Getting excited can kick a person’s energy to a higher level. At the nanoscale, strange almost-particles called excitons do the same trick.
In a crystal, thin film or even some liquids, an incoming particle of light can slam into an electron, bumping it to a higher energy level and leaving a hole at the energy level where the particle had been. The exciton is the excited electron paired with the resulting hole and can move energy in two ways: by physically hopping to a new molecule or transferring energy almost like an antenna transmitting a signal. Either way, the movement is quick, with the longest-lasting exciton existing for just a few milliseconds.
Even though excitons don’t last long, scientists were recently able to make images of how the quasiparticles moved (SN Online: 4/16/14). Investigating excitons’ ability to kick around nanoscale energy could improve scientists’ understanding of photosynthesis and lead to better solar cells, LEDs and semiconductor circuits. (1)
Naming a hole as A.
Naming a particle as B.
Naming the combination of A and B as C…
Discovering what we want…
Seeing what we wish…
Why not pair the whole world with all of us and discover… Parmenides?!? (what?!?)
