7. The resistivity of intrinsic Si is 2.3 x 10.m at 300 K. Calculate its resistivity at 100°C. Assume E, = 1 eV and k = 1.38 x 10-23 J/K. 8. The electrical conductivity of Ge at 20°C is 2 (N . m)-. What is its conductivity at 40°C? Bandgap of Ge is 0.72 ev. %3D 9. Assuming that the number of electrons near the top of the valence band available for thermal excitation is 5 x 1025 / m³ and the intrinsic carrier density is 2.5 x 1019 / m³, calculate the energy gap of germanium at room temperature.
7. The resistivity of intrinsic Si is 2.3 x 10.m at 300 K. Calculate its resistivity at 100°C. Assume E, = 1 eV and k = 1.38 x 10-23 J/K. 8. The electrical conductivity of Ge at 20°C is 2 (N . m)-. What is its conductivity at 40°C? Bandgap of Ge is 0.72 ev. %3D 9. Assuming that the number of electrons near the top of the valence band available for thermal excitation is 5 x 1025 / m³ and the intrinsic carrier density is 2.5 x 1019 / m³, calculate the energy gap of germanium at room temperature.
Related questions
Question
Transcribed Image Text:7. The resistivity of intrinsic Si is 2.3 x 10 . m at 300 K. Calculate its
resistivity at 100°C. Assume E, =1 eV and k = 1.38 x 10-23 J/K.
8. The electrical conductivity of Ge at 20°C is 2 (N. m)1. What is its
conductivity at 40°C? Bandgap of Ge is 0.72 ev.
%3D
9. Assuming that the number of electrons near the top of the valence band
available for thermal excitation is 5 x 1025 / m³ and the intrinsic carrier
density is 2.5 x 1019 / m?, calculate the energy gap of germanium at room
temperature.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
