Shin-Etsu Chemical to Begin Licensing of Its 21% Conversion Efficiency Solar Cell Manufacturing Technology
Shin-Etsu Chemical, of Tokyo, Japan, has established a mass production process for 156 x 156mm advanced mono crystalline silicon solar cells that have a conversion efficiency of 21%. This level of conversion efficiency – a measurement of how much of the sun’s energy a solar cell can convert to usable electrical energy – is the highest level in the industry achieved in the mass production process of 156 x 156mm practical-size solar cell products, a level that has already been confirmed outside of the company and has received a high evaluation.
Shin-Etsu Chemical possesses about 10 patents regarding this technology, and the company decided to license of the use of these patents and its mass production process technology.
In addition to Shin-Etsu Chemical possessing the technology for the process to mass-produce solar cells with a high conversion efficiency of 21%, the technology has the characteristic of being a relatively easy manufacturing process that is applicable to the existing mass production process that is based on screen-printing technology. In other words, by introducing a few additional systems into the existing mass production process, it becomes possible to mass produce solar cells with a conversion efficiency of 21%. Another characteristic is that it is a bifacial light-receiving type of solar cell. Because of this characteristic, Shin-Etsu expects greater out put power generation in a strong reflected-light environment such as on snow or on water surfaces. In addition, because it is possible to freely orient the planes to constitute a solar panel module, the module exhibits high performance, particularly in areas where snow and sand fall and pile up on the module. (7/25/14)
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