In this case, as the P-type and N-type materials, any material generally preferably used for thermoelectric pairs can be used.
在这种情况下，作为P型和N型材料，可以使用通常优选地用于热电偶的任何材料。
2
At the junction where the two layers meet, electrons pair up with holes, establishing an electric field that prevents electrons from moving from the n-typematerial to the p-type.
两层接触处电子与“孔”便成双配对地形成了电场，阻止电子从n层移到的p层。
3
The smallest unit that supports electron flow in a semiconductor material ; a hole in P-type silicon or a free electron in N-type silicon.