Controlled Atomic Doping of a Single C 60 Molecule

We report a method for controllably attaching an arbitrary number of charge dopant atoms directly to a single, isolated molecule. Charge-donating K atoms adsorbed on a silver surface were reversibly attached to a C 60 molecule by moving it over K atoms with a scanning tunneling microscope tip. Spect...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2004-04, Vol.304 (5668), p.281-284
Main Authors: Yamachika, R., Grobis, M., Wachowiak, A., Crommie, M. F.
Format: Article
Language:English
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Summary:We report a method for controllably attaching an arbitrary number of charge dopant atoms directly to a single, isolated molecule. Charge-donating K atoms adsorbed on a silver surface were reversibly attached to a C 60 molecule by moving it over K atoms with a scanning tunneling microscope tip. Spectroscopic measurements reveal that each attached K atom donates a constant amount of charge (∼0.6 electron charge) to the C 60 host, thereby enabling its molecular electronic structure to be precisely and reversibly tuned.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1095069