Carbon nanofiber flexible gas sensor modulated by UV light

Author

Monereo, O. ; Claramunt, S. ; Vescio, G. ; Lahlou, H. ; Leghrib, R. ; Prades, J.D. ; Cornet, A. ; Cirera, A.

Author_Institution

Electron. Dept., Univ. de Barcelona, Barcelona, Spain

fYear

2013

fDate

16-20 June 2013

Firstpage

1154

Lastpage

1157

Abstract

Herein, we present a flexible gas sensor based on carbon nanofibers (CNFs). The sensing device was fabricated by means of low-cost techniques: inkjet printing and spray coating. Characterization on the use of ultraviolet (UV) light in order to modulate the sensor signal was performed. Sensor response and characteristics times (response time, τ_resp; and recovery time, τ_rec) were fully characterized. UV illumination was also chosen to anneal the sensing active layer in the fabrication process and to fasten desorption of the gas adsorbed, achieving a stable sensor signal. Furthermore, better conditions of UV radiation to optimize τ_resp and τ_rec were found.

Keywords

carbon fibres; flexible electronics; gas sensors; ink jet printing; nanofibres; optical modulation; spray coatings; C; UV illumination; UV light modulation; UV radiation; carbon nanofiber flexible gas sensor; characteristics times; desorption; inkjet printing; sensor response; spray coating; Carbon; Carbon dioxide; Fabrication; Gas detectors; Lighting; Materials; Flexible electronics; UV light modulation; carbon nanofibers gas sensor; inkjet printing;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013 Transducers & Eurosensors XXVII: The 17th International Conference on

Conference_Location

Barcelona

Type

conf

DOI

10.1109/Transducers.2013.6626977

Filename

6626977