Chinese university develops high-efficiency flexible tandem solar cells

BEIJING, Feb. 6 (Xinhua) -- Scientists at China's Westlake University have unveiled a breakthrough in solar technology: ultra-thin, flexible tandem solar cells that can achieve a record 23.4 percent power conversion efficiency.

The cells, with a thickness comparable to the diameter of a human hair, combine perovskite and copper indium gallium selenide (CIGS) layers, offering promising applications in wearable de