Stacking solar cells leads to more efficient energy collection, lower bills

Lately we keep receiving news of big advancements in the solar technology.

http://o.aolcdn.com/hss/storage/midas/a29c05632e22e50b8395448a94455c8a/200552697/solar.jpg

Markedly, there’s a trend here, and I predict soon there will be an explosion where solar tech will become mainstream and not something that costs a small fortune to setup and yields poor results.

Maybe it will be in all our daily gadgets.

I mean, if we only could harvest like 20% of the solar energy back to our smartphones, thru ambient light (there’s no point in holding your phone under the sun while you are melting away…) then that would be great (to start with)

http://www.engadget.com/2014/08/08/stacking-solar-cells/

Do you see this solar tech becoming mainstream? When? Soon enough?