The Dutch consortium has achieved the record result by combining, in a four-terminal tandem configuration, an 18.6% efficient highly near-infrared transparent perovskite with a prototype of a c-Si interdigitated back contact (IBC) silicon heteroJunction (SHJ) cell developed by Japanese electronics manufacturer Panasonic. The perovskite cell was also combined with other kinds of solar cells and other remarkable record efficiencies were hit.
MiaSolé and Solliance have achieved record performance by optimizing the bandgap and the efficiency of both the rigid semi-transparent perovskite top cell and the flexible CIGS bottom cell.
Scientists in the Netherlands fabricated three different perovskite layers, all using the same process. The three cells are all tuned to different bandgaps in order to absorb different wavelengths of light. A triple-junction device incorporating all three achieved 16.8% conversion efficiency. This, the researchers say, is a promising result for the technology, though would require the development of new wide-bandgap perovskites to push much further.
Scientists in the Netherlands are trialing a floating solar installation based on flexible thin-film PV modules. The idea behind their concept is that such modules, in combination with a newly designed flexible racking system, will create a system able to roll with the movement of the water, rather than attempting to defy it.
Researchers led by Belgian institute imec claim to have achieved the result with a 1cm² perovskite tandem solar cell. The result tops the 24.6% efficiency the consortium announced in September 2018. The cell’s developers are now aiming for 30%.
European research group Solliance says its perovskite modules have passed three key industry standard reliability tests: Light soaking, damp heat and thermal cycling. The group said it is the first time perovskite modules of that size have achieved such results and represents a milestone in the technology’s move toward commercialization.
Manufacturers and research institutes from across Europe have announced plans to collaborate on creating improved processes for CIGS module production. Optimistically named SUCCESS, the project targets production line efficiencies of better than 20% for 30x30cm modules.
California-based Hanergy subsidiary Miasolé and European perovskite research institute Solliance have combined their thin film expertise to produce a 23% efficient flexible tandem device consisting of a semi-transparent perovskite cell on top of a flexible CIGS counterpart.
The cell was created by applying a newly developed perovskite cell on top of an industrial bifacial crystalline silicon version. The resulting cell is said to better harvest sunlight, as one unit is optimized for high energy photons and the other absorbs low energy particles.
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