Highly Sensitive Capacitive Cell Based on a Novel CuTsPc-TiO2 Nanocomposite Electrolytic Solution for Low-Temperature Sensing Application

Publication date: Available online 23 February 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Shahino Mah Abdullah, Saqib Rafique, Khairus Syifa Hamdan, Nur Adilah Roslan, Lijie Li, Khaulah SulaimanAbstractThis work demonstrates a highly efficient electrochemical cell based on the hybrid nanofluid of titanium dioxide (TiO2) nanoparticles dispersed in a water-based copper (II) phthalocyanine-tetrasulfonic acid tetrasodium salt (CuTsPc) solution. A chemical cell of ITO/nanofluid/ITO has been fabricated to study the effect of temperature variations towards its capacitance and resistance. The resultant device possessed capacitive sensing mechanism, and the synergistic hybridization of the two different sensing elements lead to the superior performance as compared to the single CuTsPc based device. The hybrid device outperformed the pristine CuTsPc based device in terms of sensitivity, stability, linearity, response/recovery and possessed narrow hysteresis loop.Graphical abstract

Source: Sensors and Actuators A: Physical - February 23, 2019 Category: Physics Source Type: research