Why is HJT + perovskite the best combination for tandem solar cells?

HJT cells and perovskite cells have complementary advantages that make them a good match for tandem solar cells. HJT cells have a high efficiency, but they can only absorb light in the visible and near-infrared spectrum. Perovskite cells have a lower efficiency, but they can absorb light in the ultraviolet and infrared spectrum. By combining these two materials, tandem cells can capture a wider range of the solar spectrum and generate more electricity.

What are the advantages of HJT + perovskite tandem solar cells?

In addition to their higher efficiency, HJT + perovskite tandem solar cells also offer a number of other advantages over single-junction cells, including:

• Reduced cost: Perovskite cells are relatively inexpensive to manufacture, which can help to reduce the cost of tandem solar cells.
• Longer lifetime: HJT cells have a long lifetime, which can help to reduce the cost of ownership of tandem solar cells.
• Flexibility: Tandem solar cells can be made in a variety of shapes and sizes, which makes them suitable for a wide range of applications.
• Durability: Tandem solar cells are more durable than single-junction cells, which makes them suitable for harsh environments.
• Lightweight: Tandem solar cells are lighter than single-junction cells, which makes them easier to transport and install.

When will HJT + perovskite tandem solar cells be ready to use and buy?

HJT + perovskite tandem solar cells are still under development, but they have the potential to be commercially viable in the near future. In 2023, several companies announced that they were developing HJT + perovskite tandem solar cells for commercial use.

Who produces HJT + perovskite tandem solar cells?

A number of companies are developing HJT + perovskite tandem solar cells, including:

• 3Sun
• Solar Frontier
• Renshine Solar
• Oxford PV
• G24i

These companies are working to improve the efficiency and durability of HJT + perovskite tandem solar cells so that they can be manufactured and sold at a competitive price.