Russia will build nano solar cell company
MOSCOW, July 29 Xinhua Russia will set up the ground and efficient nano solar photovoltaic cell business, related technology has been about flying by the St. Petersburg Institute of Physics and Technology successfully tested. Russian Academy of Sciences, St. Petersburg, Russia Director of the Institute of Physics and Technology about flying, Nobel Prize winner Academician Alferov, recently participated in the Vladivostok area of nanotechnology, microelectronics Prospect academic forum to Media made the above statement. But did not disclose the formation of Academician Alferov specific enterprise number and date.
It is noteworthy that fly Physical and Technical Institute in St. Petersburg about the use of nanotechnology to create a new pole joint solar cells, solar radiation intensity is concentrated at 1,000 times the case, to ensure that the output power of more than 35%. Using this new type of solar cells and low-cost Fresnel lens developed the electron converter components and solar cell equipment, will ensure that the user of an independent regional electricity self-sufficient.
New nanotechnology-based solar cells will be used to make land-electron converter. In fact, this fiber media converter is to convert solar energy into electrical energy in the solar cell module. This fiber media converter is expected to annually produce 75 megawatts of electricity than in the international energy market, the market share each year will exceed 12 billion rubles.
Russian Foreign Trade Bank will establish a highly efficient solar cells nano-credit funds to enterprises. In addition, the federal government under the Military Industrialization Commission's resolution, Russia, Minsk Group of the nickel industry affiliated companies state "new energy plan" Innovation will be flying around St. Petersburg Institute of Physics, strategic partners, participate in highly efficient solar cells nano program . Norilsk Nickel Group, a subsidiary of the national "new energy plan" innovative companies in the past few years has been committed to the development of alternative energy projects. According to industry estimates, 2009 will be formally established and efficient nano solar cell business, business will be headquartered in St. Petersburg.
Academician Alferov said that the next solar cell equipment may be increased from 35% to 50%%% or even higher. He expressed the belief that solar cells will be human in the 21st century the main source of energy. People on the demand for solar photovoltaic equipment will be 30% average annual rate of rapid growth. Academician Alferov is expected that by 2020 the global electron converter generating capacity will exceed 50 giv'at. In other words, in the next 20 years, solar power equipment market will grow 140 times.
Crystalline silicon solar cells
Research to develop integrated production only 54µm thick crystal silicon solar cell, conversion efficiency of 12.1%
It is reported that Japan's Institute of Industrial Science and Technology (JST) using amorphous silicon and crystalline silicon heterojunction developed a 54µm thick solar cell modules, and has confirmed that cell conversion efficiency of 12.1%. Production & Research Institute in July 2008 ranged from 28 to 29, the future of the Science Museum in Tokyo, Japan at the "results of the fourth solar energy research center report" on the release of such solar cells. Crystalline silicon solar cells and the existence of crystalline silicon supply prices and other serious problems. The thin is the decisive factor in cutting costs, increasing R & D activity.
The use of amorphous silicon and crystalline silicon heterojunction solar cells developed in the crystalline silicon layer of one or both sides of the amorphous silicon thin film formation. This Sanyo developed "HIT (heterojunction with intrinsic thin layer)" structure is basically the same unit.
This time, producing comprehensive study using double-sided form in the crystalline silicon layer of amorphous silicon thin films can greatly reduce the thickness of crystalline silicon to achieve a thickness of only 54µm. "In the double heterostructure-based products for the world's thinnest" (JST). The cells can be easily bent by hand.
However, after the thin-cell conversion efficiency is decreased. Thickness of 300µm, the conversion efficiency of 17.5%, while the thickness of 54µm, the conversion efficiency dropped to 12.1%. This is after thinning, the infrared wavelength greater than 900µm due to reduced efficiency.
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