**Semiconductors** ================== .. py:currentmodule:: symplyphysics.condensed_matter.semiconductors **Contents:** .. toctree:: :maxdepth: 4 condensed_matter.semiconductors.concentration_of_intrinsic_charge_carriers condensed_matter.semiconductors.effective_mass_of_electron_via_energy condensed_matter.semiconductors.equilibrium_voltage_difference_in_pn_junction_via_concentrations