Potential of electrolyte-gated transistors for anionic molecule detection: proof of concept using dye solution

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorOzório, Maíza S-
Autor(es): dc.creatorRubira, Rafael J G-
Autor(es): dc.creatorVieira, Douglas H-
Autor(es): dc.creatorMartin, Cibely S-
Autor(es): dc.creatorConstantino, Carlos J L-
Data de aceite: dc.date.accessioned2025-08-21T15:35:32Z-
Data de disponibilização: dc.date.available2025-08-21T15:35:32Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-02-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1088/1361-6463/ad06ec-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/300140-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/300140-
Descrição: dc.descriptionThe use of electrolyte-gated transistors (EGTs) as sensors can be an advantageous alternative for the detection of anionic molecules due to their capability to detect various ions in solution. In this study, we explore the potential of EGTs as analytical tools for detecting anionic molecules, utilizing a copper phthalocyanine-3,4′,4″,4‴-tetrasulfonic acid tetrasodium salt (CuTsPc) solution as a proof of concept. The results demonstrate the EGT’s capacity in detecting CuTsPc in an aqueous solution, which molecule dissociates into sodium ions (Na+) and CuPc(SO3−)4 ions, leading to high ionic conductivity and the formation of electrical double layers (EDLs). Varying the concentration of the molecule induced alterations in the EDLs, exhibiting good linearity and sensitivity in the transconductance, and a detection limit of 6.0 × 10−8 mol l−1. Transistors employing the CuTsPc solution as electrolyte operated at low voltages and performed better than water-gated transistors (W-GTs). The transconductance (gm ) value for EGTs using CuTsPc solution reached 1.93 mS, while for W-GTs it was around 0.10 mS. Thus, the CuTsPc solution not only serves as a target-molecule in sensor measurements, but also demonstrates potential as an electrolyte in EGTs, thereby assuming a dual role within the device. The main advantage of the EGTs as an analytical tool is their use as a multiparameter device that enables the detection of the analytes using different phenomena that occur at the EDLs interface and which, consequently, changes the device’s performance.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de Goiás-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado do Piauí-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionInstituto Nacional de Perinatología-
Descrição: dc.descriptionDepartment of Physics São Paulo State University UNESP School of Science and Technology (FCT), SP-
Descrição: dc.descriptionDepartment of Physics and Chemistry São Paulo State University UNESP School of Engineering (FEIS), SP-
Descrição: dc.descriptionDepartment of Physics São Paulo State University UNESP School of Science and Technology (FCT), SP-
Descrição: dc.descriptionDepartment of Physics and Chemistry São Paulo State University UNESP School of Engineering (FEIS), SP-
Idioma: dc.languageen-
Relação: dc.relationJournal of Physics D: Applied Physics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectanionic molecules-
Palavras-chave: dc.subjectcopper phthalocyanine-
Palavras-chave: dc.subjectEGTs-
Palavras-chave: dc.subjectelectrical characterization-
Palavras-chave: dc.subjectelectrolyte-gated transistor-
Palavras-chave: dc.subjectsensors-
Título: dc.titlePotential of electrolyte-gated transistors for anionic molecule detection: proof of concept using dye solution-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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