Electronic Devices - Semiconductors - Discussion
Discussion Forum : Semiconductors - General Questions (Q.No. 2)
2.
Single-element semiconductors are characterized by atoms with ____ valence electrons.
Discussion:
24 comments Page 2 of 3.
Vaishnavi said:
1 decade ago
Single element semiconductors means pure semi conductors. Thats why we are considering Ge and Ssi instead of phosprus and boron.
YaminiPriya said:
1 decade ago
Semiconductors also includes elements like phosphorus (penta valent) , boron (tri valent) , but here why we are considering only Si and Ge.
Kanika said:
1 decade ago
The electrons which are present in the outer most shell are called the valence electrons and in case of semiconductors like Si, Ge no of valence electrons are 4.
Prasad said:
1 decade ago
If suppose we taken the intrinsic semiconductor.
Number of holes==number of electrons.
In p-type semiconductor holes are majority charge carriers, it lies nearer to the valency band, so carriers present in the valency band are called valency electrons. In p-type the hybridization is sp3, so number of atoms are 4.
Number of holes==number of electrons.
In p-type semiconductor holes are majority charge carriers, it lies nearer to the valency band, so carriers present in the valency band are called valency electrons. In p-type the hybridization is sp3, so number of atoms are 4.
Mohita said:
1 decade ago
What are single element semiconductors?
Vinod rana said:
1 decade ago
This is not a single. It is silicon element semiconductor.
Niranjan said:
1 decade ago
What does it mean that single element semiconductor ?
N.suresh said:
1 decade ago
Correct answer
Pavan said:
1 decade ago
Kanika there is no solution for this.
Its simply architecture theory like earth revolves around the sun.
Its universal truth.
Its simply architecture theory like earth revolves around the sun.
Its universal truth.
HEMANTH REDDY said:
1 decade ago
Valance electrons means electrons in outer shell --- for a single element semi conductance there will 4 valence electrons as they are 4 group elements.
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