Shin-Etsu has established mass production process for 156 x 156mm
solar cell products that have the industry’s highest conversion
efficiency of 21%
Shin-Etsu Chemical Co., Ltd. (TOKYO:4063) 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 our company and has received a high evaluation.
Shin-Etsu Chemical possesses about 10 patents regarding this technology,
and we have decided to license of the use of these patents and its mass
production process technology.
Until now, reports were issued by solar cell manufacturers and research
institutions about achieving success in making a prototype of a solar
cell that exceeds 21% conversion efficiency; however, in the mass
production process of 156 x 156mm practical-size advanced solar cells,
there are almost no cases that have achieved a conversion efficiency of
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, we can expect 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.
Through the licensing of its solar cell mass production technology that
it has developed so far, Shin-Etsu Chemical will aim to play an
important role in further widely spreading the use of solar cell
technology throughout society.
For inquires about this matter, please contact:
Chemical Co., Ltd.
Tetsuya Koishikawa, 81-3-3246-5091
Source: Shin-Etsu Chemical Co., Ltd.