Formation of copper clusters on a thiophene mediated Si(111)-(7 X 7) surface via molecular anchors

摘要

Thiophene selectively binds to the pair of adjacent Si adatom and Si rest atom on the Si(111)-(7 X 7) surface, leading to the covalent attachment of C-S-C linkages onto the surface. Cu atoms are found to preferentially adsorb onto the S atoms of the functional C-S-C groups in the formation of copper nanoclusters on the thiophene-mediated Si(111)-(7 X 7) surface.