Make a Grätzel cell

Solar cells use light from the sun to produce electricity. Using some simple materials we can make a type of solar cell called a ‘dye-sensitised solar cell.’ This type of cell is newer and cheaper than those we see on the roofs of houses, and can even be used to make flexible solar panels.

To make the dye-sensitised solar cell we will prepare two halves of the cell and then put them together. One half is called a ‘working electrode’ and the other is called a ‘counter electrode’.