New Perovskite Solar Cells Drive Up Efficiency By 20.9 Percent

Posted: Jul 3 2018, 6:14am CDT | by , in Latest Science News


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New Perovskite Solar Cells Drive Up Efficiency by 20.9 Percent

Surrey Researchers Develops Next Generation Perovskite Solar Cells.

A team of researchers at the University of Surrey have made an astonishing advancement in solar cell technology, the perovskite solar cells produced by them have broken all earlier records of power conversion efficiency.

Perovskite is a calcium titanium oxide mineral that was first discovered in 1839, Gustav Rose, a Russian scientist first found them in the area of Ural Mountains, this mineral received its name after famous Russian mineralogist,88 Lev Perovski.

Researchers around the world have always considered perovskite material to be the future of solar technology, this material is much cheaper as compared to crystalline silicone which is currently used by most of the solar panel manufacturers. Also, the power conversion efficiency (PCE) offered by both these substances is around the same.

According to the report that was published in the Science, the researchers invented a new way to minimize the side effects of non-radiative recombination process, this undesired process was the main reason behind the lower energy generation efficiency of the perovskite solar cells.

The research team invented a new method which they referred to as Solution-Process Secondary growth (SSG), during tests, this new technique showed a voltage increase of 100 millivolts by each perovskite solar cell.

With this boost, each perovskite solar cell can now produce 1.21 volt of electricity without compromising the durability and quality of solar panels. The researchers also reported that there were no issues with the electrical flow through other devices.

With a PCE count of 20.9 percent, these perovskite cells broke all earlier records of power generation.

Dr. Wei Zhang from the University of Surrey's Advanced Technology Institute, said: "The need for clean and sustainable energy that helps us to stop damaging our planet is what drives us at the Advanced Technology Institute. Our new technique confirms that there is a lot of promise with perovskite solar cells and we aim to explore this new and exciting area more in the future."

Professor Ravi Silva, Director of the Advanced Technology Institute at the University of Surrey, said: "It is pleasing to see the Advanced Technology Institute join in this global project that could provide a solution to the need for a truly sustainable, cheap and clean energy resource. This was a monumental effort from leading laboratories, researchers, and institutions from across the world, all working together for the common good."

Renewable energy sources are crucial for reducing the carbon emissions, efficient and cheaper solar panels can limit our heavy reliance on fossil fuels for electricity generation. Hopefully, these new innovations will result in the adoption of solar energy on a larger scale.

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