이황화몰리브덴(MoS2) 코팅된 측면연마 광섬유 기반 습도센서 개발
Humidity Sensor Based on Side-Polished Optical Fiber Coated with Molybdenum Disulfide
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In this study, a humidity sensor was developed by combining a side-polished optical fiber with the molybdenum disulfide (MoS2) nanoparticles. We quantified the change in optical properties due to the interaction of MoS2 and water (H2O) molecules. As the hole carrier concentration related to the amount of H2O increased, the refractive index of MoS2 decreased and the attenuation coefficient increased. Synthesized MoS2 in a Dimethylformamide (DMF) solution as a suspension solvent was coated on the surface of a side-polished optical fiber(SPF). DMF solution makes the sensitivity to humidity decreased over time. Thus, the highest sensitivity can be obtained when coated immediately after MoS2 and DMF were mixed.
Abstract
In this study, a humidity sensor was developed by combining a side-polished optical fiber with the molybdenum disulfide (MoS2) nanoparticles. We quantified the change in optical properties due to the interaction of MoS2 and water (H2O) molecules. As the hole carrier concentration related to the amount of H2O increased, the refractive index of MoS2 decreased and the attenuation coefficient increased. Synthesized MoS2 in a Dimethylformamide (DMF) solution as a suspension solvent was coated on the surface of a side-polished optical fiber(SPF). DMF solution makes the sensitivity to humidity decreased over time. Thus, the highest sensitivity can be obtained when coated immediately after MoS2 and DMF were mixed.
참고문헌 (12)
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