Building blocks of the conduction and valence band

[BBQBarney]

Hi folks,

I am new to PF. First I have to apologize for the following english -- it is not my native language.

I have problems in understanding the formation of the conduction and valence bands of solids:
For example in III-V compound semiconductors both constituents are sp³ hybridized. If one builds the solid piece by piece the single energetic levels split resulting in bands. My question is, why one says that the conduction band is (most) s-orbit type of the group III element and the valance band p-orbit type of the group V element, like the constituents were not hybridized.
Maybe there is a book or paper covering this topic?

Thanks

 

[BBQBarney]

*push*

 

[granpa]

My question is, why one says that the conduction band is (most) s-orbit type of the group III element and the valance band p-orbit type of the group V element

sounds like a very good question to me. I would like to read more about that. any links?

 

[granpa]

Hi folks,

I am new to PF. First I have to apologize for the following english -- it is not my native language.

I have problems in understanding the formation of the conduction and valence bands of solids:
For example in III-V compound semiconductors both constituents are sp³ hybridized. If one builds the solid piece by piece the single energetic levels split resulting in bands. My question is, why one says that the conduction band is (most) s-orbit type of the group III element and the valance band p-orbit type of the group V element, like the constituents were not hybridized.
Maybe there is a book or paper covering this topic?

Thanks

s orbit=conduction band and p orbit=valence band I could accept but why 'of group III' and 'of the group V'? doesn't make sense to me.