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Energy Conversion Mechanisms Lab
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The lab uses plasmas and particle beams to give material surfaces and interfaces higher functionality.
AboutAbout the lab
Enhancing surface and interface functions through plasma–material interactions
The Energy Conversion Mechanisms Lab (Setsuhara Lab) studies the phenomena that occur between materials and processing energy sources such as plasmas and particle beams.
It pursues the fundamental science needed to enhance and finely control the functions of material surfaces and interfaces, with the aim of advancing joining science.
Based on its original plasma generation and control technologies, the lab conducts research on low-temperature, low-damage, high-quality material processes and on joining dissimilar materials such as organic materials and metals.
The lab belongs to the Joining and Welding Research Institute, Osaka University, and is a cooperating laboratory of the Materials Science Course in the Division of Materials and Manufacturing Science, Graduate School of Engineering.
Key terms
- Processing energy source
- Something that supplies energy to a material when it is processed. In this lab, plasmas and particle beams
- Surfaces and interfaces
- A collective term for the surface of a material and the interface where different materials meet
- Dissimilar material joining
- A technology for joining different types of materials, such as an organic material and a metal
ResearchResearch themes
The Energy Conversion Mechanisms Lab (Setsuhara Lab) investigates the relationship between materials and processing energy sources such as plasmas and particle beams, and pursues the fundamentals needed to enhance and control the functions of material surfaces and interfaces. Building on this, it aims to create new processing energy sources and process control methods and to advance joining science.
*Illustrative imageInteraction between processing energy sources and materials
The lab studies how energy is converted from processing energy sources such as plasmas and particle beams into materials, and the mechanisms of the resulting interactions. It pursues the fundamental science for enhancing and finely controlling the functions of material surfaces and interfaces, and also works on creating new processing energy sources and process control methods, along with their diagnostics and evaluation.
*Illustrative imageLow-temperature processes and joining of dissimilar materials
Based on its original plasma generation and control technologies, the lab studies low-temperature, low-damage, high-quality material processes, with large-area processes such as next-generation flat-panel displays and solar cells in mind. It also works on joining dissimilar materials such as organic materials and metals using atmospheric-pressure non-equilibrium plasma, creating functional materials with controlled nanostructures, and plasma-catalytic reaction systems for a decarbonized society.
MembersFaculty
The lab's members are faculty, a visiting professor, and master's students.As of 2026
- ProfessorYuichi Setsuhara
- Associate ProfessorKosuke Takenaka
- Assistant ProfessorSusumu Toko
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Plasma directed” Volker urban / Public domain (cropped)
- Interaction between processing energy sources and materials: “Processing” Dr James Curran / CC BY 2.5 (cropped)
- Low-temperature processes and joining of dissimilar materials: “Hexagon solar cells” Wikideas1 / CC0 (cropped)
- Related lab (Energy Control Lab): “Energy Arc (central electrode of a Plasma Lamp)” Blaise Frazier aka PiccoloNamek / CC BY-SA 3.0 (cropped)
- Related lab (Microjoining Lab): “Electronic Printed Circuit Board” JayHand / CC BY-SA 3.0 (cropped)
- Related lab (Laser Processing Lab): “Laser welding of the pipeline” Barbara Nasiłowska / CC BY 4.0 (cropped)
- Related lab (Compositing Mechanisms Lab): “Composite 3d” PerOX / Public domain (cropped)
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