The concepts of mobility and scattering are basic ingredients of the electrical conduction phenomena in electronic materials and these are discussed in the following sections.
Mobility is the essential property that characterizes the carrier transport. The carrier mobility (μ) also plays a key role in characterizing the transport co-efficient in semiconductor devices. The mobility is defined as the drift velocity (v0) per unit electric field, and can be written as:
where, E0 is the applied electric field.
The force generated on a carrier of charge e due to the ...