3 A pure Si crystal has 5 1022 atoms m It is doped by 1 ppm

Last updated: 6/7/2023

3 A pure Si crystal has 5 1022 atoms m It is doped by 1 ppm concentration of pentavalent impurity The number of holes is n nn Take n 1 5 x 10 6 m a 4 5 x 10 m c 2 5 x 109 m b 4 5 x 106 m 3 d 2 5 x 106 m 3 d hel