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From redox gating to quantized charging

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From redox gating to quantized charging. / Li, Z.; Liu, Y.; Mertens, S.F.L. et al.
In: Journal of the American Chemical Society, Vol. 132, No. 23, 2010, p. 8187-8193.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Li, Z, Liu, Y, Mertens, SFL, Pobelov, IV & Wandlowski, T 2010, 'From redox gating to quantized charging', Journal of the American Chemical Society, vol. 132, no. 23, pp. 8187-8193. https://doi.org/10.1021/ja102754n

APA

Li, Z., Liu, Y., Mertens, S. F. L., Pobelov, I. V., & Wandlowski, T. (2010). From redox gating to quantized charging. Journal of the American Chemical Society, 132(23), 8187-8193. https://doi.org/10.1021/ja102754n

Vancouver

Li Z, Liu Y, Mertens SFL, Pobelov IV, Wandlowski T. From redox gating to quantized charging. Journal of the American Chemical Society. 2010;132(23):8187-8193. doi: 10.1021/ja102754n

Author

Li, Z. ; Liu, Y. ; Mertens, S.F.L. et al. / From redox gating to quantized charging. In: Journal of the American Chemical Society. 2010 ; Vol. 132, No. 23. pp. 8187-8193.

Bibtex

@article{1c5b686539834aa1bbb9c450aff787f9,
title = "From redox gating to quantized charging",
abstract = "Electron transport characteristics were studied in redox molecule-modified tunneling junctions Au(111)|6-thiohexanoylferrocene (Fc6)|solution gap|Au STM tip in the absence and in the presence of gold nanoclusters employing an electrochemical STM setup. We observed transistor- and diode-like current-voltage responses accounted for by the redox process at the ferrocene moiety. We demonstrate that the reorganization energy of the redox site decreases with decreasing gap size. As a unique new feature, we discovered the formation of uniform (size -2.4 nm) gold nanoparticles, upon multiple oxidation/reduction cycles of the Fc6 adlayer. The immobilized nanoparticles modify the electron transport response of the Fc6 tunneling junctions dramatically. On top of embedded single nanoparticles we observed single-electron Coulomb charging signatures with up to seven narrow and equally spaced energy states upon electrochemical gating. Our results demonstrate the power of the electrochemical approach in molecular electronics and offer a new perspective toward two-state and multistate electronic switching in condensed media at room temperature. {\textcopyright} 2010 American Chemical Society.",
keywords = "Adlayers, Au(1 1 1 ), Condensed media, Coulomb charging, Current-voltage response, Electrochemical gating, Electrochemical STM, Electron transport, Electronic switching, Energy state, Ferrocene moiety, Gap size, Gold nanocluster, Gold Nanoparticles, Immobilized nanoparticle, Multi state, Quantized charging, Redox gating, Redox molecules, Redox process, Redox sites, Reorganization energies, Room temperature, Single electron, Single nanoparticle, Tunneling junctions, Two-state, Electron transitions, Electron transport properties, Iron compounds, Molecular electronics, Tunneling (excavation), Nanoparticles, ferrocene, gold nanoparticle, article, channel gating, diode, electric current, electric potential, electrochemistry, electron transport, electronics, oxidation reduction reaction, particle size, room temperature, semiconductor, Electric Conductivity, Electrochemistry, Electrodes, Electrolytes, Electron Transport, Ferrous Compounds, Gold, Organometallic Compounds, Spectrum Analysis, Surface Properties, Transistors, Electronic",
author = "Z. Li and Y. Liu and S.F.L. Mertens and I.V. Pobelov and T. Wandlowski",
year = "2010",
doi = "10.1021/ja102754n",
language = "English",
volume = "132",
pages = "8187--8193",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "AMER CHEMICAL SOC",
number = "23",

}

RIS

TY - JOUR

T1 - From redox gating to quantized charging

AU - Li, Z.

AU - Liu, Y.

AU - Mertens, S.F.L.

AU - Pobelov, I.V.

AU - Wandlowski, T.

PY - 2010

Y1 - 2010

N2 - Electron transport characteristics were studied in redox molecule-modified tunneling junctions Au(111)|6-thiohexanoylferrocene (Fc6)|solution gap|Au STM tip in the absence and in the presence of gold nanoclusters employing an electrochemical STM setup. We observed transistor- and diode-like current-voltage responses accounted for by the redox process at the ferrocene moiety. We demonstrate that the reorganization energy of the redox site decreases with decreasing gap size. As a unique new feature, we discovered the formation of uniform (size -2.4 nm) gold nanoparticles, upon multiple oxidation/reduction cycles of the Fc6 adlayer. The immobilized nanoparticles modify the electron transport response of the Fc6 tunneling junctions dramatically. On top of embedded single nanoparticles we observed single-electron Coulomb charging signatures with up to seven narrow and equally spaced energy states upon electrochemical gating. Our results demonstrate the power of the electrochemical approach in molecular electronics and offer a new perspective toward two-state and multistate electronic switching in condensed media at room temperature. © 2010 American Chemical Society.

AB - Electron transport characteristics were studied in redox molecule-modified tunneling junctions Au(111)|6-thiohexanoylferrocene (Fc6)|solution gap|Au STM tip in the absence and in the presence of gold nanoclusters employing an electrochemical STM setup. We observed transistor- and diode-like current-voltage responses accounted for by the redox process at the ferrocene moiety. We demonstrate that the reorganization energy of the redox site decreases with decreasing gap size. As a unique new feature, we discovered the formation of uniform (size -2.4 nm) gold nanoparticles, upon multiple oxidation/reduction cycles of the Fc6 adlayer. The immobilized nanoparticles modify the electron transport response of the Fc6 tunneling junctions dramatically. On top of embedded single nanoparticles we observed single-electron Coulomb charging signatures with up to seven narrow and equally spaced energy states upon electrochemical gating. Our results demonstrate the power of the electrochemical approach in molecular electronics and offer a new perspective toward two-state and multistate electronic switching in condensed media at room temperature. © 2010 American Chemical Society.

KW - Adlayers

KW - Au(1 1 1 )

KW - Condensed media

KW - Coulomb charging

KW - Current-voltage response

KW - Electrochemical gating

KW - Electrochemical STM

KW - Electron transport

KW - Electronic switching

KW - Energy state

KW - Ferrocene moiety

KW - Gap size

KW - Gold nanocluster

KW - Gold Nanoparticles

KW - Immobilized nanoparticle

KW - Multi state

KW - Quantized charging

KW - Redox gating

KW - Redox molecules

KW - Redox process

KW - Redox sites

KW - Reorganization energies

KW - Room temperature

KW - Single electron

KW - Single nanoparticle

KW - Tunneling junctions

KW - Two-state

KW - Electron transitions

KW - Electron transport properties

KW - Iron compounds

KW - Molecular electronics

KW - Tunneling (excavation)

KW - Nanoparticles

KW - ferrocene

KW - gold nanoparticle

KW - article

KW - channel gating

KW - diode

KW - electric current

KW - electric potential

KW - electrochemistry

KW - electron transport

KW - electronics

KW - oxidation reduction reaction

KW - particle size

KW - room temperature

KW - semiconductor

KW - Electric Conductivity

KW - Electrochemistry

KW - Electrodes

KW - Electrolytes

KW - Electron Transport

KW - Ferrous Compounds

KW - Gold

KW - Organometallic Compounds

KW - Spectrum Analysis

KW - Surface Properties

KW - Transistors, Electronic

U2 - 10.1021/ja102754n

DO - 10.1021/ja102754n

M3 - Journal article

VL - 132

SP - 8187

EP - 8193

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 23

ER -