RoseStreet Labs Energy Announces Breakthrough Solar Cell Technology

RoseStreet Labs Energy, Inc. (RSLE) has announced a laboratory demonstration of its multi-brand PV system featuring three different light absorption areas integrated into a single-layered thin-film system.

This breakthrough demonstration is based on the IBand technology of RSLE. This technology promises to deliver thin-film solar efficiencies of more than 35%.

Efficient solar cells need customized utilization of the entire solar spectrum. Presently, this can be obtained in an expensive and complex technology in which numerous solar cells with various band gaps are series-connected. A simpler approach involves a single semiconductor having numerous gaps sensitive to various parts of the sun’s solar spectrum; however, this has not materialized.

RSLE’s intermediate band solar cell is a thin film technology that is based on the detection of mismatched alloys. This simple three-bandgaps, one junction system has the capability to considerably improve power output and solar light absorption in comparison with III-V triple junction compound semiconductor systems.