Solve this plzzz.. Q. Suppose a pure Si crystal has 5 × 1028 atoms m–3. It is doped by 1 ppm concentration of pentavalent As. Calculate the number of electrons and hole. (Given that ni = 1.5 × 1016 m–3.)

Dear student,
Here numbers of electron( n e) =$\frac{5×{10}^{28}}{{10}^{6}}=5×10$22   m -3
We know

Regards

• 1
What are you looking for?