Fabrication of Langmuir–Blodgett thin films of porphyrins and investigation on their gas sensing properties

The interaction between the gas sensing and surface morphology properties of LB thin films of porphyrins in terms of the adsorption kinetics

“…This indicates that each thin film has different sensing kinetics parameters. A similar behavior has been observed in previous studies [11,18].…”

“…The maximum amount of shift in resonance frequency differs between approximately 50 and 110 Hz for different porphyrin thin films. This phenomenon was discussed before in another publication [11]. The full kinetic response of porp2 thin film fabricated at a deposition surface pressure of 17.5 mN m À1 is given as inset in Fig.…”

“…The chemical structures of these porphyrins were given in a previous publication [11]. Other chemicals, used in gas sensing experiments, chloroform, toluene and benzene were also purchased from SigmaeAldrich and used without further purification.…”

Interfacially polymerized metalloporphyrin thin films for colorimetric sensing of organic vapors

“…While these interactions are common, they are typically weak, which can be exploited in the generation of a sensor that is both sensitive and reversible in its response, as release of the analytes should occur readily. Finally, others have recently investigated porphyrins and related classes of metal ligand complexes as potential chlorocarbon sensors [27,28]. While the affinity for aliphatic chlorocarbons is quite low, these analytes still are electron rich and have the potential to interact with the metalloporphyrins.…”

Determination of Volatile Organic Compounds by a Novel Polymer Spin-Coated Thin Film and Surface Plasmon Resonance

“…There are a wide range of thin film preparation techniques to prepare solid state thin films of organic materials such as Langmuir-Blodgett deposition (Capan, Tarımcı, and Capan 2010), Langmuir-Schaefer deposition (Spadavecchia et al 2006), self-assembly (Cao et al 2013), and spin coating (Spadavecchia et al 2004;Korczyc et al 2017). …”