I think it's just when a charge moves to an identical site in the organic semiconductor, i.e. it's a form of charge transport in which the overall properties of the semiconductor do not change because of it. I'm looking for a better definition myself so if you now know of one then please post it here :)

It is a semiconductor.

A semiconductor slice is used to make integrated circuits or ICs. It is also known as a semiconductor wafer or a semiconductor substrate.

ON Semiconductor was created in 1999.

Tungsten is really a semiconductor.