Related topics: solar cells

Colloidal quantum dots make LEDs shine bright in the infrared

The ideal optoelectronic semiconductor material would be a strong light emitter and an efficient charge conductor to allow for electrical injection in devices. These two conditions, when met, can lead to highly efficient ...

Why battery-powered vehicles stack up better than hydrogen

Low energy efficiency is already a major problem for petrol and diesel vehicles. Typically, only 20% of the overall well-to-wheel energy is actually used to power these vehicles. The other 80% is lost through oil extraction, ...

Record-breaking solar cells get ready for mass production

Sandwiching an oxygen-rich layer of silicon between a solar cell and its metal contact has allowed researchers in Europe to break performance records for the efficiency with which silicon solar cells convert sunlight into ...

Getting rid of sweat at the push of a button

The Swiss sportswear manufacturer KJUS presented the world's first ski jacket with an integrated electronic user-controlled membrane on November 15. Thanks to the HYDRO_BOT technology developed together with Empa, the ski ...

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