Lykeio Arhangelou “Apostolos Markos”

It is a kind of battery that derives its energy from the light energy received from the lamp or.... the sun!

A dye sensitized solar cell consists of two conducting glass electrodes

electrode (1) is coated with a thin layer of titanium dioxide stained with the dye which produces electrons by photo excitation

electrode (2) is coated with graphite carbon layer which helps the transfer of electrons through the iodide electrolyte back to electrode (1)

in a sandwich arrangement with an iodide electrolyte.

TiO2/dye molecules

electrode (1)

Graphite

electrode (2)

Iodide electrolyte

• Low-cost materials and low manufacturing

cost.

• Works effectively in low lighting conditions.

• Less susceptible to losing energy to heat.