Question

e Calculate the position of EF with respect to E. 5. Explain why holes are found wny holes are found near the top of the valence band, whereas conduction electrons are found at the bottom of the conduction band. O. Using the Figure 3-17 in your text (also attached), fill in the following table: Semiconductor 300°K 400°K 500°K Ge GaAs For Ge at 500°K and Si at 400°K, show on the attached graph how you determined the value you put in the table. 7. Based on the data in Figure 3-17, which semiconductor has the largest energy gap? What does this tell you about the relative strength of the bonds between atoms in this semiconductor compared to the other two semiconductors?

Answer 1

When we apply Electric field, the Electrons in the other elise Empty Conduction band (if no field applied) will move in the opposite of the Electric field similarly the created holes in the otherwise filled Valence band Will move in the direction of the field. The holes Energy will decrease. with the increase of the electrons Energy Greverse proportionally, the two carries have opposite charge, they the holes will seek

The lowest Energy state available (top of the valence band). Similarly Electrony in the conduction band will rearrange so that they take the lowest Energy states available (bottom of the conduction band)

According to the guideliness i did 1st full question..