Calculate effective density of states at the valence band

Assignment Help Electrical Engineering
Reference no: EM13266955

Calculate the effective density of states at the valence band and conduction band edge of intrinsic silicon at 300K and at 600K. Assuming that the energy gap does not change with temperature, calculate the intrinsic electron concentration at the two temperatures. Look up the data for silicon that you need. Give your answer in carriers per cm cubed.

Reference no: EM13266955

Questions Cloud

Explain the are often sodium slats of long chain fatty acids : They have a polar end b. The have a hydrophobic end c. The are often sodium slats of long chain fatty acids. d. The hydrophilic end of the soap molecules is attracted by grease. e. they precipitate in water that contains Fe3+ ions
How to calculate relative energy levels to get partial point : Make a sketch of the band diagram for an n-type semiconductor and a p-type semiconductor doped with phosphorus and boron at 5*10^15/cm^3 respectively. Label all the features of your drawing, as well as the relative energy
Calculate the momentum of a photon : Calculate the momentum of a photon having a wavelength of 53.0 nm and Find the velocity of an electron having the same momentum
Explain the term symbols for the following free atoms : Determine all of the term symbols for the following free atoms. Choose the ground state term in each case B N Mg V As Lu
Calculate effective density of states at the valence band : Assuming that the energy gap does not change with temperature, calculate the intrinsic electron concentration at the two temperatures. Look up the data for silicon that you need. Give your answer in carriers per cm cubed.
Explain the formulas for ethane and ethene and ethyne : The formulas for ethane, ethene and ethyne are C2H6, C2H4, and C2H2 respectively. Rank these compounds by the length of the carbon-carbon bond.
Determine what is the majority carrier type : A silicon sample is 2.5 mm in length, 1.2 mm in width and 0.7 mm high. It has been doped with Boron with a doping density of 8.5 x 1016 cm-3. Assume the temperature is 300°K.
Obtain the constant angular acceleration of the centrifuge : A centrifuge in a medical laboratory rotates at an angular speed of 3500 rev/min. When switched off, obtain the constant angular acceleration of the centrifuge
What do you think georgios korres should do to secure : What do you think Georgios Korres should do to secure the capital he needs to grow Korres Natural Products?

Reviews

Write a Review

Electrical Engineering Questions & Answers

  How much power is dissipated at the load

A 75  lossless line is terminated in error with a 93 resistor. A generator sends 100 mW down the line. (a) What is the SWR on the line (b) What is the reflection coefficient

  Calculate the reflection coeficient at the load and the swr

A lossless transmission line with the electrical length of l = 0.3 lamda and the characteristics impedance of Z0 = 75 is terminated with a complex load ZL = 30 -j20  calculate the reflection coeficient at the load, the SWR on the line

  What is the temperture when the output voltage

An intergrated circuit temperature probe is rated at 0-10 volts dc over a 0-175 degrees Celsius range. What is the temperture when the output voltage is 3.65 volts dc

  Define multiplexer with an active low enable

(c) Use a single 4-to-1 multiplexer with an active low enable and an active high output and a minimum of additional gates. Show the function expansion both algebraically and on a Karnaugh map.

  Determine what is the channel bandwidth

A binary waveform of 53000 bits/sec is converted into an 8192 level waveform that is passed through a channel with a raised cosine-rolloff filter characteristic with r = 0.33. The channel bandwidth is what

  What is the equilibrium hole concentration

A Si sample is doped with 10^17 As atoms/cm^3. What is the equilibrium hole concentration P0 at T=300K?

  What is the indicated temperature at the times

A temperature sensor has a static transfer function of 0.15 mV/C° and a time constant of 3.3 s. If a step change of 22° to 50° C is applied at t=0, find the output voltage at 0.5 s from t=0s to t=10s. What is the indicated temperature at these tim..

  Find the volume of a frustum of a pyramid with square base

1. Find the volume of a frustum of a pyramid with square base of side 17, square top of side 9 and height 14.2. The base of a solid is a circular disk with radius3. Parallel cross sections perpendicular to the base are squares.

  What is probability exactly 1 of vehicles requires warranty

Industry standards suggest that 10% of new vehicles require warranty service within the 1st year. Jackson Chevy in Detroit, MI, sold 12 cars yesterday. a. What is the probability that none of these cars requires warranty service

  Determine the image frequency and the local oscillator

1-for an FM reciever tuned to 94.5 MHZ using high side-injection and a first IF of 10.7 MHZ, Determine the image frequency and the local oscillator

  Design a circuit to control a network of switches

A circuit is required in order to control a network of switches. The circuit has four inputs: three of the switches are normal on/off switches while the fourth switch is an enable switch for the entire circuit. The circuit should have the followin..

  Calculate power radiated by the antenna

A half wave dipole antenna is operating in air at a frequency of 100 MHz. At a distance of 1000 km and at an observation point ? = ?/2, electric field strength is measured to be 5 µV/m. Calculate the  a. Length of the antenna

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd