What is the unit of Hall coefficient?
The two most widely used units for the Hall coefficients are SI units, m3/A-sec = m3/C, and the hybrid unit Ohm-cm/G (which combines the practical quantities volt and amp with the cgs quantities centimeter and Gauss).
How do you calculate Hall effect?
Hall Voltage for Positive Charge Carriers The transverse voltage (Hall effect) measured in a Hall probe has its origin in the magnetic force on a moving charge carrier. The magnetic force is Fm = evdB where vd is the drift velocity of the charge.
How do you determine carrier mobility?
Carrier mobility is typically defined as μ ≡ ν/E = σ/en, where ν is the Drude carrier drift velocity, E is applied electrical field, assumed to be small, σ is conductivity, n is carrier density.
What is meant by carrier mobility?
Carrier Mobility (μn,p) is the measure of ease of charge carrier drift. That is, a measure of how quickly a charge carrier can move through a material. For example, how quickly an electron can travel through a semiconductor.
What is the formula for mobility?
Mobility μ is defined as the magnitude of drift velocity per unit electric field. μ=E∣vd∣.
What is carrier transport in semiconductors?
Any motion of free carriers in a semiconductor leads to a current. This motion can be caused by an electric field due to an externally applied voltage, since the carriers are charged particles. This carrier transport mechanism is due to the thermal energy and the associated random motion of the carriers.
What are the two types of charge carrier transport in a semiconductor that provide current?
The more abundant charge carriers are called majority carriers, which are primarily responsible for current transport in a piece of semiconductor. In n-type semiconductors they are electrons, while in p-type semiconductors they are holes.
What substances do carrier proteins transport?
Carrier proteins are responsible for the diffusion of sugars, amino acids, and nucleosides. They are also the proteins that take up glucose molecules and transport them and other molecules (e.g. salts, amino acids, etc.) inside the cell.
What is DN and DP?
Dn ≡ electron diffusion coefficient [cm. 2. /s] Dp ≡ hole diffusion coefficient [cm. 2.