Photoelectrochemical cell

Photoelectrochemical cells or PECs are solar cells and convert visible light into electrical energy. A cell consisting of a semiconductor photo anode, a cathode made ​​of metal and an electrolyte. The cells produce electrical energy, either directly, or they produce hydrogen in a process similar to the electrolysis of water.

Photo -generation cell

In this type of photo- electrochemical cell is separated into a water electrolysis into hydrogen and oxygen when the anode is exposed to light. This hydrogen can be recovered with an efficiency of around 10%.

However, the biggest problem is the corrosion of the semiconductor, which directly comes in contact with the water. For this reason, only smaller laboratory sample without economic importance in use.

Grätzel cell

Grätzel cells or dye solar cells using nanoporous titanium oxide ( TiO2) to produce electrical energy.