[Wien] Temperature

[Brik Hamida]

Dear

I Explain my point of view :
Using Wien2k code all calculations are done at 0 kelvin . So there is no
thermal energy able to displace an electron from valence to conduction
band.  Conduction bands levels are therefore empty.if for example the
Wien2k-estimated bandgap  is of 2 eV so it is considered as semiconductor
. so is it  logical to speak of energy conduction level  and wien2k
calculates the density of charges /states in conduction band  namely DOS
and we know that at T=0k the  material is insulator so no electron in
conduction band.

my second question :with respect to semiconductor definition,  it is
conductor at ambient temperature so KT=25 meV . do you think that this
energy it sufficent to displace the electron from VB to CB with Eg =2 eV.?


Best regards
Brik
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