his team is in the process of applying for a patent. “We envision for example that we can use this method to create new types of photovoltaic cells that are ten times more efficient in converting sunlight to electricity than current cells.”
“Our method doesn’t require a clean room facility and the materials don’t have to be formed in a vacuum the ways those made by conventional epitaxy do,” Ouyang said. “Thus it also would be much simpler and cheaper for companies to mass produce materials with our process.”
Epitaxy is one of the cornerstones of contemporary semiconductor industry and nanotechnology, and has been considered the most affordable method of high quality crystal growth for many semiconductor materials including silicon-germanium, gallium nitride, gallium arsenide, indium phosphide and graphene.
The new method also can be used to design and fabricate artificial quantum structures that help scientists understand and manipulate the basic physics of quantum information processing at the nanoscale, said Ouyang, noting that he and his team have a separate paper on the quantum science applications of this method that they expect to be published in the near future.
This work was supported by the Office of Naval Research, the National Science Foundation (NSF), and Beckman Foundation. Facility support was from Maryland Nanocentre and its Nanoscale Imaging, Spectroscopy, and Properties Laboratory, which is supported
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www.compoundsemiconductor.net April/May 2010
in part by the NSF as a Materials Research Science and Engineering Centres shared experiment facility.
“Nonepitaxial Growth of Hybrid Core-Shell Nanostructures with Large Lattice Mismatches,” Jiatao Zhang, Yun Tang, Kwan Lee, Min Ouyang, Science, March 26, 2010.
LCD TVs to Exceed 180 Million Units in 2010
2010-03-26
LED-Backlit Models to See Major Growth, Reaching 20% of LCD TVs This Year
2009 was a robust year for the overall flat panel TV market, with total units rising worldwide by more than 32%, very similar to 2008 growth rates. In markets such as Japan and China, growth in 2009 was better than in 2008, despite the recession. Given the strong result in 2009 and the positive influence of new technology introductions such as 3D and LED, DisplaySearch has increased its worldwide TV market forecast for 2010 by more than 10 million units to 228 million units.
“The rapid transition to flat panel technologies in emerging markets and the robust level of growth even in mature markets has led us to improve our outlook for 2010,” observed Hisakazu Torii, Vice President of TV Market Research for DisplaySearch. “This is especially true for LCD TVs, which are now projected to exceed 180 million units in 2010, a 24% increase over 2009. This is helped by the introduction of new technologies like 3D, as well as the expansion of newer features like LED backlights and internet connectivity.”
Price erosion was the major factor contributing to the excellent growth in 2009, with LCD TV average prices falling 24% from 2008, much more than any preceding year. In 2010, volume-weighted average prices are only projected to fall by 5% for LCD TVs and 10% for plasma TVs. The reasons for the more modest decline are renewed growth in larger
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