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14 May 2018

Distinguish between p-type and n-type material




p-type material
n-type material
(i) p-type material is created by introducing impurity elements that have three valence bands.
(i) N-type material is created by introducing impurity elements that have five valance electrons.
(ii) Here, the hole is called the majority carrier.
(ii) Here, the electron is called the majority carrier.
(iii) The electron is called the minority carrier.
(iii) The hole is called the minority carrier.
(iv) In this material, the covered ion is negative.
(iv) In this material, the covered ion is positive.
(v) In p-type material, the current is occurred by the flow of holes.
(v) In n-type material, the current is electrons.
(vi) Example:
Boron, gallium, indium etc.
(vi) Example:
Antimony, arsenic, phosphorus etc.



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