Computer simulations of self-assembled monolayers

Self-assembled monolayers of organic molecules on solid substrates build we ll-defined surfaces, which can be structured efficiently on a nanometre sca le. The molecular order of the molecules, in particular their tilt with res pect to the surface, is believed to be important for the stability of those patterns. We discuss Monte Carlo simulations of a simple, idealized model for self-assembled monolayers, with particular emphasis on the different ty pes of tilt order and tilting transitions.