Latest news on tandem solar cells

Can tandem solar cells make solar panels more efficient?

However, new research published in Nature has shown that future solar panels could reach efficiencies as high as 34% by exploiting a new technology called tandem solar cells. The research demonstrates a record power conversion efficiency for tandem solar cells. What are tandem solar cells?

Can a tandem solar cell combines silicon and perovskite?

In the new nature paper, a team of researchers at the energy giant LONGi has reported a new tandem solar cell that combines silicon and perovskite materials. Thanks to their improved sunlight harvesting, the new perovskite-silicon tandem has achieved a world record 33.89% efficiency.

How do tandem solar cells work?

In a typical tandem device, the perovskite cell is positioned above the silicon cell; each cell is made of multiple layers that all play a part in turning light into electricity (see ‘Anatomy of a tandem solar cell’). Sunlight hits the perovskite first and releases electrons from the material, leaving behind positively charged ‘holes’.

What are the benefits of tandem solar panels?

The new record-breaking tandem cells can capture an additional 60% of solar energy. This means fewer panels are needed to produce the same energy, reducing installation costs and the land (or roof area) required for solar farms. It also means that power plant operators will generate solar energy at a higher profit.

Could a tandem solar cell deliver more power than a silicon cell?

Because each material absorbs energy from different wavelengths of sunlight, tandems could potentially deliver at least 20% more power than a silicon cell alone; some scientists project much greater gains.

How efficient are Longi tandem solar cells?

In November 2023, the LONGi tandem solar cell team achieved an efficiency of 33.9% for tandem cells. Less than a year later, they have broken the record once again, demonstrating their strong R&D capabilities and relentless pursuit of exploration. To achieve this breakthrough, LONGi’s R&D team conducted extensive experiments in several areas.