期刊
SCIENCE
卷 304, 期 5668, 页码 281-284出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1095069
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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 ( similar to 0.6 electron charge) to the C-60 host, thereby enabling its molecular electronic structure to be precisely and reversibly tuned.
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