Swiss researchers have successfully combined silicon and crystallite in a way that makes their unit a more efficient solar cell than ever before.

Scientists at the University of Lausanne, Switzerland (EPFL) have developed a solar cell with an efficiency of 29.2 percent, Renew Economics reports. The goal is to cross the 30 percent threshold in the future.

The efficiency of solar panels has increased steadily in recent years, but silicon panels are nearing their peak performance. Silicon-based solar cells, which are widely used globally, can operate with efficiency up to 27 percent due to the fundamental limitations of their thermodynamic properties.

So EPFL engineers are working to overcome the limitations of silicon. To do this, they are combined with cells that can absorb and use the blue and green regions of the light spectrum more efficiently. As a result, the so-called tandem solar cell was created.

Of these, the most widely used are perovskite crystals, which were shown a few years ago to increase the efficiency of silicon without increasing manufacturing costs. However, EPFL experts found that the perovskite roughened silicone surface coating retained its efficacy.

To change this, a process began in 2018 to grow crystals on silicon in a uniform manner. This resulted in a current score of 29.2 percent. However, we managed to get past it Record last year.

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Experts are now working to cross the 30 percent threshold and make manufacturing technology marketable.

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