हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Which kind of defects are introduced by doping? - Chemistry

Advertisements
Advertisements

प्रश्न

Which kind of defects are introduced by doping?

विकल्प

  • Dislocation defect

  • Schottky defect

  • Frenkel defects

  • Electronic defects

MCQ
Advertisements

उत्तर

Electronic defects

Explanation:

When electron rich or electron deficient impurity is added to a perfect crystal, it introduces electronic defect in them.

shaalaa.com
Properties of Solids: Electrical Properties - Conduction of Electricity in Semiconductors
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 1: Solid States - Exercises [पृष्ठ ५]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
अध्याय 1 Solid States
Exercises | Q I. 28. | पृष्ठ ५

संबंधित प्रश्न

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?


Non-stoichiometric cuprous oxide, Cu2O can be prepared in laboratory. In this oxide, copper to oxygen ratio is slightly less than 2 : 1. Can you account for the fact that this substance is a p-type semiconductor?


Explain the following with suitable examples:

12-16 group compounds


What type of semiconductor is obtained when 
Ge is doped with In?


 What type of semiconductor is obtained when 
 Si is doped with P? 


Solids with conductivities ranging from 104 to 107 ohm-1 m-1 are ____________.


Semiconductors have conductivity (in ohm-1 m-1) in the range of ____________.


The process by which impurity is introduced in semiconductors to enhance its conductivity is known as ____________.


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 are solids incompressible?


Why does the electrical conductivity of semiconductors increase with rise in temperature?


Assertion: Semiconductors are solids with conductivities in the intermediate range from 10–6 – 104 ohm–1m–1.
Reason: Intermediate conductivity in semiconductor is due to partially filled valence band.


Silicon is a/an ______


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×