https://doi.org/10.1351/goldbook.08777
Purely random, thermally induced motion of charge carriers.
Note:
According to the type of charge carriers undergoing diffusion, it is subdivided into electron diffusion, hole diffusion, polaron diffusion, soliton diffusion, etc.
According to the type of charge carriers undergoing diffusion, it is subdivided into electron diffusion, hole diffusion, polaron diffusion, soliton diffusion, etc.
See also: electric drift