Home › NEET UG › Physics › Semiconductor Electronics › Doping silicon or germanium with a pentavalent e…
Doping silicon or germanium with a pentavalent element produces which semiconductor?
AAn r-type
BAn s-type
CAn n-type
DAn m-type
Answer & Solution
Correct answer: C. An n-type
1. A pentavalent atom has one more valence electron than silicon.
2. That spare electron is free to conduct.
3. Doping Si or Ge with a pentavalent element gives an n-type semiconductor.
4. So the answer is n-type.
_Source: NCERT Class XII Physics Part II, Ch 14 'Semiconductor Electronics'_
Related questions
Holes exist as vacant levels created in the:A junction diode is described as a device with how many electrodes?In an n-type semiconductor, the minority carriers are:A material behaves as a metal when the two bands:A material with a band gap below three electron volts is a:A material with a band gap above three electron volts is an:Conductivity of an intrinsic semiconductor depends on its:One acceptor atom gives how many holes?