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Archive for July 17, 2010

RoseStreet Labs develops breakthrough multiband solar cell technology!


This story is specifically meant for those either connected with or interested in the global solar PV industry. And, it concerns a wonderful technological breakthrough!

Bob Forcier, chairman & CEO, RoseStreet Labs.

Bob Forcier, chairman & CEO, RoseStreet Labs.

Now, I’m not sure how many of you heard this story — late last month, scientists at Phoenix, Arizona, USA, based RoseStreet Labs Energy Inc. (RSLE), chairman and CEO, Bob Forcier, announced a breakthrough multiband solar cell technology.

A bit about the company: RoseStreet Labs has ventured into the semiconductor, renewable energy and life science markets with strategic investments, intellectual property development, three joint ventures and a successful spin out in personal health technology. RSLE’s first commercialization business, FlipChip International (FCI), experienced double digit growth annually and opened its FCMS joint venture in Shanghai, China.

Naturally, this prompted me to get in touch with Bob Forcier at RoseStreet Labs, with the help of Dawn Cuevas, office manager – RSL/FCI.

But first, the breakthough achievement!

RoseStreet Labs announced a breakthrough lab demo of the first known multiband photovoltaic device featuring three distinct light absorption regions integrated into a single layer thin film device.

This breakthrough is based on RSLE’s IBand technology and is the first known intermediate band solar cell reduced to practice in a laboratory demonstration. This technology illustrates great promise for high efficiency thin film solar efficiencies above 35 percent by potentially capturing the full spectrum of the sun’s spectrum.

According to the company, the intermediate band solar cell developed by RSLE is a thin film technology based on the discovery of highly mismatched alloys.

The simple and elegant three bandgaps, one junction device has the potential of significantly improved solar light absorption and higher power output than III-V triple junction compound semiconductor devices that presently hold the world record for solar efficiency. Read more…

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