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Low-cost perovskite solar cells

 

Source: DST

 Context: Indian scientists at the International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Hyderabad, have developed highly stable, low-cost Carbon-based perovskite solar cells (CPSCs).

  • These solar cells overcome the challenges of degradation during operation, making them suitable for large-scale commercialization.

  

What are Perovskite solar cells (PSCs)?

 Perovskite solar cells (PSCs) are a type of solar cell that utilizes perovskite materials as the light-harvesting active layer to convert sunlight into electricity. The most commonly used perovskite material in solar cells is methylammonium lead iodide (MAPbI3).

 

Issues with PSCs?

 Perovskite solar cells (PSCs) face stability issues when exposed to heat, moisture, and other environmental factors.

 

Solution:

The scientists engineered MaPbI3 to enhance thermal stability by incorporating Guanidinium iodide (GuI) and moisture stability by using 5-amino valeric acid iodide (5-AVAI) for surface passivation. This breakthrough can resolve stability concerns and reduce fabrication costs, potentially accelerating the commercialization of perovskite-based niche products.

  

Significance of PSCs:

 They have gained significant attention in recent years due to their potential to revolutionize the solar energy industry, offering advantages such as low-cost manufacturing, high efficiency, and the ability to be printed onto flexible substrates.