How well do solar cells really work in the Nordic climate?

In recent years the price of solar cells has fallen so dramatically that more and more people are now looking to invest in solar panels. These can be installed either as free-standing structures on roofs, or as integrated ...

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 ...

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 ...

Solar scientists rough up silicon panels to boost light capture

Power generation cost using solar panels depends on getting as much electricity out of the panels as possible while keeping the manufacturing costs low. Anyone who has considered installing solar panels might be aware of ...

An energy-efficient cleaning robot

State-of-the-art solar cells are efficient – but are even more so when they are kept clean. A cleaning robot developed by Norwegian researchers enables solar panels to deliver at full capacity.

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