Doped fullerenes distributions

The extension of the above described model from neutral doped single-walled fullerenes A Cn to charged doped fullerenes A C Z is pretty straightforward [28]. To account for the effects of a charged shell Cfz, one reasonably assumes that the extra charge z is evenly distributed over the entire outer surface of C . Correspondingly, the entire model potential Vn(r) in the case of charged C z is... 

---