It is easy to see why transparent solar cells were not conceivable until now - if the panel was transparent, visible light would simply pass through! So how does the new solar cell trap visible light? It doesn’t. The UCLA team that developed this new technology made the device from a photoactive plastic that mainly and mixture of silver nano-wire and titanium dioxide nano-particles which could replace the opaque metal electrode used in the past. This composite electrode also allows the solar cells to be fabricated economically. In all, the transparent solar cells are light-weight, flexible and can be produced in high volume at a low cost.