Tuning the Work Function of Graphene-on-Quartz with a High Weight Molecular Acceptor Graphene Times, 26 Feb 2014 C. Christodoulou, A. Giannakopoulos, M. V. Nardi, G. Ligorio, M. Oehzelt, L. Chen, L. Pasquali, M. Timpel, A. Giglia, S.