The object
Grätzel co-invented a dye-sensitized solar-cell architecture that uses a nanocrystalline semiconductor film to convert light to electricity. The tangible photovoltaic device opened a distinct low-light and materials-efficient solar-cell approach and became an influential platform in energy research and manufacturing.
01
What Michael did
Co-invented the dye-sensitized nanocrystalline solar cell commonly called the Grätzel cell.
02
Why it matters
The European Patent Office credits the Grätzel cell with launching a new photovoltaic technology and inducted him into its Inventor Award community.
03
Living-status check
EPFL's 2026 laboratory profile lists Grätzel as professor emeritus and a scientific adviser, recording current activity.