Fabrication, analysis and characterization of CCTS based device using interdigitated electrodes for bioenergy applications

Green nanotechnology is an emerging technology that uses nanomaterials to enhance sustainability by using cost-effective and environment-friendly lab-on-a-chip devices capable of analyzing different types of biomolecules and this will promote the use of interdigitated electrodes (IDEs) as the primary source of biosensing, however, further development is needed to achieve the economically feasible large-scale production of value-added devices. In this work, Cu
₂
CdSnS
₄
(CCTS) nanostructures have been synthesized using ultrasonic and deposited on Si/SiO
₂
substrate by using sol-gel method and under annealing temperature; 400 °C. Optical properties of CCTS were explored using Ultraviolet-visible spectroscopy. Silver (Ag) IDEs have been fabricated as a metal contact on Si/SiO
₂
/CCTS substrate using a physical vapor deposition and hard mask. Electrical properties of the fabricated IDEs are further evaluated as a function of voltage and frequency. Our device requires simple equipment's and skills to fabricate, and it is suitable for use in handheld portable devices. It has many features such as low cost, low-power consumption, rapid response, real-time monitoring and label-free detection. The proposed IDEs in this study can be used in subsequent studies to develop a biological sensor based on a non-toxic material capable of detecting different types of biomolecules.