Smoother perovskite films push three-layer solar cell efficiency to 30.1%

Researchers raised the efficiency of a three-layer perovskite solar cell to 30.1% by improving the smoothness of the perovskite films. The work advances perovskite photovoltaics as an alternative to silicon.

• Three-layer perovskite cell efficiency reached 30.1%
• Smoother perovskite films drove the efficiency gain
• Perovskites are seen as an alternative to silicon cells