@misc{10481/100834,
year = {2024},
month = {8},
url = {https://hdl.handle.net/10481/100834},
abstract = {There is evidence of the presence of intercalated water between graphene and the substrate in electronic devices.
However, a proper understanding of the impact of this phenomenon, which causes important limitations for the optimization of
graphene-based devices operating in aqueous electrolytes, is missing. We used graphene-based electrodes on insulating and
conducting substrates to evaluate the impact of intercalated water by combining experimental techniques with numerical simulations.
Results show that the capacitance of the conductive substrate/graphene electrodes is significantly higher than that of the insulating
substrate/graphene ones. Meanwhile, Raman spectroscopy demonstrates that graphene charge modulation with the applied potential
is independent of the substrate conductivity. We found that this intriguing behavior is influenced by the water intercalation
phenomena and governed by the substrate conductive nature. This work contributes to the understanding of the electric response of
graphene-based devices in an aqueous environment and of the methods to measure and model it.},
organization = {Autonomous University of Barcelona},
organization = {MCIN/AEI/10.13039/501100011033 PRE2018-086251, PID2020-113663RB-I00, PID2020-116518GB-I00, TED2021-129769B-I00,  RYC2019-027879-I},
organization = {FSE},
organization = {UE},
organization = {European Union’s Horizon 2020 881603},
organization = {European Union NextGenerationEU/PRTR},
organization = {MICINN Spanish ICTS Network MICRONANOFABS},
organization = {ICTS NANBIOSIS},
organization = {MicroNanoTechnology Unit U8  CIBER-BBN},
organization = {Generalitat de Catalunya (2021-SGR-01534), (2021SGR00495)},
organization = {Spanish Ministerio de Ciencia e Innovación (PID2021-126117NA-I00, PLEC2022-009232)},
organization = {CIBER-BBN (CB06/01/0049)},
publisher = {American Chemical Society},
title = {Interfacial Phenomena Governing Performance of Graphene Electrodes in Aqueous Electrolyte},
doi = {10.1021/acs.nanolett.4c01808},
author = {Delgà-Fernández, Marta and Toral López, Alejandro and González Marín, Enrique and Godoy Medina, Andrés},
}