Gate-controlled suppression of light-driven proton transport through graphene electrodes

S. Huang; Eoin Griffin; J. Cai; Benhao Xin; J. Tong; Y. Fu; V. Kravets; F. M. Peeters; Marcelo Lozada-Hidalgo

doi:10.1038/s41467-023-42617-4

Gate-controlled suppression of light-driven proton transport through graphene electrodes

S. Huang, Eoin Griffin, J. Cai, Benhao Xin, J. Tong, Y. Fu, V. Kravets, F. M. Peeters, Marcelo Lozada-Hidalgo

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

5 Citations (SciVal)

Abstract

Recent experiments demonstrated that proton transport through graphene electrodes can be accelerated by over an order of magnitude with low intensity illumination. Here we show that this photo-effect can be suppressed for a tuneable fraction of the infra-red spectrum by applying a voltage bias. Using photocurrent measurements and Raman spectroscopy, we show that such fraction can be selected by tuning the Fermi energy of electrons in graphene with a bias, a phenomenon controlled by Pauli blocking of photo-excited electrons. These findings demonstrate a dependence between graphene’s electronic and proton transport properties and provide fundamental insights into molecularly thin electrode-electrolyte interfaces and their interaction with light.

Original language	English
Number of pages	7
Journal	Nature Communications
Volume	14
Issue number	1
DOIs	https://doi.org/10.1038/s41467-023-42617-4
Publication status	Published - 31 Oct 2023

Data Availability Statement

Relevant data supporting the key findings of this study are available within the article and the Supplementary Information file. All raw data generated during the current study are available from the corresponding authors upon request.

Funding

This work was supported by The Royal Society (URF\R1\201515, M.L.-H.) and Engineering and Physical Sciences Research Council (EP/X017745, M.L.-H.). S.H. would like to thank the Swiss National Science Foundation Postdoc Mobility Fellowships for funding.

Funders	Funder number
The Royal Society	URF\R1\201515
Engineering and Physical Sciences Research Council	EP/X017745

Access to Document

10.1038/s41467-023-42617-4Licence: CC BY

https://www.nature.com/articles/s41467-023-42617-4

Cite this

@article{4de0ac5fe7f84d24b9909af48b130ca0,

title = "Gate-controlled suppression of light-driven proton transport through graphene electrodes",

abstract = "Recent experiments demonstrated that proton transport through graphene electrodes can be accelerated by over an order of magnitude with low intensity illumination. Here we show that this photo-effect can be suppressed for a tuneable fraction of the infra-red spectrum by applying a voltage bias. Using photocurrent measurements and Raman spectroscopy, we show that such fraction can be selected by tuning the Fermi energy of electrons in graphene with a bias, a phenomenon controlled by Pauli blocking of photo-excited electrons. These findings demonstrate a dependence between graphene{\textquoteright}s electronic and proton transport properties and provide fundamental insights into molecularly thin electrode-electrolyte interfaces and their interaction with light.",

author = "S. Huang and Eoin Griffin and J. Cai and Benhao Xin and J. Tong and Y. Fu and V. Kravets and Peeters, {F. M.} and Marcelo Lozada-Hidalgo",

year = "2023",

month = oct,

day = "31",

doi = "10.1038/s41467-023-42617-4",

language = "English",

volume = "14",

journal = "Nature Communications",

issn = "2041-1723",

publisher = "Nature Research",

number = "1",

}

TY - JOUR

T1 - Gate-controlled suppression of light-driven proton transport through graphene electrodes

AU - Huang, S.

AU - Griffin, Eoin

AU - Cai, J.

AU - Xin, Benhao

AU - Tong, J.

AU - Fu, Y.

AU - Kravets, V.

AU - Peeters, F. M.

AU - Lozada-Hidalgo, Marcelo

PY - 2023/10/31

Y1 - 2023/10/31

N2 - Recent experiments demonstrated that proton transport through graphene electrodes can be accelerated by over an order of magnitude with low intensity illumination. Here we show that this photo-effect can be suppressed for a tuneable fraction of the infra-red spectrum by applying a voltage bias. Using photocurrent measurements and Raman spectroscopy, we show that such fraction can be selected by tuning the Fermi energy of electrons in graphene with a bias, a phenomenon controlled by Pauli blocking of photo-excited electrons. These findings demonstrate a dependence between graphene’s electronic and proton transport properties and provide fundamental insights into molecularly thin electrode-electrolyte interfaces and their interaction with light.

AB - Recent experiments demonstrated that proton transport through graphene electrodes can be accelerated by over an order of magnitude with low intensity illumination. Here we show that this photo-effect can be suppressed for a tuneable fraction of the infra-red spectrum by applying a voltage bias. Using photocurrent measurements and Raman spectroscopy, we show that such fraction can be selected by tuning the Fermi energy of electrons in graphene with a bias, a phenomenon controlled by Pauli blocking of photo-excited electrons. These findings demonstrate a dependence between graphene’s electronic and proton transport properties and provide fundamental insights into molecularly thin electrode-electrolyte interfaces and their interaction with light.

U2 - 10.1038/s41467-023-42617-4

DO - 10.1038/s41467-023-42617-4

M3 - Article

SN - 2041-1723

VL - 14

JO - Nature Communications

JF - Nature Communications

IS - 1

ER -

Gate-controlled suppression of light-driven proton transport through graphene electrodes

Abstract

Data Availability Statement

Funding

Access to Document

Fingerprint

Cite this