Hanyang University · 工学
Professor Bongyoung Yoo's research lab specializes in the design, synthesis, and application of functional nanomaterials using template-directed electrodeposition and microfabrication techniques. The lab focuses on developing advanced nanowires—such as bismuth antimony telluride superlattices, nickel, iron-based, and magnetic nanowires—with precise control over composition, structure, and morphology for applications in thermoelectrics, spintronics, and biomedical devices. By integrating nanofabrication with materials engineering, the lab advances scalable and cost-effective methods for creating high-performance nanodevices with tailored functionalities. The research also extends into microfabricated drug delivery systems, leveraging precision manufacturing for targeted therapeutic applications.
Figures are computed from collected data and may differ slightly.
Bi2Te3/(Bi0.3Sb0.7)2Te3 superlattice thermoelectric nanowires are synthesized by using a template-directed electrodeposition method. Adjustment of the deposition times and potentials enables precise control over the composition and length of each segment of the nanowires. Characterization of the superlattice nanowires by, amongst others, energy dispersive X-ray analysis (see figure) reveals their periodically varying structure.
Facile, cost-effective, and manufacturable techniques to create single-nanowire based devices with good electrical interconnects is demonstrated by combining template directed electrodeposition, magnetic assembly, and a post-annealing in a reducing environment. Nickel nanowires with a diameter of approximately 30 nm were electrodeposited from low-stress nickel sulfamate baths at room temperature using in-house made anodized alumina as a nanotemplate. After electrodeposition, nanowires were relea
Monodisperse crystalline zero-valent iron, iron-nickel, iron-palladium nanowires were synthesised using template-directed electrodeposition methods. Prior to nanowire fabrication, alumina nanotemplates with controlled pore structure (e.g. pore diameter and porosity) were fabricated by anodising high purity aluminium foil in sulphuric acid. After fabrication of alumina nanotemplates, iron, iron-nickel and iron-palladium nanowires were electrodeposited within the pore structure. The dimensions of
This review is devoted to discussing the application of microfabrication technologies to target challenges encountered in life processes by the development of drug delivery systems. Recently, microfabrication has been largely applied to solve health and pharmaceutical science issues. In particular, fabrication methods along with compatible materials have been successfully designed to produce multifunctional, highly effective drug delivery systems. Microfabrication offers unique tools that can ta
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