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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?