In positive note, I was thinking this to be integrated in touch screen phones several years from now!
Imagine using your phone, playing with it while walking in the strees and it's charging through the solar film integrated in the screen.
Imagine using your phone, playing with it while walking in the strees and it's charging through the solar film integrated in the screen.
The power available in sunlight in perfect conditions (at the equator at midday, oriented perfectly, is around 1KW per square meter. Scaled down to iPhone 5 size gives 7.22W. The iPhone charger can provide 5W.
So maybe with extremely efficient photovoltaics you might be onto something, but unless you leave your phone flat in the sun in Ecuador over lunch, this is probably not practical. Mine lives in my pocket.