Dos interpretation help!!!

[Khattab]

Dear All,
Now i calculate I-V curve of some two probe systems, but i couldn't know the difference between different curves, so i calculate Dos but i want to interpret its curves, could any one help me to know what is Dos  ???and how can i us it to interprete different I-V curves
Thanks in Advance ,
El-Sayed Khattab 

[zh]

This kind of question is usually ignored. Before going to the exact questions you have met, I would like to ask you why you do these calculations and what is the purpose of your calculations.  Indeed, the details of your question haven't been shown up. No answer can be provided.  The suggestion is that you may dig into  some literature, which contains the similar calculations to yours, read them carefully and  see how other people interpret their results.

[Khattab]

Dear Zh,
Thank you very much for your answer , I want to study electron transport through some organic molecules, the objective of my question is to guide me to some papers help me to understand what is DOS and how to interprete its curves.
Thank you again,
El-Sayed Khattab     

[Anders Blom]

http://quantumwise.com/documents/ATK_Publication_List.html

[Khattab]

Dear Dr Anders Blom,
Thank you very much for answer .
Regards,
El-Sayed Khattab