Aerosol-printed MoS2 ink as a high sensitivity humidity sensor

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dc.creatorNeuma das Mercês Pereira
dc.creatorRodrigo Gribel Lacerda
dc.creatorNatália Pereira Rezende
dc.creatorThiago Henrique Rodrigues da Cunha
dc.creatorAna Paula Moreira Barboza
dc.creatorGlaura Goulart Silva
dc.creatorDaniel Lippross
dc.creatorBernardo Ruegger Almeida Neves
dc.creatorHelio Chacham
dc.creatorAndre Santarosa Ferlauto
dc.date.accessioned2024-02-19T18:03:03Z
dc.date.accessioned2025-09-08T23:05:29Z
dc.date.available2024-02-19T18:03:03Z
dc.date.issued2022
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.1021/acsomega.1c06525
dc.identifier.issn2470-1343
dc.identifier.urihttps://hdl.handle.net/1843/64240
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofACS Omega
dc.rightsAcesso Aberto
dc.subjectCondutividade elétrica
dc.subjectUmidade
dc.subjectDetectores
dc.subject.otherElectrical conductivity
dc.subject.otherElectrical properties
dc.subject.otherHumidity
dc.subject.otherLayers
dc.subject.otherSensors
dc.titleAerosol-printed MoS2 ink as a high sensitivity humidity sensor
dc.typeArtigo de periódico
local.citation.epage9396
local.citation.issue11
local.citation.spage9388
local.citation.volume7
local.description.resumoMolybdenum disulfide (MoS2) is attractive for use in next-generation nanoelectronic devices and exhibits great potential for humiditysensing applications. Herein, MoS2ink was successfully prepared via asimple exfoliation method by sonication. The structural and surfacemorphology of a deposited inkfilm was analyzed by scanning electronmicroscopy (SEM), Raman spectroscopy, and atomic force microscopy(AFM). The aerosol-printed MoS2ink sensor has high sensitivity, with aconductivity increase by 6 orders of magnitude upon relative humidityincrease from 10 to 95% at room temperature. The sensor also has fastresponse/recovery times and excellent repeatability. Possible mechanismsfor the water-induced conductivity increase are discussed. An analyticalmodel that encompasses two ionic conduction regimes, with a percolationtransition to an insulating state below a low humidity threshold, describesthe sensor response successfully. In conclusion, our work provides a low-cost and straightforward strategy for fabricating a high-performance humidity sensor and fundamental insights into the sensing mechanism.
local.identifier.orcidhttps://orcid.org/0000-0003-3270-7652
local.identifier.orcidhttps://orcid.org/0000-0003-4777-7370
local.identifier.orcidhttps://orcid.org/0000-0002-9146-733X
local.identifier.orcidhttps://orcid.org/0000-0002-1807-971X
local.identifier.orcidhttps://orcid.org/0000-0002-0308-0179
local.identifier.orcidhttps://orcid.org/0000-0003-0464-4754
local.identifier.orcidhttps://orcid.org/0000-0001-5041-9094
local.identifier.orcidhttps://orcid.org/0000-0003-3056-7289
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://pubs.acs.org/doi/full/10.1021/acsomega.1c06525

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