Article ID Journal Published Year Pages File Type
8022308 Materials Letters 2013 5 Pages PDF
Abstract
The aligned zinc oxide (ZnO) nanotubes (NTs) thin film was grown on fluorine doped tin oxide (FTO) substrates by low temperature solution method and utilized as a smart working electrode for the fabrication of ethanolamine chemical sensor. The synthesized ZnO possessed well crystalline tubular morphology with typical hexagonal wurtzite phase. The aligned ZnO NTs thin film presented a good optical band gap of ∼3.31 eV which was nearly close to the bulk ZnO nanomaterials. The fabricated ethanolamine chemical sensor based on aligned ZnO NTs thin film electrode showed significantly high sensitivity of ∼37.4×10−4 mA mM−1 cm−2, good linearity of ∼0.05 mM-1 mM and the detection limit of ∼19.5 µM with correlation coefficient (R) of ∼0.9850.
Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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