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.
Mohita said:
1 decade ago
What are single element semiconductors?
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.
Imran said:
1 decade ago
In EDC, when we discuss about semiconduchetors, we consider Si, Ge only and both are elements of IVth group of periodic table i.e., having 4 valency electrons that is okey but still I am confuse about the amswer becouse here its given "Single-element semiconductors".
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.
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.
Joysly said:
1 decade ago
For silicon and germanium, the outermost electrons are 4.
Surya said:
1 decade ago
Based on electronic configuration. Silicon - 1s2.2s2.2p6.3s2.3p2.
From this no.of valence electrons is 4.
From this no.of valence electrons is 4.
Vivek said:
1 decade ago
Since, silicon and germanium are single element semiconductors, they have an outermost electrons of 4.
Deepak said:
1 decade ago
Semiconductor material which comes in 4th group of periodic table i.e. have 4 free (valance) electron.
Zia said:
10 years ago
There octet is completed.
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