2. Light emission and absorption mechanisms in semiconductors
This section focuses on the generation and recombination of carriers in a semiconductor material.
2.1 Charge density in a semiconductor material
For each type of semiconductor material, extrinsic or intrinsic (i.e., doped or not intentionally doped), in the state of thermodynamic equilibrium, the concentrations of electrons n0(1) and holes p0(2) are defined from the density of states in the valence band Nv and in the conduction band Nc. They also depend on the minimum energy level in the conduction band Ec and the maximum energy level in the valence band Ev, as well...
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Light emission and absorption mechanisms in semiconductors
Photoconductivity of semiconductor materials
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