Photovoltaic roof for highways
Researchers from Germany and Austria are testing how photovoltaic roofs may be deployed along highways. The first pilot project is planned to be implemented starting from the autumn.
Fraunhofer ISE achieves 35.9% efficiency for III-V triple-junction solar cell based on silicon
The cell, which looks externally like a device with a two-terminal architecture, was built with III-V semiconductor layers that were connected to the silicon sub-cell on the atomic level. The cell may be used in electrically powered aircraft and drones.
Fraunhofer ISE develops front/back solar cell with 26.0% efficiency
The cell showed open-circuit voltage values of up to 732 mV. It was fabricated with a back junction (BJ) design with a full-area p-n-junction at the back surface.
Evaluating tandem cells, from the bottom up
Scientists in Germany evaluated multiple silicon cell concepts based on both cost and efficiency in serving as the bottom layer in a perovskite-silicon tandem cell. The study, based on both simulation and experimental work, outlines advantages to various approaches with the silicon cell and concludes that in almost every case, perovskite-silicon tandem cells have the potential to bring solar costs down below what could be achieved with silicon alone.
