Minimal parameter implicit solvent model for ab initio electronic-structure calculations J. Dziedzic, H. H. Helal, C.-K. Skylaris, A. A. Mostofi and M. C. Payne EPL, 95 4 (2011) 43001 Published online: 27 July 2011 DOI: 10.1209/0295-5075/95/43001