Produced by: MOS Video Department
At night, as the solar cell radiates and emits heat to the sky, they reach a temperature several degrees lower than the ambient air, thereby using the thermoelectric module to generate voltage and current from the temperature difference between the component and the air.
The Stanford team combines traditional solar cells with thermoelectric modules, and the entire system can work continuously during the day and at night. When the sun is running in reverse, the thermoelectric module begins to provide additional power to the solar cell.
The setup is inexpensive and, in principle, could be incorporated within existing solar cells. It is also simple, so construction in remote locations with limited resources is feasible. The R&D team now aims to optimize thermal insulation and thermoelectric components of the device and the radiative cooling performance of the solar cell.
About 750 million people in the world still do not have access to electricity at night, and this invention brings hope to mankind to obtain stable energy. At the same time, with the ongoing geopolitical conflicts and the global energy crises, societies worldwide will be facing strains, if not disasters. Therefore, it is imperative to be able to find a new, renewable, and safe technology to take advantage of solar energy to help people get through the tough times and for the years to come.
Posted by: Xueli