Researchers demonstrate that wrinkles and folds on polymer surfaces can improve the light-harvesting capabilities of solar cells, increasing external quantum efficiencies by up to 600% in the near-infrared. This fabrication method, which employs elastic instabilities of thin, layered materials, may be economical for patterning photonic structures over large areas.
- Jong Bok Kim
- Pilnam Kim
- Yueh-Lin Loo
