Explanation

The superlattice consists of alternating thin layers of t complex with the same materials but different doping types. In fact, there is an intrinsic layer i between the n-type layer and the p-type layer, so it is also called nipi lattice. Its characteristic is that electrons can only gather in the n-type region and holes gather in the P-type region. It is a typical real space indirect band gap semiconductor. The separation of electrons and holes is very thorough, so that the composition life of non-equilibrium carriers is particularly long, and the concentration of electrons and holes is nf adjusted in a large range. doping superlattice have no lattice matching problem and almost no restrictions on raw materials.

Classification