Please use this identifier to cite or link to this item:
http://hdl.handle.net/1843/64240| Type: | Artigo de Periódico |
| Title: | Aerosol-printed MoS2 ink as a high sensitivity humidity sensor |
| Authors: | Neuma das Mercês Pereira Rodrigo Gribel Lacerda Natália Pereira Rezende Thiago Henrique Rodrigues da Cunha Ana Paula Moreira Barboza Glaura Goulart Silva Daniel Lippross Bernardo Ruegger Almeida Neves Helio Chacham Andre Santarosa Ferlauto |
| Abstract: | Molybdenum 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. |
| Subject: | Condutividade elétrica Umidade Detectores |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ICX - DEPARTAMENTO DE FÍSICA ICX - DEPARTAMENTO DE QUÍMICA |
| Rights: | Acesso Aberto |
| metadata.dc.identifier.doi: | https://doi.org/10.1021/acsomega.1c06525 |
| URI: | http://hdl.handle.net/1843/64240 |
| Issue Date: | 2022 |
| metadata.dc.url.externa: | https://pubs.acs.org/doi/full/10.1021/acsomega.1c06525 |
| metadata.dc.relation.ispartof: | ACS Omega |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Aerosol-Printed MoS2Ink as a High Sensitivity Humidity Sensor (1).pdf | 13.08 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.