Semiconductor Materials – 115

115. The impurity atoms in semiconductors :

(a) Inject more charge carriers
(b) Reduce the energy gap
(c) Increase the kinetic energy of valence electrons
(d) All of the above

Answer

Answer : (b)

Explanation

Explanation : No answer description available for this question. Let us discuss.

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Semiconductor Materials - 128
Semiconductor Materials » Exercise - 3128. A trivalent impurity has ........ valence electrons. (a) 4 (b) 5 (c) 6 (d) 3
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Atoms and Electrons » Exercise - 285. The forbidden energy band gap in conductors, semiconductor and insulators are EG1, EG2 and EG3 respectively then - (a) EG1> EG2>EG3 (b) EG1< EG2< EG3 (c) EG1> EG2 = EG3 (d) EG1 = EG2 = EG3
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Atoms and Electrons » Exercise - 290. Width for forbidden gap is maximum for : (a) Metals (b) Semiconductor (c) Insulators (d) All of them
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