It is well known about solar energy that solar panels directly absorb energy from sunlight and convert it into electricity. But it is impossible to generate solar power at night. But what Australian researchers are claiming should be seen as a big step in this area.
The team from the University of New South Wales (UNSW Sydney) has used the heat generated by the Earth at night. Actually, the energy coming from the sun heats the earth throughout the day and at night our planet sends the same amount of energy back into space. This radiated energy emanates from the Earth’s surface, so a thermal emission occurs, which can be tapped. Researchers have said that this energy can be tapped into cell devices and converted into electricity.
In a study published in ACS Photonics, the team elaborates on how to make this theory a reality. Researchers used thermoradiative diodes to capture photons emanating from Earth and convert them into electricity. The researchers were able to generate electricity, although the amount of energy thus produced was about 100,000 times less than the energy supplied by the solar panel. Nevertheless, scientists are hopeful that better results can be found in the future.
Lead Associate Professor Ned Eakins-Doux of the research team said that we have shown this by generating electricity from thermoradiative diodes. Researchers hope that by implementing this technology in the future, it will be possible to charge solar panels even during the night.
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