Other substrates molecules on Si

So far in this discussion of molecular adsorbates all the examples described have been on metal surfaces. There is no doubt that this reflects the balance of the available 

Clearly the situation of acetylene adsorption on Si(100) is a complex problem, presumably related to the higher potential reactivity and capacity for bonding of the C=C species. Fortunately, the situation for ethylene appears to be more straightforward, and it seems to be the interaction of Si(100) with C=C species that underpins most of the potential applications in creating suitable inorganic/organic electronic interfaces [126]. 

---