Inkjet printing of polymer functionalized CNT gas sensor with enhanced sensing properties
Source abstract
Abstract
Abstract We report on fully inkjet printed carbon nanotubes gas sensors on flexible substrates with improved ethanol sensing characteristics. The sensors were fabricated via two simple steps: printing the electrodes and the carbon nanotubes based - active layer. Carbon nanotubes were functionalized with carboxylic acid (COOH) and poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS). The performance analysis shows a significant enhancement in the sensitivity of the sensor with polymer wrapped nanotubes in comparison with the oxidized nanotubes, with enhancement factors greater than 2.5. Moreover, a remarkable improvement in the sensor response and recovery times after polymer functionalization is noted which bodes well for fully printable environmental sensors on flexible plastic circuits.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Chemical Sensor Technologies · Conducting polymers and applications · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
Show source-provided references
1. Latest advances in modified/functionalized carbon nanotube-based gas sensors
2. Application of plasma modified multi-wall carbon nanotubes to ethanol vapor detection10.1016/j.snb.2010.08.026 ↗
3. Carbon nanotube-based sensors10.1166/jnn.2006.121 ↗
4. Enhancement of sensitivity in gas chemiresistors based on carbon nanotube surface functionalized with noble metal (Au, Pt) nanoclusters10.1063/1.2722207 ↗
5. Chemistry of single-walled carbon nanotubes10.1021/ar010155r ↗
6. Gas-sensing characteristics of dielectrophoretically assembled composite film of oxygen plasma-treated SWCNTs and PEDOT/PSS polymer10.1016/j.snb.2012.12.085 ↗
7. E. Llobet, 4.4. 3 Carbon Nanomaterials for Environmental Monitoring Sensors, Tagungsband, 2012, pp. 384–38610.5162/IMCS2012/4.4.3 ↗
8. Single-walled carbon nanotube networks for ethanol vapor sensing applications10.1007/s12274-012-0282-6 ↗
9. A highly selective chemical gas sensor based on functionalization of multi-walled carbon nanotubes with poly(ethylene glycol)10.1016/j.snb.2007.03.018 ↗
10. Gas sensors based on conducting polymers10.3390/s7030267 ↗
11. Oxidised carbon nanotubes as solution processable, high work function hole-extraction layers for organic solar cells10.1016/j.orgel.2008.12.013 ↗
12. Storage lifetime of polymer-carbon nanotube inks for use as charge transport layers in organic light emitting diodes
13. Inkjet printed PEDOT:PSS/MWCNT nano‐composites with aligned carbon nanotubes and enhanced conductivity10.1002/pssr.201308231 ↗
14. Multi-wall carbon nanotube networks as potential resistive gas sensors for organic vapor detection10.1016/j.carbon.2011.02.020 ↗
15. MWCNT-polymer composites as highly sensitive and selective room temperature gas sensors10.1088/0957-4484/22/21/215502 ↗
16. Carbon nanotube-based ethanol sensors10.1088/0957-4484/20/23/235502 ↗
17. Chemical sensors based on highly conductive poly (3, 4‐ethylenedioxythiophene) nanorods10.1002/adma.200401909 ↗
18. P. Lorwongtragool, E. Sowade, T. Kerdcharoen, R. Baumann, All inkjet-printed chemical gas sensors based on CNT/polymer nanocomposites: Comparison between double printed layers and blended single layer. in: Proceedings of the 2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2012. pp. 1–4.
19. Characterization of layer-by-layer nano self-assembled carbon nanotube/polymer film sensor for ethanol gas sensing properties10.1007/s00542-013-1943-4 ↗