- #1
TriKri
- 72
- 0
If you know how a single electron transistor works, can you please explain to me what the tunneling junctions are necessary for? I mean, if we would remove the two tunneling junctions and connect the drain, the source and the island into one long wire, wouldn't still it be possible to create a potential barrier by applying a negative gate voltage, thus preventing the current from going through, and in that way be able to switch on and off the current? Or what is the purpose of the tunneling junctions, really?