posted on Dec, 14 2014 @ 12:00 PM
Before the thread is closed, there are a lot of things they're not making very explicit here. Yay! they have a way to spray photo quantum dots onto a
surface. That's nice.
Each quantum dot is almost 8% efficient at converting the incoming sunlight into energy. Not so good, but ok.
But each dot has a very small area. Even sprayed onto a surface, they're not the area of the surface. And the dots are little hemispheres, so the
collection efficiency is not what it would be for a flat surface either.
They're not telling you that they don't have a way to collect the electrons produced. They just sit there on the surface of the dot. That's why you
don't see a nice pic of a shingle with wires attached running a radio or something.
So there's this whole missing piece that's some sort of collection surface underneath that the dots are sprayed on, and then some sort of clear but
conductive film that has to be stretched over them, only contacting the dot because if it contacts the plate below, it'll short. That part, it's not
there for anyone.
For years, they've been able to make little invisible photo-Schottky diodes by sputtering doped silicon onto metal. It's about as efficient as this.
But they were never able to collect the electrons THERE, either.
Another issue is, the material you spray on begins degrading immediately. Exposure to the elements, that's it. So it's not a product that's ready
to go. What you have is a prof that wants a lot of funding.