California Institute of Technology This advanced research has been published in the February 14 issue of the “natural materials” on, but the technology has not yet been formally put into production, but researchers on the use of mass production cell silicon thin film solar metal is full of confidence. Project researchers,latitude d505 battery , Knight Professor of Chemistry at the California Institute of Technology? Reeves said: “In the future the manufacture of solar cells must first examine the spectrum of absorption capacity, and must take account of cost and convenience have all the advantages of silicon son, we too more reason to believe that the coming years it will become thin film cell production of force. ”
IBM low cost high performance thin film batteries available
Almost at the California Institute of Technology announced that the latest research results in the same time, the materials scientist David Meads IBM?, And his research team in the latest issue of “advanced materials” published a report of study, IBM has officially announced the successful production of one must have a low price but high photoelectric conversion rate of the multi-thin-film compound solar cells. With the new production process, the thin-film solar cells of the photoelectric conversion rates as high as 9.6%, this information is not a laboratory of words, but by the U. S. Department of Energy formally tested and published. It is noteworthy that after the same material (not including indium, gallium or cadmium compounds) made of thin battery photoelectric conversion rate film is only 6.7% compared to this new type of thin film batteries to 40% less effective, it also creates the same type of materials, thin film performance solar cells convert the world record. sony vgp-bps13
Compared to traditional multi-thin film solar cells made of this new type of thin-film batteries on photoelectric conversion efficiency is not the same The Xiafeng, and has an absolute advantage in cost. The first U. S. Solar Inc. (First Solar) released the latest data, they produce copper indium selenide gallium (CIGS) thin-film batteries and polycrystalline thin-film cadmium telluride cells conversion efficiency of 11%, but the price per watt is up to $ 1 U.S., mainly from tellurium, indium and other raw materials scarcity, high cost due. IBM’s new thin-film battery materials are copper, zinc, tin, selenium and sulfur combination of five kinds of raw materials are relatively common, inexpensive materials.
Cautiously optimistic about the prospects
Currently, these two techniques are not yet at an advanced stage of production, but for now the cost and effectiveness of the use of solar energy in the difficult predicament of having introduced two new ideas, low cost and close to the traditional current level of efficiency so they have a prospect of a successful implementation.
Currently, the PV industry today, cell type silicon solar is still the general public, there are many solar energy companies such as Sharp of Japan, pledged to develop the use of organic polymers and other raw materials, manufacture of solar cells in thin layers, but the photoelectric conversion areas, organic thin-film batteries and traditional silicon cells there is a large gap, in brief, the cells of high efficiency silicon, but expensive, although cheaper non-silicon cells, but low yield. pa3399u-1brs , The nano-crystalline solar cells as a new type of photovoltaic cells are still studying.
In this context, California Institute of Technology in organic matter, plastic and silicon efficient and flexible combination of the battery, effectively reducing the cost, probably at the moment of research on solar cells offers a new space to think, but once they come to be applied in practice, the son of silicon from the battery in a sense, has also spawned a new industry.
For new batteries IBM thin-film surface, mead research team is just to replace the traditional batteries composed of several thin film, some raw materials, but this new type of subtle thin film battery is in the process unique manufacturing. Batteries conventional thin film during the manufacturing process for the state of gasification in a vacuum deposition and deposition, which takes a lot of energy to achieve; Meads and colleagues are mostly in liquid and particles mixed state under the operation, such as copper and tin is a liquid, while zinc is a state of particles, which will significantly reduce the manufacturing process of batteries, dipping, spraying and the cost of the casting opening. IBM said the company did not intend to technology for its own thin-film batteries, but rather intended to serve as the holder of the patent for the technology to other companies.
However, two types of technology, after all, is still in the laboratory has not yet been tested by practice, but based on past experience, the laboratory photovoltaic cells in the “real” in efficiency will always be updated. For solar cells, for example monocrystalline silicon, in the laboratory the highest photoelectric conversion rate of 24.7%, but in the practical application of mass production has dropped to about 15%. Meanwhile, nuclear energy and other clean energy with the simultaneous development of industry in the reporting process of competition is an objective reality, the choice is inevitable, thinkpad r40 battery , solar energy can count on new technologies, the practical realization of cheap and effective, including traditional energy sources, including a variety of rival energy, but also left to the test of practice.
