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Hybrid Photonic Cavity with Metal-Organic Framework Coatings for the Ultra-Sensitive Detection of Volatile Organic Compounds with High Immunity to Humidity

机译:具有金属有机骨架涂层的混合光子腔用于高灵敏度检测对潮湿具有高免疫力的挥发性有机化合物

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摘要

Detection of volatile organic compounds (VOCs) at parts-per-billion (ppb) level is one of the most challenging tasks for miniature gas sensors because of the high requirement on sensitivity and the possible interference from moisture. Herein, for the first time, we present a novel platform based on a hybrid photonic cavity with metal-organic framework (MOF) coatings for VOCs detection. We have fabricated a compact gas sensor with detection limitation ranging from 29 to 99 ppb for various VOCs including styrene, toluene, benzene, propylene and methanol. Compared to the photonic cavity without coating, the MOF-coated solution exhibits a sensitivity enhancement factor up to 1000. The present results have demonstrated great potential of MOF-coated photonic resonators in miniaturized gas sensing applications.
机译:对于微型气体传感器,以十亿分之几(ppb)的水平检测挥发性有机化合物(VOC)是最具挑战性的任务之一,因为对灵敏度的要求很高,并且可能受到水分的干扰。在此,我们首次提出了一种基于混合光子腔的新型平台,该腔具有金属有机骨架(MOF)涂层,用于VOC检测。我们已经制造出一种紧凑型气体传感器,对于各种VOC包括苯乙烯,甲苯,苯,丙烯和甲醇,其检测极限范围为29到99 ppb。与没有涂层的光子腔相比,MOF涂层的溶液显示出高达1000的灵敏度增强系数。目前的结果表明,在微型气体传感应用中,MOF涂层的光子谐振器具有巨大的潜力。

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