期刊
NANO LETTERS
卷 8, 期 4, 页码 1137-1141出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl073292b
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- Direct For Mathematical & Physical Scien [0745892] Funding Source: National Science Foundation
- Division Of Chemistry [0745892] Funding Source: National Science Foundation
Electron counting of a single porphyrin molecule between two electrodes shows a crossover from sub- to super-Poissonian statistics as the bias voltage is scanned. This is attributed to the simultaneous activation of states with electron transfer rates spanning several orders of magnitude. Time-series analysis of consecutive single-electron transfer events reveals fast and slow transport channels, which are not resolved by the average current alone.
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