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Bilateral solar panels

22.01.2021

An international team from the King Abdullah University of Science and Technology in Saudi Arabia (KAUST) and the University of Toronto Engineering (Canada) has developed a solar cell that combines the best features of perovskite and silicon technologies.

Today there are tandem solar cells that combine perovskite and silicon. Compared to conventional silicon batteries, these cells are more efficient at converting sunlight into electricity by absorbing additional spectrum.

Specialists offer a two-way tandem configuration, which not only absorbs the widest possible spectrum of direct sunlight, but also captures scattered reflected light (albedo). This design allows the battery to generate a record amount of energy.

The new batteries are double sided. Their front part captures direct sunlight, and the back part captures the light that is reflected from the ground or other surfaces. It is important that such batteries can be produced on existing equipment without complicating the technology.

The potential for capturing indirect sunlight has been studied before, but so far it has not been possible to verify it experimentally. Now, researchers have finally been able to solve the scientific and engineering challenges required to absorb indirect light. Tests have shown that the bifacial tandem solar array generates nearly 25% more power than any commercially available solar panel.

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A joint research team from the Carnegie Institution, Washington, USA, and Yanshan University, China, has synthesized a material that is carbon in a new form. This material is very, very strong, but the most interesting thing is that it has elastic properties, like rubber. What's more, the new form of carbon is capable of conducting light and electricity through itself, making it possible to use all this in a very wide range of applications, from space and military equipment to household appliances.

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"Lightweight materials with high strength and elasticity are required in a wide variety of applications. In some cases, these materials are used in practice, despite their high cost, the light weight and other unique properties of such materials come to the fore," says Zhisheng Zhao ( Zhisheng Zhao is a professor at Yanshan University.

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