Sensing performance of rGO/phthalocyanine based hybrid at room temperature

Abstract

In present work, we have prepared reduced graphene oxide (rGO) sheets with Hummer's method and decorated them with nanorods of hexa-decafluorinated zinc phthalocyanines (F16ZnPc). Synthesized rGO/F16ZnPc hybrid has been characterized with scanning electron microscopy (SEM) that confirms the successful formation of hybrid. Subsequently, a chemi-resistive sensor has been fabricated by drop casting rGO/F16ZnPc hybrid onto glass substrate and the gas sensing application of the sensor has been tested for gases (NO2, NO, Cl2, H2S, C2H5OH, NH3 and CO). A synergetic effect of rGO/F16ZnPc hybrid is estimated to result in large number of adsorbing sites, which offers efficient Cl2 gas sensing characteristics of fabricated sensor.