Abstract
Self-assembly of C60 molecules on planar n- or p-type Si(100) has been accomplished by direct tethering onto the Si surface without using any intermediate functional hydrocarbon chain. Photoresponse has been observed on these monolayer modified electrodes in both aqueous and nonaqueous media. The p-type Si(100) surface with a bound C60 monolayer is also capable of mediating redox reactions. These C60 monolayer modified Si electrodes are very stable in both acidic aqueous and polar nonaqueous solvents. Characterization by fast atom bombardment mass spectroscopy (FAB−MS) suggests that simultaneous hydrosilylation and hydrogenation reactions account for the nature of the monolayer formation.
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