GoKawiilYunnan University team builds perovskite solar cells that work underwater
Researchers led by Simin Ma at Yunnan University developed perovskite solar cells specifically tuned to convert the blue-shifted light that penetrates several meters underwater into electricity. They addressed the material's usual weakness to moisture by adding polyhexamethylene guanidine hydrochloride, which forms a water-repelling layer and strengthens the crystal structure, improving both durability and power output.