- Who
- Helmholtz-Zentrum Berlin
- What
- 32.5 percentage
- Where
- Germany ()
- When
The most efficient solar cell is a perovskite-silicon tandem cell developed by a team of researchers at the Helmholtz-Zentrum Berlin in Germany. The details of this design, which achieved an energy conversion efficiency of 32.5%, were published in Science on 6 July 2023.
Tandem solar cells use a two-layer design. They have an upper layer made from a kind of crystal called perovskite, optimized to absorb energy from visible light, and a lower layer of silicon to absorb energy from infrared rays.
This particular design used an innovative textured surface made from micrometre-scale pyramidal structures to trap light more effectively.
