Potassium gives perovskite-based solar cells an efficiency boost
A simple potassium solution could boost the efficiency of next-generation solar cells, by enabling them to convert more sunlight into electricity.
A simple potassium solution could boost the efficiency of next-generation solar cells, by enabling them to convert more sunlight into electricity.
Materials Science
Mar 21, 2018
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219
The world's best tandem solar cells consisting of a silicon bottom cell and a perovskite top cell can today convert about a third of the incident solar radiation into electrical energy. These are record values, especially ...
Analytical Chemistry
Jul 10, 2023
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5
Tandem solar cells made of perovskite and silicon enable significantly higher efficiencies than silicon solar cells alone. Tandem cells from HZB have already achieved several world records. Most recently, in November 2021, ...
Nanomaterials
Oct 24, 2022
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195
Scientists at the University of Basel have found a way to change the spatial arrangement of bipyridine molecules on a surface. These potential components of dye-sensitized solar cells form complexes with metals and thereby ...
Materials Science
Oct 9, 2018
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82
To determine how efficient new solar cells convert sunlight into electricity, small sample cells are tested under ideal conditions. However, the reported efficiency is not very representative of the actual annual yield when ...
Energy & Green Tech
Aug 22, 2017
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343
Solar panels have tremendous potential to provide affordable renewable energy, but many people see traditional black and blue panels as an eyesore. Architects, homeowners and city planners may be more open to the technology ...
Nanophysics
Aug 15, 2017
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126
Solar panels are proliferating across the globe to help reduce the world's dependency on fossil fuels. But conventional panels are not without environmental costs, too. Now scientists are reporting in the Journal of the American ...
Materials Science
Sep 28, 2016
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165
Scientists at the Energy Department's National Renewable Energy Laboratory (NREL) and at the Swiss Center for Electronics and Microtechnology (CSEM) have jointly set a new world record for converting non-concentrated (1-sun) ...
Energy & Green Tech
Jan 6, 2016
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362
Stacking two solar cells one over the other has advantages: Because the energy is "harvested" in two stages, and overall the sunlight can be converted to electricity more efficiently. Empa researchers have come up with a ...
Energy & Green Tech
Nov 23, 2015
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40
Researchers at the University of Rome Tor Vergata, the Italian Institute of Technology (IIT) and its spin-off, Graphene Flagship Associate Member BeDimensional, in cooperation with ENEA have successfully combined graphene ...
Materials Science
Mar 3, 2020
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60