Advertisements
Advertisements
Question
What type of semiconductor is obtained when
Ge is doped with In?
Advertisements
Solution
Ge is doped with In
Ge is group 14 and In is group 13. Doping with group 13 (electron deficient) creates p - type semiconductor.
APPEARS IN
RELATED QUESTIONS
A group 14 element is to be converted into n-type semiconductor by doping it with a suitable impurity. To which group should this impurity belong?
What is a semiconductor?
Describe the two main types of semiconductors and contrast their conduction mechanism.
Classify each of the following as being either a p-type or a n-type semiconductor:
- Ge doped with In
- B doped with Si
Solids with conductivities ranging from 104 to 107 ohm-1 m-1 are ____________.
The process by which impurity is introduced in semiconductors to enhance its conductivity is known as ____________.
Which kind of defects are introduced by doping?
Silicon doped with electron-rich impurity forms ______.
Which of the following statements are true about semiconductors?
(i) Silicon doped with electron-rich impurity is a p-type semiconductor.
(ii) Silicon doped with an electron-rich impurity is an n-type semiconductor.
(iii) Delocalised electrons increase the conductivity of doped silicon.
(iv) An electron vacancy increases the conductivity of n-type semiconductor.
Why does the electrical conductivity of semiconductors increase with rise in temperature?
