Energy level of sub-band

[itsvikassh]

I want to calculate the capacitance of device.

For this, i need to find the difference between the energy levels of sub-bands and conductance and valence bands...

but i can not understand how to calculate the energy level of sub-bands?

please help..

[kstokbro]

check the tutorials:
http://www.quantumwise.com/publications/tutorials/mini-tutorials/203

Maybe also:
http://www.quantumwise.com/documents/tutorials/latest/BenzeneSET/index.html/

Calculation of mpsh states might also be relevant:
http://www.quantumwise.com/documents/tutorials/latest/MolecularDevice/index.html/chap.analysis.html#sect1.analysis.mpsh

[itsvikassh]

thanks a lot..