Layering Solar Cells??

Not sure if this is new or old but here it is....
The idea is simple: just stack different semiconducting materials that collect different frequencies of light on top of each other, allow the light to pass through from one to the next, and collect the energy they all produce at once.
http://gizmodo.com/simply-layering-solar-cells-could-make-them-as-cheap-as-1617474107
Don
The idea is simple: just stack different semiconducting materials that collect different frequencies of light on top of each other, allow the light to pass through from one to the next, and collect the energy they all produce at once.
http://gizmodo.com/simply-layering-solar-cells-could-make-them-as-cheap-as-1617474107
Don
Comments
It has been worked on:
http://en.wikipedia.org/wiki/Multijunction_photovoltaic_cell
In the end, it will be what hits retail and the $$$/Watt costs. May take awhile.
-Bill