Multi-walled carbon nanotubes doped Poly(Methyl MethAcrylate) microfiber for relative humidity sensing
Document Type
Article
Publication Date
1-1-2018
Abstract
Multi-walled carbon nanotubes (MWCNTs) doped Poly(Methyl MethAcrylate) (PMMA) microfiber was proposed and demonstrated for relative humidity sensing. It was prepared through a direct drawing technique to achieve a diameter of 5 μm and a length of 5 mm. As the relative humidity increases from 45% to 80%, the output power of the sensor decreases linearly with a sensitivity of 0.3341 dBm/% and a resolution of 1.649%. The result signifies that PMMA doped with MWCNTs exhibits better sensitivity and higher resolution compared to the un-doped PMMA microfiber sensor. In addition, the sensor exhibits high reliability as well good repeatability.
Keywords
Polymer microfiber, Humidity sensor, Microfiber sensor, Fiber optic, MWCNTs, Carbon nanotubes
Publication Title
Sensors and Actuators A: Physical
Divisions
fac_eng,photonics
Volume
272
Publisher
Elsevier