An external circuit provides a path for the electrons to return to the p-typematerial, producing an electric current along the way that continues as long as light strikes the solar cell.
此时接上一条外线电路，电子便通过线路流动到p层。只要光束持续地撞击太阳能电池，就会有持续的电流。
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
In order to meet the demand of the smart, high energy density and long lifetime for the burst blow ignition fuse, a type of piezoceramics power supply made of P-5A4 material is designed.