To convert the Si crystal into a P. type semi-conductor, which group element be doped?
Correct answer: A. Trivalent element
- A. Trivalent element
- B. Four group element
- C. Second group element
- D. Pentavalent element
Explanation
When a few atoms of trivalent dopant replace silicon atoms in the lattice, a vacant state (or electron "hole") is created and can act as an electron carrier through the structure, which creates a p-type semiconductor.
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About Physics of Solids
Solids are compared through crystal structure, amorphous arrangement, elasticity, plastic deformation, stress, strain and Young’s modulus. Electrical behavior depends on available charge carriers and band structure, so conductors, insulators and semiconductors must be distinguished from mechanical properties such as strength, stiffness and brittleness.
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