Sanyo develops solar cell that's thinner than hair

Serkan Toto

Dr. Serkan Toto is an independent consultant and advisor focusing on Japan’s web, mobile and social gaming industries. Based in Tokyo, he works together with financial institutions and startups worldwide. Serkan has been the Japan contributor for TechCrunch.com since 2008. He is sept-lingual, holds an MBA and is a PhD in economics. → Learn More

Thursday, November 26th, 2009

solar_roof

Sanyo is in the news today, and again it’s about the company’s green tech power. The company today announced [JP] it will do everything to become Japan’s top player in the domestic solar industry by 2012 and eventually one of the top three solar companies on a global level. At the same time, the Nikkei reports [registration required, paid subscription] that Sanyo has succeeded in developing a solar cell that’s thinner than a human hair.

The company says it will benefit greatly from a new feed-in tariff program by the Japanese government introduced this month for green energy firms. Another factor for Sanyo’s self-confidence should be the speed with which it innovates. Their new prototype solar cell is just 58 micrometers thick, about one-fourth of most solar cells currently out there. (Sorry, there’s no picture available yet)

It’s made of two types of silicon whose structure Sanyo optimized to achieve a conversion efficiency of 22%. It’s said to be as bendable as paper, meaning it can be used for a variety of purposes, for example on uneven surfaces.

Sanyo says this technology might help reduce prices by as much as 25% when compared to solar cells available today. The company wants to commercialize the solar cells by 2020.

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