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arXiv · 0804.1881

Single-electron counting spectroscopy: simulation study of porphyrin in a molecular junction

Sven Welack·Jeremy B. Maddox·Massimiliano Esposito·Upendra Harbola·Shaul Mukamel
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Abstract

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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Sven Welack, Jeremy B. Maddox, Massimiliano Esposito, Upendra Harbola, Shaul Mukamel. 2008-04-11. Single-electron counting spectroscopy: simulation study of porphyrin in a molecular junction. https://doi.org/10.1021/nl073292b

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