Question

You have two undoped semiconductors. Semiconductor 1 has a bandgap of 1.5 eV. Semiconductor 2 has...

You have two undoped semiconductors. Semiconductor 1 has a bandgap of 1.5 eV. Semiconductor 2 has a bandgap of 2 eV. If the values of B are equal and the temperature is 600 K, what is the ratio of the number holes in Semiconductor 1 to the number of (a) electrons in Semiconductor 1 and (b) holes in Semiconductor 2

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The occupancy probability function can be applied to semiconductors as well as to metals. In semiconductors...
The occupancy probability function can be applied to semiconductors as well as to metals. In semiconductors the Fermi energy is close to the midpoint of the gap between the valence band and the conduction band. Consider a semiconductor with an energy gap of 0.66 eV at T 310 K. What is the probability that (a) a state at the bottom of the conduction band is occupied and (b) a state at the top of the valence band is not occupied?...
1. ______________ bandgap semiconductors such as Si are inefficient for photon generation (e.g., in diode lasers...
1. ______________ bandgap semiconductors such as Si are inefficient for photon generation (e.g., in diode lasers and LEDs) since their conduction and valence bands are not lined up at the same momentum (E vs. k) 2. Devices (such as lasers) often use structures based on layers of semiconductors with different bandgap energies. What is the term used to describe devices based on different bandgap materials? __________________ 3. A bond commonly formed in semiconductors where adjacent atoms share two electrons is...
The occupancy probability function can be applied to semiconductors as well as to metals. In semiconductors...
The occupancy probability function can be applied to semiconductors as well as to metals. In semiconductors the Fermi energy is close to the midpoint of the gap between the valence band and the conduction band. Consider a semiconductor with an energy gap of 0.88 eV, at T = 320 K. What is the probability that (a) a state at the bottom of the conduction band is occupied and (b) a state at the top of the valence band is not...
GaP is a semiconductor useful in the electronics industry. It has an indirect bandgap of 2.24...
GaP is a semiconductor useful in the electronics industry. It has an indirect bandgap of 2.24 eV at room temperature. Propose a synthesis for GaP starting from calcium phosphate, Ca3(PO4)2. You can use any non-phosphorous containing reagents throughout your synthesis. Ensure that all reactions are balanced. Explain which form of phosphorus, red or white, would be combined with Ga and how it would be synthesized.  
When you add a controlled amount of substance known as an impurity to a pure semiconductor,...
When you add a controlled amount of substance known as an impurity to a pure semiconductor, its conductivity increases. This process is known as doping. The addition of an impurity can increase or decrease the number of available electrons. If the number of electrons is increased, the extra electrons conduct electricity. If the number of electrons is decreased, a vacant hole is created. The adjacent electron enters the vacant hole and conducts electricity. Thus, it seems like the holes act...
Choose the correct answer: 1) At Zero degree Kelvin the Intrinsic Semiconductor has _______. a) Only...
Choose the correct answer: 1) At Zero degree Kelvin the Intrinsic Semiconductor has _______. a) Only Free Electrons. b) Only Free Holes. c) Both (a) and (b). d) No Free Carries. ------------- 2) At Zero degree Kelvin the Extrinsic Semiconductor has _______. a) Only Free Electrons. b) Only Free Holes. c) Both (a) and (b). d) No Free Carries. ------------- 3) Electrons or Holes can exist within the _______. a) Conduction band. b) Valence band. c) Forbidden band. d) Both...
True or False Then provide a brief justification for your answer . 1 Indirect semiconductors are...
True or False Then provide a brief justification for your answer . 1 Indirect semiconductors are best suited for optoelectronic applications (LED, lasers). True or False and Reason : 2 Silicon has four electrons in the outer shell . True or False and Reason : 3 There is strong electric field in the neutral region of a p-n diode . True or False and Reason : 4 Conductivity of n-doped semiconductors decreases at very low temperatures due to low impurity...
1. In a H2 molecule there are two protons, and these have spin 1/2 ħ, that...
1. In a H2 molecule there are two protons, and these have spin 1/2 ħ, that is, they are fermions. If we just look at the two protons, would you expect their spins to be parallel or anti parallel in the ground state of the H2 molecule? 2. Is there a type of viscosity that acts on holes in a semiconductor and gives them a terminal velocity in an electric field, or do holes just accelerate under the influence of...
1. Compute the resistivity of an intrinsic semiconductor at 300 K, in units of Ω-m, given...
1. Compute the resistivity of an intrinsic semiconductor at 300 K, in units of Ω-m, given that it has an intrinsic carrier concentration of 4.9 x1022m-3 and electron and hole mobilities of 0.53 and 0.09 m2/V-s, respectively. 2. The intrinsic concentration of electrons and holes (i.e. concentration of e-h pairs) in Si at room temperature is approximately 1x1010 cm-3. Given the density and atomic mass of Si to be 2.33 g/cm3 and 28.06 g/mol, determine the ratio of ionized to...
1. The shorter the wavelength of a photon, the more the photon behaves like a particle....
1. The shorter the wavelength of a photon, the more the photon behaves like a particle. Why? 2. In a H2 molecule there are two protons, and these have spin 1/2 ħ, that is, they are fermions. If we just look at the two protons, would you expect their spins to be parallel or anti parallel in the ground state of the H2 molecule? 3. Is there a type of viscosity that acts on holes in a semiconductor and gives...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT
Active Questions
  • Statistics Discussion: The accuracy of a forecasting technique is evaluated especially using the MSE (mean squared...
    asked 1 minute ago
  • If the U.S. government manages to close a recessionary gap and achieve potential GDP with fiscal...
    asked 6 minutes ago
  • A block with mass 10kg is on a ramp angled at 20 degrees above the horizontal,...
    asked 6 minutes ago
  • I have a sample of 31 7thgrade girls who took an IQ test.  I calculated the sample...
    asked 13 minutes ago
  • A researcher wishes to estimate the proportion of adults who have​ high-speed Internet access. What size...
    asked 13 minutes ago
  • Brick column in the external corridor of a house, with section size of 440 mm X520...
    asked 14 minutes ago
  • 17.                             Mel has a(n) __________ lien on Ellen’s car after he replaced her clutch. The lien.
    asked 21 minutes ago
  • Jackson Company engaged in the following investment transactions during the current year. Feb 17,Purchased  430 shares of...
    asked 32 minutes ago
  • When might discrimination in the workplace be justified? Might discrimination on the basis of gender or...
    asked 44 minutes ago
  • The strength grade of materials used for brick masonry at a certain site is as follows:...
    asked 58 minutes ago
  • Show (prove), from the original definition of the integers, that subtraction of integers is well defined....
    asked 1 hour ago
  • How is polarity of a "bond" different than polarity of a "molecule?" What makes a particular...
    asked 1 hour ago