Coulomb blockade effect and negative differential resistance in the electronic transport of bacteriorhodopsin

Jong Yeob Kim; Sunbae Lee; Kyung Hwa Yoo; Du Jeon Jang

doi:10.1063/1.3119205

Coulomb blockade effect and negative differential resistance in the electronic transport of bacteriorhodopsin

Jong Yeob Kim, Sunbae Lee, Kyung Hwa Yoo, Du Jeon Jang

Department of Physics

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

A functional protein of bacteriorhodopsin has been employed for an approach to develop molecular single-electron transistors. A purple-membrane nanofragment shows a characteristic, cyclic, and reproducible I-V curve having negative differential resistance and an on-off peak-to-valley ratio of 660. The conductance increases exponentially with temperature increase with an activation energy of 47 meV, comparable to the charging energy of a bacteriorhodopsin molecule. This with observed I-V scaling relationship indicates that the Coulomb blockade is the primary conductance-limiting feature and that charges are carried by arrayed Coulomb islands of bacteriorhodopsin.

Original language	English
Article number	153301
Journal	Applied Physics Letters
Volume	94
Issue number	15
DOIs	https://doi.org/10.1063/1.3119205
Publication status	Published - 2009

Bibliographical note

Funding Information:
This work was supported by the Nano R&D (Grant No. M10703000871–07M0300–87110) and SRC (Grant No. R11–2007–012–01002–0) Programs of the Korea Science and Engineering Foundation. J.-Y.K. acknowledges the BK21 Scholarship as well.

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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Cite this

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title = "Coulomb blockade effect and negative differential resistance in the electronic transport of bacteriorhodopsin",

abstract = "A functional protein of bacteriorhodopsin has been employed for an approach to develop molecular single-electron transistors. A purple-membrane nanofragment shows a characteristic, cyclic, and reproducible I-V curve having negative differential resistance and an on-off peak-to-valley ratio of 660. The conductance increases exponentially with temperature increase with an activation energy of 47 meV, comparable to the charging energy of a bacteriorhodopsin molecule. This with observed I-V scaling relationship indicates that the Coulomb blockade is the primary conductance-limiting feature and that charges are carried by arrayed Coulomb islands of bacteriorhodopsin.",

author = "Kim, {Jong Yeob} and Sunbae Lee and Yoo, {Kyung Hwa} and Jang, {Du Jeon}",

note = "Funding Information: This work was supported by the Nano R&D (Grant No. M10703000871–07M0300–87110) and SRC (Grant No. R11–2007–012–01002–0) Programs of the Korea Science and Engineering Foundation. J.-Y.K. acknowledges the BK21 Scholarship as well.",

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AU - Kim, Jong Yeob

AU - Lee, Sunbae

AU - Yoo, Kyung Hwa

AU - Jang, Du Jeon

N1 - Funding Information: This work was supported by the Nano R&D (Grant No. M10703000871–07M0300–87110) and SRC (Grant No. R11–2007–012–01002–0) Programs of the Korea Science and Engineering Foundation. J.-Y.K. acknowledges the BK21 Scholarship as well.

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Y1 - 2009

N2 - A functional protein of bacteriorhodopsin has been employed for an approach to develop molecular single-electron transistors. A purple-membrane nanofragment shows a characteristic, cyclic, and reproducible I-V curve having negative differential resistance and an on-off peak-to-valley ratio of 660. The conductance increases exponentially with temperature increase with an activation energy of 47 meV, comparable to the charging energy of a bacteriorhodopsin molecule. This with observed I-V scaling relationship indicates that the Coulomb blockade is the primary conductance-limiting feature and that charges are carried by arrayed Coulomb islands of bacteriorhodopsin.

AB - A functional protein of bacteriorhodopsin has been employed for an approach to develop molecular single-electron transistors. A purple-membrane nanofragment shows a characteristic, cyclic, and reproducible I-V curve having negative differential resistance and an on-off peak-to-valley ratio of 660. The conductance increases exponentially with temperature increase with an activation energy of 47 meV, comparable to the charging energy of a bacteriorhodopsin molecule. This with observed I-V scaling relationship indicates that the Coulomb blockade is the primary conductance-limiting feature and that charges are carried by arrayed Coulomb islands of bacteriorhodopsin.

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Coulomb blockade effect and negative differential resistance in the electronic transport of bacteriorhodopsin

Abstract

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