Physics
Photoinduced Electron Transfer in Dye-Sensitized Solar Cells
Quick fact
A dye-sensitized solar cell can be made with everyday materials like a raspberry juice dye and a thin layer of titanium dioxide, and it still produces electricity from sunlight!
Why this is interesting
You know how plants turn sunlight into chemical fuel? Dye-sensitized solar cells do something similar—but instead of making sugar, they make electricity. How does a single dye molecule turn light into a current?