(Invited) Self-Assembly on Graphene and 2D Materials
Advanced interface specific methods such as scanning tunneling microscopy (STM) and atomic force microscopy (AFM) provide structural and other types of information at the nanoscopic level.
In this presentation, we focus on several aspects of molecular self-assembly at the interface between a liquid or air, and substrates such as highly oriented pyrolytic graphite and graphene. Highly oriented pyrolytic graphite can be considered as an excellent model surface for adsorption and self-assembly of molecules on graphene.
We will discuss the concept of 2D crystal engineering and the effect of solvent, solute concentration and temperature, bringing insight into thermodynamic and kinetics aspects of the self-assembly process at the interface between a liquid and graphite or graphene.1,2
Based on these insights, we will demonstrate molecular self-assembly based functionalization of graphite and graphene.3
Various applications will be presented,4 including tunable doping of graphene based field effect transistors5.
(1) De Feyter, S.; De Schryver, F. C. Chem.Soc.Rev. 2003, 32, 139.
(2) Mali, K. S.; Adisoejoso, J.; Ghijsens, E.; De Cat, I.; De Feyter, S. Acc.Chem.Res. 2012, 45, 1309.
(3) Li, B.; Tahara, K.; Adisoejoso, J.; Vanderlinden, W.; Mali, K. S.; De Gendt, S.; Tobe, Y.; De Feyter, S. ACS Nano 2014, 7, 10764.
(4) Xu, H.; Saletra, W. J.; Iavicoli, P.; Van Averbeke, B.; Schenning, A. P. H. J.; Beljonne, D.; Lazzaroni, R.; Amabilino, D. B.; De Feyter, S. Angew. Chem. Int. Ed. 2012, 51, 11981.