Scientists in the US have developed solar cells with a record efficiency of almost 50%.
As reported in the journal Nature Energy team of the National laboratory for the study of renewable energy (USA) has ensured that their batteries have shown an efficiency of 39.2% in natural light and 47,1% under concentrated sunlight. It is noted that the usual efficiency of solar panels does not exceed 20%.
The new solar cell consists of six layers involved in the actual production of energy. Each layer is made of a separate material. Consisting of rare earth elements that capture photons with different energy. The battery thinner than a human hair.
The drawback to solar is its high cost due to the very complex and extremely costly production technology.
Wrote NEWS.ru. researchers from China has introduced a new version of drip triboelectric generator, which receives energy from the friction of the falling drops on the surface.
According to scientists, a drop of water, a volume of 100 MICS of falling from a height of 15 cm, forming voltage of 140 Volts, allowing you to include hundreds of small led bulbs.
