Amazing Things

Solar Panels Of The Future Will Generate Energy From Raindrops


A team of scientists from China have developed a prototype of a new solar cell which could change the way we utilize solar panels in future. It is no secret that the solar technology has significantly facilitated people in their use of energy. The only gripe with solar panels is that they cannot produce power unless the weather conditions are clement. For instance, solar panels can only store a limited amount of energy when the skies are covered with clouds. It’s true that engineers have developed decent solar panels from time to time but not a development such as this.

Solar panels

Researchers from China are now in a position to produce electricity using merely raindrops. This comes courtesy of a slim layer of graphene for coating solar cells when they are tested. As most of you science students would be aware, graphene is a good conductor which has a number of different advantages. It only requires a layer as thick as one atom for a gazillion electrons to move across the surface. Graphene binds the electrons with ions that are positively charged. We commonly term this entire process as Lewis acid base interaction.

These solar cells are stimulated using incident light on days when the sun shines brightly and using raindrops when there is rainfall. This results in energy conversion efficiency worth of 6.53% as well as a voltage worth hundreds of mV. Salt that exists in rainwater is separated as calcium and sodium ions. This makes water and graphene a splendid combo for energy creation. The natural water sticks to graphene and forms double layers with graphene electrons. What results is a difference in energy between the layers the strength of which is such that electricity is generated. For more information, you may head over to Angewandte Chemie Journal.


About Barry G. Morris

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