Researchers in South Korea have analyzed the effects of alkali doping on the fill factor of kesterite solar cells and have built a device on a flexible metal foil optimized with a sodium fluoride doping layer.
Scientists in the United States theorize that a ‘double absorber’ cell comprising two active thin-film layers within one cell stack could achieve impressive efficiencies, whilst eliminating many of the challenges inherent to the design of tandem cells. For now though, it’s only on paper.
An international research group has found that the presence of a few lattice defects in a kesterite PV cell material can actually improve efficiency, rather than lowering it. The group believes that kesterite PV cells could see mass production within the next decade.
Researchers at Australia’s University of New South Wales have surpassed 10% efficiency for a cell based on copper zinc tin sulfide – sulfide kesterite. It is the fourth time in two years the group has set a new record for the efficiency of cells based on such materials.
A*Star researchers, in a bid to find an alternative to silicon-based solar cells, are investigating a new material that is more cost-effective and easier to produce that could also lead to more efficient solar cells.
A research team from the SPECIFIC Innovation and Knowledge Centre at Swansea University has developed a method that could lead to efficiency improvements in CZTS solar cells.
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