Which one of these is more appropriate for academic email I have a membership from an organization e.g. ieee.org and I have some options for my email ID which I want to use in academy and professional work. I'm not a native English and I'm not familiar with the culture involved. I have these three options:

(consider my name as Serim Doe, which Serim is my first name and pretty rare, I didn't want make example of John Doe which is very common name). 

Serim@ieee.org 

Doe@ieee.org

S.Doe@ieee.org

I personally prefer Serim@ieee.org since it is more concise and shorter, but I want to know if making ID of only the first name is appropriate or not.
In the US, everthing said in the comments applies (in short: everything goes, it's up to you).

In Europe (and especially in German speaking countries), it is very unsusual to call other people by ther first name, therefore serim@ would be considered inappropriate and people might be confused and think of it as your last name. 

Therefore, if you think international, I'd propose s.doe@... or, serim.doe@... . Most companies and universities in Germany use the last version since it helps in avoiding name collisions (of course it's no guarantee).