Question about the light spectrum.
https://www.natcoresolar.com/portal/index.php?option=com_content&view=article&id=61&Itemid=29
Quote-
Natcore envisions its LPD process allowing the manufacture of a tandem cell consisting of up to three cells arranged one on top the other, starting with an ordinary silicon solar cell on the bottom.
Something called a cell interconnect comes next, then a second cell made of silicon quantum dots. This solar cell is tuned to absorb light in the middle of the spectrum, represented in the picture by the green color.
A second cell interconnect follows and a third cell, another silicon quantum dot device, sits on top. This uppermost cell is tuned to absorb the blue end of the spectrum.
The combination of all three operating in tandem would produce well over 30% efficiency — or about double the output of current technology.
End.
Natcore's tandem process packs layers of 'finely tuned for middle spectrum' silica, an interconnect, then another differently tuned layer for the blue light spectrum. The goal being 30%+++ efficiency.
So what's to stop another company from adding yet another layer capturing some other part of the light spectrum? Wondering.\\
r.