No. It's just another piece of the puzzle (Score 1)

Titanium Dioxide Dye solar cells have been around for a while now. What is limiting them is the 'speed' at which and electrons are donated from the dye to the conduction band of the titanium dioxide semi-conductor and the re-filling of the electron hole after it's traveled through your circuit or the grid (if that's the case). There are two ways to improve the 'speed'; the first being to use nanotubes of TiO2 which constrains the electrons to specific quantum levels (band states) in the semi-conductor. Then there is less of a chance that the electron will in-advertently run into hole as it migrates out of the solar cell. By the way, it doesn't have to be TiO2 either, but any broad-band semi-conductor. The second way is to improve the dye so it can donate more electrons when a photon hit it. It sounds like this is what these people have done.

Here is site the tells how to make your own TiO2 solar cell using raspberry juice as the dye.

http://mrsec.wisc.edu/Edetc/nanolab/TiO2/