This all sounds amazing, but fragile. Digital camera sensors have been shipped rather than flown at altitude across parts of Europe. Cosmic particles in these zones can knock out pixels of the sensor causing dead or hot pixels. Imagine if your nano processor took a direct hit. It wouldn't knock out a few molecules of a transistor, it would kill it.
I like where this research is going. If you get down to the molecular level, then you can use photons to set the state of circuit latches. After that it is just a matter of replicating a circuit and an interface to capture the I/O from the device. The thermal efficiency of this approach would be phenomenal.