Characteristics of N-type semiconductors
There are two types of carriers in semiconductors, namely holes in the valence band and electrons in the conduction band. Semiconductors based on electron conduction are called N-type semiconductors. In contrast, semiconductors based on hole conduction Called P-type semiconductor. "N" means negative electricity, taken from the first letter of English Negative. In this type of semiconductor,
Participating in conduction (ie conductive carrier) is mainly negatively charged electrons, these electrons come from the donor in the semiconductor. All semiconductors doped with donor impurities or more donors than acceptors are N-type semiconductors.