Solar technology has shown hope in helping humans get rid of the more destructive energy sources on earth,media BGR reported. It has been used in a variety of applications, from powering civilian homes to solar panels on the International Space Station. But solar panels have one big limitation: they can’t generate electricity in the dark. But according to a new paper published in the journal ACS Photonics, researchers from the University of California, Davis, explain how they built so-called “anti-solar panels.”
As the name suggests, this new “solar” technology is the opposite of traditional solar panels. Traditional solar panels work by capturing sunlight and converting it into energy that can be used for a variety of purposes. But how does such a thing work in turn? In fact, it’s simple: just like using conventional solar panels to capture the transfer of energy from the sun to Earth, the “anti-solar panel” captures the energy that travels from Earth to space.
When one side of the earth falls into darkness, it almost always gets cold. Heat is just another form of energy that radiates from the earth’s surface and in most cases is lost. The new battery board is trying to actively capture heat and use it to generate available energy.
The researchers explained:
In order to generate electricity after sunset, we considered another photovoltaic concept, which uses the Earth as a heat source and uses the night sky as a radiator, thus forming a “night photovoltaic cell” that uses thermal lym photovoltaic technology and radiation cooling.
Currently, the system generates about 25 percent of the energy generated by solar panels a day. Nevertheless, this is actually the “free” energy that can be captured and used, and it may be important in a large enough range.