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 ...

3-D nanoprinting facilitates communication with light

At Karlsruhe Institute of Technology (KIT), researchers have developed a flexible and efficient concept to combine optical components in compact systems. They use a high-resolution 3-D printing process to produce tiny beam-shaping ...

Making the nitrate problem of agriculture vanish into air

Nitrate concentrations of our groundwater are among the highest in the European Union. The main reason is over-fertilization of fields with feces from livestock farming. Every year, a "liquid manure shower" of 200 million ...

Optimized positioning of geothermal boreholes reduces seismicity

When constructing geothermal systems for the extraction of heat from underground hot water reservoirs, optimal positioning of the boreholes can considerably reduce seismicity. This is the result of induced seismicity studies ...

Optical path recognition made audible

Students of Karlsruhe Institute of Technology (KIT) have developed an image recognition algorithm that identifies obstacles and recognizes free pathways. Based on this, the iXpoint software company has now developed the Camassia ...

Mars mission—Testing instruments in the Black Forest

Meteorite impacts and geological formations: So far, exploration of Mars has focused on its surface. The "InSight" mission of NASA and European partners starting on May 5, 2018 will now concentrate on the "inner values" of ...

Medical tests with less fear

It is a principle of modern architecture that less may be more. This principle does not apply to information as a basis of far-reaching decisions, it seems. But: Many people shy away from going to the doctor's, because they ...

A cost and resource analysis of sodium-ion batteries

Lithium and cobalt are fundamental components of lithium-ion batteries. Analysis by researchers at the Helmholtz Institute Ulm (HIU) of the Karlsruhe Institute of Technology (KIT) shows that the availability of both elements ...

Power-to-gas facility with high efficiency

The natural gas network may serve as a buffer for weather-dependent electricity from the wind and sun. This requires economically efficient processes to use electricity for the production of chemical energy carriers. The ...

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