Solar panel manufacturers - Majority carrier diffusion solar photovoltaic (pv)

Majority carrier diffusion movement if the p-type and n-type semiconductor both together, become an organic whole repeatedly, conductive type instead of the transition area between the two pieces of semi conductor, called P - N junction. In on both sides of the p-n junction, P zone, many holes, electronic less; In

the spread of the majority carrier movement if the p-type and n-type semiconductor semiconductor closely integrated to form a whole, the two opposite the transition between conductive type of semiconductor is called P - N junction. On both sides of the p-n junction, there are many empty hole in the P. Almost no electronic

. In the N region, however, there are many electronic, rarely an empty hole. Therefore, in the interface between the p-type and n-type semiconductor, on both sides of the electrons and the concentration of the empty hole are not equal, resulting in the spread of the majority carrier movement. In P area near the interface, and empty hole will be from a high concentration of P area spreads to the low concentration of N area, and with the electronic composite there, thus appears to carry throughout the region.

with human body impurities of positively charged ions; In P parts, at the same time, due to a set of empty hole, doped with a group of human impurity has fled the negatively charged ions. N area near the interface, the electronic from high concentrations of N area spreads to the low concentration of P area, and there with empty hole compound, to produce a batch of mixed with human negative ion impurities. At the same time, in the N region, due to a number of electronic escape, doped with positively charged human impurity ions. As a result of diffusion, near N very thin layer of the positive charge on the side or the other side of the area near the P on the negative layer formed on both sides of the interface, this is called the empty area between charge ( Also known as the depletion region) And this is P - N junction. In the P - N junction, the positive and negative charges on both sides of the accumulation, will produce from backward area of N to P of the electric field, which is referred to as a built-in electric field ( Or barrier electric field) 。 For more information, please continue to pay attention to sun yat-sen solar panel manufacturers - — Guangdong energy technology co. , LTD. Relevant tags: makers of solar panels, solar panels, high efficiency solar panels, guangdong energy technology co. , LTD