Metal leads to the desired configuration

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 ...

Interest in tandem solar cells heats up

For decades, silicon solar cells have been used to convert energy from sunlight into electricity. However, recent improvements in perovskite alternatives are moving tandem devices—made of both silicon and perovskite—closer ...

Why perovskite solar cells are so efficient

Solar cells with efficiencies above 20% and produced at low costs – perovskites make this possible. Now, researchers of Karlsruhe Institute of Technology (KIT) have gained fundamental insight into the function of perovskite ...

Newest solar cells underperform in cloudy countries

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 ...

Nanotechnology gives green energy a green color

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 ...

Toward 'greener,' inexpensive solar cells

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 ...

New efficiency record set with dual-junction solar cell

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) ...

Tandem solar cells are more efficient

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 ...

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