Classify each of the following as being | Class 12 Chemistry Chapter The Solid State, The Solid State NCERT Solutions

Question:

Classify each of the following as being either a p-type or an n-type semiconductor:

(i) Ge doped with In

(ii) B doped with Si.

Answer:

(i) Ge belongs to group 14 and In belongs to group 13, In has 3 valence electrons while Ge has 4 valence electron. On replacement an electron deficient hole was created, therefore it is a p-type semi- conductor.

(ii) B belongs to group 13 with 3 valence electrons and Si belongs to group 14 with 4 valence electrons. Therefore on replacement there will be a free electron and it is n-type semiconductor.


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Comments

  • Abhi
  • 2020-04-02 16:26:53

Good


  • Abhishek singh
  • 2019-05-11 08:42:11

Good


  • Ruchi Sahu
  • 2019-03-10 12:24:29

Nice


Comment(s) on this Question

Welcome to the NCERT Solutions for Class 12 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 2 , Question 20: Classify each of the following as being either a p-type or an n-type semiconductor: (i) Ge doped ....