The Graetzel Cell is a Solar power cell made from a dye, Titanium Oxide, and an Iodine Electrolyte. These solar cells are based on a discovery by a Swiss chemist named Micheal Graetzel. The solar cells are currently being produced in Wales by a company called G24 Innovations. The Titanium Oxide, Iodine Electrolyte combination makes solar cells simpler and cheaper to produce than their silicone based counter parts. There are two other potential advantages to this solar cell design. One is that the simplicity of the design removes the need for a glass or rigid plastic container around the cell, so the solar cells from G24 can be flexible and light weight. Two is that the cells can produce electricity in low light situations.

More information from the Guardian.