« on: June 02, 2013, 08:09:27 AM »
Sounds fishy to me. The current sensors have about 50% QE. This means that one can only increase it twice, not 1,000 times.
In principle, "sensitivity" is not a well defined term when it comes to digital sensors. They are photon counting machines, missing every other photon, roughly speaking.
Yes, your thinking mirrors mine. Perhaps its a deeper electron well that holds more photons, but that implies a longer exposure. The description of "Wang said the key to his new sensor is the use of "light-trapping" nanostructures that use graphene as a base. The nanostructures hold onto light-generated electron particles for much longer than conventional sensors." is a bit vague and does not explain the predicted usefulness for consumer imaging.
Imagine that the electron well actually has holes in it and that not all of the electrons that you capture stay in there - some get out or some get absorbed by the well.. Giving the well better walls/floor will help prevent that and thus result in a more consistent image being presented.