The electrical conductivity of a semiconductor:
increases with temperature due to increased mobility of charge carriers
decreases with temperature due to increased mobility of charge carriers
increases with temperature due to increased concentration of charge carriers
decreases with temperature due to decreased concentration of charge carriers
The electrical conductivity of a semiconductor is due to the presence of charge carriers. As the temperature increases, the mobility of the charge carriers increases due to increased thermal energy, leading to an increase in conductivity. However, at very high temperatures, thermal energy can cause some electrons to break free from the atoms, leading to ionization and a decrease in conductivity.