Charge Carriers in Semiconductors

Semiconductors have only one type of charge carrier, either electrons or holes

The electronic density of states is a measure of the energy levels available to a carrier

The effective density of states function in the valence band (Nν) is given by the equation $N_{\nu} = 2\left(\frac{2\pi m_{p}^{*}kT},{h^2}\right)^{3/2}$

The thermal equilibrium concentration of holes in the valence band is given by the equation $P_{o} = N_{\nu} \exp\left(\frac{E_{F}-E_{\nu}},{kT}\right)$

The magnitude of Nν is also on the order of $10^{19} cm^{-3}$ at $T=300K$ for most semiconductors

Semiconductors can have two types of charge carriers, the electron and the ______

The parameter $m_{p}^{*}$ in the equation for the effective density of states function in the valence band represents the density of states effective mass of the ______

The electronic density of states function is defined as the number of states per unit volume per unit energy, or the concentration of states per unit energy. Therefore, the following quantity gives the concentration of states in a differential energy segment from (E) to (E + dE), the ______

The thermal equilibrium concentration of holes in the valence band is given by the equation $P_{o} = N_{\nu} \exp\left(\frac{E_{F}-E_{\nu}},{kT}\right)$. In this equation, $P_{o}$ represents the thermal-equilibrium ______ concentration

The magnitude of Nν is also on the order of $10^{19} cm^{-3}$ at $T=300K$ for most ______