Semiconductor Materials: Types and Applications
12 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What distinguishes semiconductor compounds from metals and insulators?

  • Energy band gap (Eg) (correct)
  • Type of atoms present
  • Conductivity
  • Crystal structure

    • Which type of compound semiconductors are commonly used in light-emitting diodes (LEDs)?

  • IV-VI compounds like PbTe
  • II-VI compounds like ZnS
  • III-V compounds like GaN, GaP, and GaAs (correct)
  • Elemental semiconductors like Ge and Si

    • What determines the wavelengths of light that can be absorbed or emitted by a semiconductor compound?

  • Number of free electrons
  • Energy band gap (Eg) (correct)
  • Conductivity type
  • Crystal lattice structure

    • What is the lattice structure called when both fcc sites in a diamond lattice have the same type of atoms?

    <p>Diamond structure (A)</p> Signup and view all the answers

    Which compound semiconductors are usually used in television screens as fluorescent materials?

    <p>II-VI compounds like ZnS (B)</p> Signup and view all the answers

    What is the lattice structure called when each fcc site in the diamond lattice has different types of atom?

    <p>Zincblend structure (B)</p> Signup and view all the answers

    What is required to obtain highly pure semiconductor for electronic applications like Si?

    <p>High temperature arc furnace (D)</p> Signup and view all the answers

    What kind of compounds can be obtained by varying the mixture of elements on each fcc site of the zinc blend structure?

    <p>Ternary compounds (B)</p> Signup and view all the answers

    What type of lattice has an additional atom at the center of the cube?

    <p>Body-centered cubic lattice (C)</p> Signup and view all the answers

    For which crystal structure is there an atom located at each corner of the unit cell?

    <p>Simple cubic structure (sc) (C)</p> Signup and view all the answers

    Which crystal system allows lattice points at the face center?

    <p>Cubic (B)</p> Signup and view all the answers

    What are Miller indices used to refer to in crystal studying?

    <p>Plane and direction in crystals (A)</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser