The electronic properties of the uracil-covered Si(001) surface have been studied by density-functional calculations. Dative-bonded configurations are characterized by a high density of surface states in the energy region of the fundamental gap, whereas the surface is perfectly passivated when covalent bonds form between the molecule and the substrate. A remarkable influence of the adsorption configuration on the ionization energy is predicted. The results show that semiconductor surface electronic properties can be tuned within a very wide range by organic functionalization even with only one molecular species.
No takes yet. Share an insight, caveat, or question.
Seino et al. (2004) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: