用于乙醇检测的基于有损模式共振的光纤传感器中的氧化石墨烯
Graphene Oxide in Lossy Mode Resonance-Based Optical Fiber Sensors for Ethanol Detection.
作者信息
Hernaez Miguel, Mayes Andrew G, Melendi-Espina Sonia
机构信息
School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK.
Engineering Division, School of Mathematics, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK.
出版信息
Sensors (Basel). 2017 Dec 27;18(1):58. doi: 10.3390/s18010058.
The influence of graphene oxide (GO) over the features of an optical fiber ethanol sensor based on lossy mode resonances (LMR) has been studied in this work. Four different sensors were built with this aim, each comprising a multimode optical fiber core fragment coated with a SnO₂ thin film. Layer by layer (LbL) coatings made of 1, 2 and 4 bilayers of polyethyleneimine (PEI) and graphene oxide were deposited onto three of these devices and their behavior as aqueous ethanol sensors was characterized and compared with the sensor without GO. The sensors with GO showed much better performance with a maximum sensitivity enhancement of 176% with respect to the sensor without GO. To our knowledge, this is the first time that GO has been used to make an optical fiber sensor based on LMR.
在这项工作中，研究了氧化石墨烯（GO）对基于损耗模式共振（LMR）的光纤乙醇传感器特性的影响。为此构建了四种不同的传感器，每个传感器都包含一个涂有SnO₂薄膜的多模光纤芯片段。将由1、2和4个聚乙烯亚胺（PEI）和氧化石墨烯双层组成的逐层（LbL）涂层沉积在其中三个器件上，并对其作为水性乙醇传感器的行为进行了表征，并与没有GO的传感器进行了比较。带有GO的传感器表现出更好的性能，相对于没有GO的传感器，最大灵敏度提高了176%。据我们所知，这是首次将GO用于制造基于LMR的光纤传感器。
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