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Dienstag, 29. Mai 2012

manufacturing printed organic

Von mademms, 09:47
A new method of manufacturing printed organic solar cells, ultimately brings the model has the advantages of low cost,solar panel 2012dab4c51ck cheap price of the flexible solar panel.
The job of leading the Alan Haig ( AlanHeeger ), he and Guillermo - Baz ( GuillermoBazan ) shared the Nobel Prize for chemistry in 2000, is because the development of the conductive polymer, is easy for manufacturing plastic solar cells and organic light-emitting diode. Haig and Bazan are California University at Santa Barbara ( UniversityofCalifornia, SantaBarbara ) Professor of chemistry.
A higher magnification of transmission electron microscopy images, display planes stacked small molecular solar material lattice fringe,
Polymer solar cells efficiency is less than that of silicon solar cells, but it is cheaper to preparation. Organic material either with the polymer, or by the so-called" small molecules", i.e. low molecular weight organic compound, can be made into ink, a large area of printing. They are light and flexible, is expected to carry some applications, such as a roof mounted or solar battery, charging for portable electronic devices.
Use Bazan to design a novel small molecule, Haig made of a solar cell, can put according to the upper6.7% of the energy of sunlight into electric energy. Bazan predicts, within a year to achieve 9% efficiency. Although laboratory testing efficiency often far higher than the production of battery efficiency, however, this will make these materials may be comparable to the best on the market of polymer solar cells.
Up to now, improving organic solar cell performance and cost,baby clothes wholesale ukogkewe25dwe the bulk of the work has focused on the development of new polymer materials.
Bazan is taken, combine theory and experiment, the development of new small molecule materials. He first to optimize its electrical performance, making this molecule can support required by the high current and voltage, have solar power. Particularly difficult is to create a small molecular material, made good films; while the polymer is very long, and twisted into a stable films, however, small molecule is not easy to produce the plane film preparation, is a solar battery is needed for film.
In experimental platform with many times before, the Bazan group proposed an appropriate small molecule and process, can be prepared by high efficiency small molecular solar cell. This work has been in the" natural" magazine introduction material. Bazan is expected to adjust the material design, further improve the performance of.
Haig says, in the past, he was not seriously small molecular solar energy materials, because the performance is very low. " Other people have been using small molecules, but the performance is far below the polymer, " he said.
However, in the energy market, it is difficult to make organic solar cells become real competitors, especially because the silicon cells become more cheap. " Performance and service life have yet to reach that step," Yang Yang ( YangYang ) said, he is the University of California at Los Angeles ( UniversityofCalifornia, LosAngeles ) Professor of materials science and engineering. Yang Yang is studying the polymer solar energy materials, in his company, Mel ( Solarmer ) is a solar energy company, he also in his academic laboratory study of small molecular solar cell; his goal is the laboratory made batteries reach15% efficiency. But, said Yang Yang, Santa Barbara's work is very important, examples of promising small molecular solar.
As these materials in the market operation, Haig said," is too early, it's hard to know," but he thinks, efficiency has reached a considerable level,personal computer remote 2012 and the solar energy materials promising. " Now, we should be taken seriously, " he said.