Title enhancement of the sensitivity of a volatile organic compounds MOF-sensor by means of its structure

Trabajo presentado en la Eurosensors 2017 Conference. París, 3–6 de septiembre de 2017. In this paper, we experimentally compare several core structures of Microstructured Optical Fibers (MOFs) for low-finesse Fabry-Pérot (FP) sensors. These sensors are designed for Volatile Organic Compounds (VOCs) measurements. We deposit Indium Tin Oxide (ITO) thin films by sputtering on the MOFs and different optical phase responses of the FP were measured for saturated atmospheres of ethanol. The sensitivity of the developed sensors is demonstrated to depend on the geometry and the dimensions of the MOF-cores. The sensors show recovery times under 100 s and the baselines are fully recovered after exposure to VOC. This work was supported by the research grant TEC2016-79367-C2-2-R and TEC 2016-76021-C2-1-R (AEI/FEDER, UE) as well as Public University of Navarre program PhD grants.