Related topics: fat cells

Hot electrons harvested without tricks

Semiconductors convert energy from photons (light) into an electron current. However, some photons carry too much energy for the material to absorb. These photons produce "hot electrons," and the excess energy of these electrons ...

Watching energy transport through biomimetic nanotubes

Scientists from the University of Groningen (the Netherlands) and the University of Würzburg (Germany) have investigated a simple biomimetic light-harvesting system using advanced spectroscopy combined with a microfluidic ...

Understanding how plants use sunlight

Plants rely on the energy in sunlight to produce the nutrients they need. But sometimes they absorb more energy than they can use, and that excess can damage critical proteins. To protect themselves, they convert the excess ...

Image: Mapping the night

Imaging Earth from space is a favourite pastime for astronauts on the International space Station. They can set their cameras to automatically snap photos while they work, but often make time to Earth-gaze and take photos ...

Slow 'hot electrons' could improve solar cell efficiency

Photons with energy higher than the band gap of the semiconductor absorbing them give rise to what are known as hot electrons. The extra energy in respect to the band gap is lost very fast, as it is converted into heat and ...

Americans support net energy metering

About three out of every four Americans support hotly debated net energy metering policies, which allow residents with wind turbines and solar panels to sell excess energy back to the grid at retail rates, according to a ...

How plants manage excess solar energy

Life on earth largely depends on the conversion of light energy into chemical energy through photosynthesis by plants. However, absorption of excess sunlight can damage the complex machinery responsible for this process. ...

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