Optical Humidity Sensor Based on Tapered Fiber with Multi-walled Carbon Nanotubes Slurry
Document Type
Article
Publication Date
1-1-2017
Abstract
We demonstrated performance comparison of optical humidity sensor for bare and Multi-walled carbon nanotubes (MWCNTs) slurry coated tapered optical fiber. The starting material for MWCNTs slurry is MWCNTs- acrylonitrile butadiene styrene (ABS) based fused deposition modeling (FDM) 3D printer filament. The ABS was dissolved using acetone to produce MWCNTs-acetone suspension. The MWCNTs-acetone suspension was drop-casted on the tapered fiber to produce MWCNTs slurry by evaporation process at room temperature, which resulted the MWCNTs slurry attach to the tapered fiber. The MWCNTs slurry acts as the cladding for humidity changes measurement. The experimental works showed improvement of sensitivity from 3.811 μW/% of bare tapered fiber to 5.17 μW/% for the coated tapered fiber with MWCNTs slurry when the humidity varied from 45% to 80%.
Keywords
Multi-walled carbon nanotubes, Optical humidity sensor, Sensitivity, Tapered optical fiber
Divisions
fac_eng
Funders
Universiti Teknologi Malaysia (UTM) and Ministry of Higher Education (MOHE) Malaysia: Research University Grant (RUG) Scheme grant no: 10J99 and 15H81, University Grant vote Q.K130000.2643.11J51
Publication Title
Indonesian Journal of Electrical Engineering and Computer Science
Volume
6
Issue
1
Publisher
Institute of Advanced Engineering and Science