"Breakthrough" seems to be a popular word this week. Just a few days after sCMOS sensor breakthrough, Science Daily and few other sources report that a team of University of Toronto scientists created multi-exciton generation (MEG) light sensor. Until now, no group had collected an electrical current from a device that takes advantage of MEG.
"...the image sensor chips inside cameras collect, at most, one electron's worth of current for every photon (particle of light) that strikes the pixel," says Ted Sargent, professor in University of Toronto's Department of Electrical and Computer Engineering. "Instead generating multiple excitons per photon could ultimately lead to better low-light pictures."
This sounds really interesting. Unfortunately, there is not much details in this PR to judge the feasibility of this approach for the real sensors.
Update: The original article is here. It appears to be quite a far away from anything practical for the mainstream sensors.