Question 5
ElectronicsA certain manufacturer wishes to make an n-type semi-conductor. Which materials would he select for dopping?
- A.Arsenic and antimony
- B.Aluminium and indium
- C.Boron and antimony
- D.Helium and boron
Show the answer and explanation
Answer: A (Arsenic and antimony)
Explanation
n-type material is made by adding pentavalent (group V) atoms, which give a spare electron. Arsenic and antimony both have five valence electrons.