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Fraunhofer ISE Confirms Multi-Junction Solar Cell Conversion Efficiency

Author: Source: Datetime: 2016-11-13 08:36:35
multi-junction solar cellGermany Fraunhofer Solar System Research Institute (ISE) confirmed that multi-junction solar cell conversion efficiency of 30.2%.

Fraunhofer ISE and the Australian company EV Group (EVG), the use of direct wafer bonding (direct wafer bounding) process, breaking the theoretical limit of silicon solar cells, a few microns of the three five semiconductor materials into silicon.

Researchers at Fraunhofer ISE and EVG have converted a few micrometers of semiconducting material into silicon by direct wafer bonding.

From an external point of view, solar powered portable generator cells look the same, its complexity is limited to its internal operation. So you can like ordinary silicon solar cells, as integrated into the standard of PV modules.

"We are working on ways to exceed the theoretical limits of silicon solar cells, and we are able to achieve this milestone with our long-standing experience in silicon and III-V technology," said Frank Dimroth, head of Fraunhofer ISE.

Fraunhofer ISE and EVG in the 4 square centimeter area of silicon junction solar cells on the conversion efficiency to 30.2%, far more than the pure silicon solar cell current efficiency record of 26.3%, and also exceeded the theoretical efficiency of silicon solar cell limit 29.4%.
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