Two slices of N-type semiconductor, the emitter and the collector, form a sandwich with a layer of P-type semiconductor, called the base. P- and N-type semiconductors are made with different ...

Still, modern manufacturing is dominated by two basic types of semiconductors: N-type and P-type. Like carbon, silicon has four electrons in its outermost electron shell, so it can form four bonds.

For example, doping silicon with phosphorus ... The Nb-doped 2H-MoTe 2 demonstrated p-type semiconductor behavior, with conductance increasing as doping concentration increased.