Controlled Atomic Doping of a Single C 60 Molecule
- 9 April 2004
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 304 (5668) , 281-284
- https://doi.org/10.1126/science.1095069
Abstract
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.Keywords
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