Dual-layer solar cell developed at UCLA sets record for efficiently generating power - The team’s new cell converts 22.4 percent of the incoming energy from the sun, a record in power conversion efficiency for a perovskite–CIGS tandem solar cell, as reported in Science.

See the source article by following the link below:
Dual-layer solar cell developed at UCLA sets record for efficiently generating power - The team’s new cell converts 22.4 percent of the incoming energy from the sun, a record in power conversion efficiency for a perovskite–CIGS tandem solar cell, as reported in Science.