Atomic-scale ion transistor with ultrahigh diffusivity

Yahui Xue; Yang Xia; Sui Yang; Yousif Alsaid; King Yan Fong; Yuan Wang; Xiang Zhang

doi:10.1126/science.abb5144

Atomic-scale ion transistor with ultrahigh diffusivity

Yahui Xue, Yang Xia, Sui Yang, Yousif Alsaid, King Yan Fong, Yuan Wang, Xiang Zhang

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

106 Scopus citations

Abstract

Biological ion channels rapidly and selectively gate ion transport through atomic-scale filters to maintain vital life functions. We report an atomic-scale ion transistor exhibiting ultrafast and highly selective ion transport controlled by electrical gating in graphene channels around 3 angstroms in height, made from a single flake of reduced graphene oxide. The ion diffusion coefficient reaches two orders of magnitude higher than the coefficient in bulk water. Atomic-scale ion transport shows a threshold behavior due to the critical energy barrier for hydrated ion insertion. Our in situ optical measurements suggest that ultrafast ion transport likely originates from highly dense packing of ions and their concerted movement inside the graphene channels.

Original language	English (US)
Pages (from-to)	501-503
Number of pages	3
Journal	Science
Volume	372
Issue number	6541
DOIs	https://doi.org/10.1126/science.abb5144
State	Published - Apr 29 2021
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2021-05-05
Acknowledged KAUST grant number(s): OSR-2016-CRG5-2996
Acknowledgements: Supported by King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research award OSR-2016-CRG5-2996.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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Cite this

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title = "Atomic-scale ion transistor with ultrahigh diffusivity",

abstract = "Biological ion channels rapidly and selectively gate ion transport through atomic-scale filters to maintain vital life functions. We report an atomic-scale ion transistor exhibiting ultrafast and highly selective ion transport controlled by electrical gating in graphene channels around 3 angstroms in height, made from a single flake of reduced graphene oxide. The ion diffusion coefficient reaches two orders of magnitude higher than the coefficient in bulk water. Atomic-scale ion transport shows a threshold behavior due to the critical energy barrier for hydrated ion insertion. Our in situ optical measurements suggest that ultrafast ion transport likely originates from highly dense packing of ions and their concerted movement inside the graphene channels.",

author = "Yahui Xue and Yang Xia and Sui Yang and Yousif Alsaid and Fong, {King Yan} and Yuan Wang and Xiang Zhang",

note = "KAUST Repository Item: Exported on 2021-05-05 Acknowledged KAUST grant number(s): OSR-2016-CRG5-2996 Acknowledgements: Supported by King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research award OSR-2016-CRG5-2996. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

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doi = "10.1126/science.abb5144",

language = "English (US)",

volume = "372",

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T1 - Atomic-scale ion transistor with ultrahigh diffusivity

AU - Xue, Yahui

AU - Xia, Yang

AU - Yang, Sui

AU - Alsaid, Yousif

AU - Fong, King Yan

AU - Wang, Yuan

AU - Zhang, Xiang

N1 - KAUST Repository Item: Exported on 2021-05-05 Acknowledged KAUST grant number(s): OSR-2016-CRG5-2996 Acknowledgements: Supported by King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research award OSR-2016-CRG5-2996. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2021/4/29

Y1 - 2021/4/29

N2 - Biological ion channels rapidly and selectively gate ion transport through atomic-scale filters to maintain vital life functions. We report an atomic-scale ion transistor exhibiting ultrafast and highly selective ion transport controlled by electrical gating in graphene channels around 3 angstroms in height, made from a single flake of reduced graphene oxide. The ion diffusion coefficient reaches two orders of magnitude higher than the coefficient in bulk water. Atomic-scale ion transport shows a threshold behavior due to the critical energy barrier for hydrated ion insertion. Our in situ optical measurements suggest that ultrafast ion transport likely originates from highly dense packing of ions and their concerted movement inside the graphene channels.

AB - Biological ion channels rapidly and selectively gate ion transport through atomic-scale filters to maintain vital life functions. We report an atomic-scale ion transistor exhibiting ultrafast and highly selective ion transport controlled by electrical gating in graphene channels around 3 angstroms in height, made from a single flake of reduced graphene oxide. The ion diffusion coefficient reaches two orders of magnitude higher than the coefficient in bulk water. Atomic-scale ion transport shows a threshold behavior due to the critical energy barrier for hydrated ion insertion. Our in situ optical measurements suggest that ultrafast ion transport likely originates from highly dense packing of ions and their concerted movement inside the graphene channels.

UR - http://hdl.handle.net/10754/669077

UR - https://www.sciencemag.org/lookup/doi/10.1126/science.abb5144

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VL - 372

SP - 501

EP - 503

JO - Science

JF - Science

IS - 6541

ER -

Atomic-scale ion transistor with ultrahigh diffusivity

Abstract

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