engineering recuitment ISRO Scientist Electronics Mock Test Electronic Devices Carriers in Semiconductors Position of Fermi Energy Level
For a particular material, NC = 1.5 × 1018 cm-3, NV = 1.3 × 1019 cm-3 and bandgap EG = 1.43 eV at T = 300°K. The Thermal voltage at 300 K is obtained as 26 mV.
What is the position of the intrinsic Fermi level with respect to the top of the valence band EV?1
0.028 eV above the valence band edge EV
2
0.743 eV below the valence band edge EV
3
0.028 eV below the valence band edge EV
4
0.743 eV above the valence band edge EV