on of x which must exist in the semiconductor. 4 16 The total current in a semiconductor is constant and equal to J--10 A/cm. The total current is composed of a hole drift current and electron diffusion current. Assume that the hole concentration is a constant and equal to 10" cm and assume that the elec- tron concentration is given by n(x) tron diffusion coefficient is D,= 27 cm/s and the hole mobility is a, = 420 cm'/V-s. Calculate (a) the electron diffusion current density for x>0, (b) the hole drift current density for x> 0, and (c) the required electric field for x>0. = 2x 10"e/k cm where L 15 um. The elec-

The contact potential difference of a metal-n type semiconductor Schottky diode is 0.6 Volts. For V = 0 (balance), V = 0.2 Volt (Straight supply), V = 2 Volt (Reverse supply) respectively: a) Calculate the width of the joint area. b) Draw the energy band diagram of the diode for each case. (Show the values you have given and found on the drawing.) (For the semiconductor, donor concentration is 1016 cm-3 and dielectric permeability 1.1x10-10 F/ m take.)

b. The hole mobility in a semiconductor is 300 temperature of 500 K. What is the cm²/(Vs) at a hole diffusion constant at the same temperature of 500 K?

C and D please

Describe the concept of a "smart grid." What are the key technologies and features that make a grid "smart," and how does it improve the efficiency and reliability of power distribution?

A type of extrinsic semiconductor where an impurity atom with a valence of 5 is added as a substitutional impurity. Moreover the extra electron from the impurity atom can be easily removed to become free electron. A. n-type extrinsic semiconductor B. p-type extrinsic semiconductor C. intrinsic semiconductor Other:

Explain what is meant by the intrinsic regime of a doped semiconductor, and whether this behaviour is seen for all temperatures.

Solve it fast fast plz

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When a pentavalent impurity is added to a pure semiconductor, it becomes O a. An insulator O b. p-type semiconductor O c. n-type semiconductor Od. An intrinsic semiconductor ject Jump to...