Researchers in China have set a new 27.2 percent efficiency record for perovskite solar cells by fixing chlorine-ion clumping, a major barrier to performance. Their simple potassium-based method creates a uniform film and boosts long-term stability, marking a major step toward commercial adoption and more reliable low-cost solar energy.Researchers in China have set a new 27.2 percent efficiency record for perovskite solar cells by fixing chlorine-ion clumping, a major barrier to performance. Their simple potassium-based method creates a uniform film and boosts long-term stability, marking a major step toward commercial adoption and more reliable low-cost solar energy.
