Inkjet printing of polymer functionalized CNT gas sensor with enhanced sensing properties
| Autor: | K.T. Lai, S. R. P. Silva, Mohammad R. Alenezi, Abdullah S. Alshammari |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Nanocomposite Materials science Mechanical Engineering Nanotechnology 02 engineering and technology Carbon nanotube Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences law.invention Active layer chemistry PEDOT:PSS Mechanics of Materials law Frit compression Electrode General Materials Science 0210 nano-technology Carbon nanotubes in photovoltaics |
| Zdroj: | Materials Letters. 189:299-302 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2016.11.033 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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