title: Study of ink paper sensor based on aluminum/carbon nanotubes agglomerated nanocomposites.
abstract: Agglomerated nanocomposites based on Aluminum/Carbon Nanotubes (AI/CNT) were produced by an arc discharge technique under argon/acetone atmosphere and ultrasonically dispersed in distilled water to form an ink-like composite. This ink was spread onto commercial paper to produce a conductive thick film. Experimental results show that the electrical resistance of Al/CNT nanocomposite on paper changes when a mechanical stress and/or heat is applied. The multi-sensory properties obtained are the following: (i) piezoresistive effect, electrical resistance shows linear dependence with pressure intensity at room temperature; (ii) polynomial relationship between electrical resistance and temperature; and (iii) high accuracy thermal sensor compared to a K type thermocouple at 25 degrees C. The nanocomposite and paper morphology was analyzed by Scanning Electron Microscopy with Energy Dispersive Spectrometry (SEM/EDS) and a favorable surface for physisorption was observed. Transmission Electron Microscopy (TEM) was utilized for Al/CNT agglomerated indicating that the ink paper based on nanocomposite shows good performance as a thermo-piezoresistive sensor.
authors.affiliation: Faculdade de Ciências Exatas e Tecnologia, Universidade Federal do Pará, Abaetetuba, PA 68440-000, Brazil.
authors.forename: Marcos A L
authors.initials: MA
authors.lastname: dos Reis
authors.forename: Augusto F
authors.initials: AF
authors.lastname: Saraiva
authors.forename: Manuel F G
authors.initials: MF
authors.lastname: Vieira
authors.forename: Jordan
authors.initials: J
authors.lastname: Del Nero