Last update : 20.05.19

1. Printed Electronics

Recently, as the interest in the production of fine patterns has increased, printing technology is one of the most popular research topics to apply in many fields. In our lab, we are focusing on electrohydrodynamic (EHD) jet printing, which uses electrostatic forces to draw micro patterns smaller than actual nozzles. Using EHD printing, we can draw not only the line but also the drop on demand (DOD) pattern or complex patterns. We are working on printing and optimizing the conditions for metal or other different materials for fine patterns. EHD technology is a basic study in the overall field (printable energy conversion/storage device etc.) of our experiment. In addition, printing is used not only in experimental research but also in industrial microstructure printing and display processes.

2. Printable Energy Conversion/Storage Device (e.g. Fuel Cell, Lithium-ion Batteries)

Energy conversion/stroage device is important application in terms of our daily life as a advance of Electrical Viechle (EV) and Internet of Things (IoTs). The conventional fabrication technique is not efficient and has many points to be improved. We have our own various printing technique to fabricate unique design depending on each purpose/target. Also, we are still working on developing the new printable fabrication technique. Based on we have applied our technique in fabrication process of Energy conversion device (Solid Oxide Fuel Cells (SOFCs)) and Energy storage device (Superacpacitors, Lithium-ion Batteries (LiBs)). The result show that we can increase the efficiency of fabrication process and also enhnace the power efficiency. We still working on how we can enhance the power efficiency of the device with our solution-based fabrication technique.

3. Micro/Nano-Fluidics (including Multiphysics)

The fluid in micro-/nano-scale often has been showing interesting phenomena which is not seen in macro scale. In many applications, the fluid acts on various Multi-physical environment in order to be controlled as user's purpose. The fluid under the Multi-physical environment also often shows interesting abnormal behaviors. So, it is necessary to understand somewhat complex and interesting phenomena in order to control it well depending on various target applications. For those reasons, we now studying vaious interesting fluid-dynamics phenomena under Multiphysics in micro-/nano-scale.

4. Biomimetic Fluid-Structure Interaction (FSI)

Fluid-structure interaction (FSI) has been used not only in mechanical engineering but also across industries such as energy and architecture. FSI is a multi-physics bond between the laws describing fluid mechanics and structural mechanics. This phenomenon is characterized by the interaction (stable or vibrating) between the deformed or moving structure and the surrounding or internal fluid flow, and you can also expect the desired output by simulating elements in nature. It requires a fairly high level of academic understanding because it requires a combination of complex elements. You can expect interesting phenomena by taking good control of various and complex elements. For this reason, we are working on an interesting FSI.