Question

How the donor energy levels of arsenic affects

the semiconductivity of silicon.​

Answer 1

Answer:

Semiconductors are doped to generate either a surplus or a deficiency in valence electrons.Doping allows researchers to exploit the properties of sets of elements, referred to as dopants, in order to modulate the conductivity of a semiconductor.There are two types of dopants, n-type dopants and p-type dopants; n-type dopants act as electron donors, and p-type dopants act as electron acceptors.Combining n-type and p-type semiconductors creates systems which have useful applications in modern electronics.

TermsdopingThe addition of small quantities of an element (an impurity) to a pure semiconductor to change its electrical conductivity characteristics.n-type semiconductorA doped semiconductor in which conduction is due to the movement of additional electrons.p-type semiconductorA doped semiconductor in which conduction is due to the movement of positively-charged holes.Electrical Conduction in Solids

There are two general categories of semiconductors: intrinsic semiconductors, which are composed of only one material, and extrinsic semiconductors, which have had other substances added to them to alter their properties. In semiconductor production, the process of creating extrinsic semiconductors by adding substances to a pure semiconductor for the purposes of modulating its electrical properties is known as doping. Semiconductors are doped to generate either a surplus or a deficiency in valence electrons.