In the past decade, eco-friendly, biocompatible, and green materials have been the subject of many economic and scientific projects, and have caused less damage to the environment. Ceramic based electronic devices face the challenge of eco-friendly and recycling issue as well as the route of chicken feather wastes. In order to solve such problem, we develop a biodegradable dielectric film that comprises the composite material from the ceramic Yttrium (III) oxide and keratin. The keratin is a nature protein and was extracted from chicken feather wastes. Our design is tried to establish an eco-friendly dielectric material and can be biodegradable after electronic device lifetime.
A high-k-value Yttrium oxide ceramic and dielectric material is an eco-friendly water-inducement process material. Therefore, due to its high-k-value, non-toxicity, and biocompatibility, Yttrium oxide nanoparticles can be blended into the keratin solution to improve their dielectric properties. In this research, we propose a six-step extraction routes to obtain a keratin material from raw chicken feather wastes. Then, the ceramic Yttrium oxide powder is dissolved into keratin solution. A series of device fabrication as illustrated in Figure 1 is achieved and a thin film transistor is obtained. The dielectric film from the above solution is spin-coated onto silicon substrate. Various concentrations of Yttrium oxide nanoparticles were blended into the keratin solution to decrease the leakage current and improve the depth of the pinholes for the devices.