Question

Which of the following could be used as a donor atom to produce N type semiconductor material?

a)boron
b)aluminium
c)germanium
d) phosphorous​

Answer 1

Phosphorus could be used a donor atom to produce N type semiconductor material. Hence option (d) is correct.

Explanation :

• N-type semiconductor : When a pentavalent impurity is added an intrinsic semiconductor ( silicon or germanium) then it is said to be an N-type semiconductor. Here pentavalent impurities are ; Phosphorus, Antimony, Arsenic etc..
• P-type semiconductor : It is formed adding trivalent impurity to an intrinsic semiconductor. Here trivalent impurities are ; Boron, Gallium, Indium etc..

From above explanation, It is clear that phosphorus could be used a donor atom to produce N-type semiconductor material.

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