Title :
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
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, τresp; and recovery time, τrec) 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 τresp and τrec 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;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013 Transducers & Eurosensors XXVII: The 17th International Conference on
Conference_Location :
Barcelona
DOI :
10.1109/Transducers.2013.6626977
