Question

In a pure or intrinsic semiconductor, valence band holes and conduction-band electrons are always ______.

विकल्प

• such that number of holes is greater than the number of electrons

• in equal numbers

• zero

• such that number of electrons is greater than the number of holes

Answer 1

In a pure or intrinsic semiconductor, valence band holes and conduction-band electrons are always in equal numbers.

Explanation:

An intrinsic semiconductor, also known as an undoped semiconductor, is a semiconductor that is completely free of dopant species. The number of excited electrons and holes in intrinsic semiconductors is equal, n_e = n_h.