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NEETChemistrySolid State

What types of impurities can be used for doping semiconductors?

Options

  1. AOnly electron-rich impurities
  2. BOnly electron-deficient impurities
  3. CBoth electron-rich and electron-deficient impurities
  4. DNo impurities are used for doping

Correct answer

C. Both electron-rich and electron-deficient impurities

Step-by-step solution

Both electron-rich (n-type) and electron-deficient (p-type) impurities can be used for doping semiconductors, depending on the desired type of conductivity.

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