Substrate interacts with molecular attachment

If, for example, alkane thioles or alkane silanes are used, then the thickness of the film is determined by the length of the molecules. With up to 20 CH2 groups, film thicknesses of some nm are obtained. At the ends of the molecules pointing away from the substrate, various end groups can be attached. For example, with aromatic end groups and their mutual tt-tt interactions, the molecular film can be stabilised and sealed off More details can be found e.g. in the review article by Schreiber [20], and in [19]. 

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