Volatile electrical sensing

In summary, the process of transfer from water to the atmosphere can be expressed as being controlled by the sum of a series of resistances in an electrical sense, as introduced above. When undertaking environmental volatilization calculations, it is important to determine the relative magnitudes of these resistance terms in order that the dominant resistance be identified and included. In many cases one resistance dominates the process, which can lead to economies of effort so that resistances which are known to be negligible can be ignored. 

Because of their electrical, optical, and redox properties as well as the thermal and chemical stability, the Pcs also have been tried in the detection of volatile organic compounds and poisonous gases, which is very important for environment and human health. In the past decades, the possible applications of Pc thin film as sensor for atmospheric gaseous pollutants have been extensively studied [73, 74], Langmuir-Blodgett films of some multinuclear and multidouble-decker lutetium Pcs have also been used for those measurements [75,76], More details about conductivity and sensing properties of Pcs can be found elsewhere [77,78]. 

Fig.3 Schematic diagram of experimental-setup for volatile organic vapor sensing technique based electrical properties...

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