Room temperature ammonia sensor using side-polished optical fiber coated with graphene/polyaniline nanocomposite
We developed a highly sensitive side-polished plastic optical fiber coated with chemical synthesized graphene/polyaniline nanocomposite for ammonia gas sensing application. It was found that the optical sensor absorbance spectrum linearly increases with increasing ammonia concentrations. The experim...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
OSA Publishing
2017
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| Online Access: | http://psasir.upm.edu.my/id/eprint/63156/ http://psasir.upm.edu.my/id/eprint/63156/1/Room%20temperature%20ammonia%20sensor%20using.pdf |
| Summary: | We developed a highly sensitive side-polished plastic optical fiber coated with chemical synthesized graphene/polyaniline nanocomposite for ammonia gas sensing application. It was found that the optical sensor absorbance spectrum linearly increases with increasing ammonia concentrations. The experimental results revealed that the side-polished fiber sensor coated with graphene/polyaniline nanocomposite exhibited higher performance than the ones coated with only polyaniline. The proposed sensor demonstrated sensitivity, response and recovery times of 132.8 AU/%, 112 s, and 185 s, respectively, at room temperature. The superior sensing performance of the developed fiber sensor indicates its high efficiency for NH3 gas-sensing applications at room temperature. |
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