Advertisements
Advertisements
प्रश्न
To get a n-type semiconductor from silicon, it should be doped with a substance with valence ______.
विकल्प
2
1
3
5
उत्तर
To get a n-type semiconductor from silicon, it should be doped with a substance with valence 5.
Explanation:
Impurity of higher group is doped to get n-type semiconductor. Thus, silicon (valency = 4) should be doped with the element with valency equal to 5.
APPEARS IN
संबंधित प्रश्न
In a semiconductor, acceptor impurity is.................................
- antimony
- indium
- phosphorous
- arsenic
When a hole is produced in P-type semiconductor, there is _______.
What is the ratio of octahedral holes to the number of anions in hexagonal closed packed structure?
Group 14 element is converted to p-type semiconductor by doping it with:
In n-type semiconductor, current is carried by ____________.
p-type semiconductors are formed when Si or Ge are doped with ____________.
Under the influence of electric field, which of the following statements is true about the movement of electrons and holes in a p-type semiconductor?
(i) Electron will move towards the positvely charged plate through electron holes.
(ii) Holes will appear to be moving towards the negatively charged plate.
(iii) Both electrons and holes appear to move towards the positively charged plate.
(iv) Movement of electrons is not related to the movement of holes.
A perfect crystal of silicon (Figure) is doped with some elements as given in the options. Which of these options show n-type semiconductors?
Explain why does conductivity of germanium crystals increase on doping with galium.
How does the doping increase the conductivity of semiconductors?
