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Sone-Chang Lab
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The lab makes micro- and nanomaterials by electrochemistry and applies them to medical devices and catalysts.
AboutAbout the lab
Making micro- and nanomaterials by electrochemistry
The Sone-Chang Lab studies techniques for making micro- and nano-sized materials using electrochemical methods.
Aiming at next-generation high-sensitivity medical devices, the lab works with materials for semiconductor interconnects, MEMS, and wearable devices.
The lab also develops its own evaluation techniques for measuring the functions and mechanical properties of these tiny materials.
In addition, the lab works on electrochemically producing energy conversion catalysts that have low environmental impact and high efficiency.
Key terms
- MEMS
- Machines and sensors so small they are invisible to the eye, made with semiconductor technology.
- supercritical carbon dioxide
- Carbon dioxide at high pressure and temperature, in a state where the boundary between gas and liquid disappears.
- photocatalyst
- A material that drives chemical reactions on its surface when exposed to light.
NewsLab news
A student received an Honorable Mention at the international conference APCOT2026
A master's student received the Outstanding Paper Presentation Award at the Materials Course master's thesis presentation session
A master's student received an award in the English presentation contest at the international conference MRST2025
Three doctoral and master's students received awards at ICGET-TW2025
A doctoral student received a Poster Award at the international symposium on biomedical, dental, and engineering research
ResearchResearch themes
Aiming at next-generation high-sensitivity medical devices, the lab develops techniques for electrochemically making the micro- and nanomaterials that underpin semiconductor interconnects, MEMS, and wearable devices, and for evaluating their functions. The lab also works on research into energy conversion catalysts that have low environmental impact and high efficiency.
*Illustrative imageMaking semiconductor interconnects with supercritical carbon dioxide
The lab developed the supercritical nanoplating method, which carries out electroplating in an emulsion of an electrolyte solution and supercritical carbon dioxide. Because the carbon dioxide absorbs hydrogen bubbles, the method produces uniform, pinhole-free metal films, and it can fill pores 60 nm in diameter with copper without defects.
*Illustrative imageMechanical testing of micro-sized materials
Yield stress rises when materials are made small down to the microscale, so MEMS design requires data measured on small specimens. The lab prepares specimens with a focused ion beam and subjects them to compression, bending, and tension using testing machines it developed itself, to study their deformation behavior.
*Illustrative imageCatalysts made by single-atom metal electrodeposition
A catalyst's behavior changes with particle size, and clusters of just a single atom are expected to show high activity. The lab is developing its own single-atom metal electrodeposition method, which manipulates metal clusters deposited on a conductive polymer at the atomic level.
*Illustrative imageMaking hydrogen with semiconductor photocatalysts
Making hydrogen from sunlight requires photocatalysts that also respond to visible and near-infrared light. Yolk-shell nanostructures of gold and copper sulfide have been shown to have the potential to become photocatalysts that work over a wide range of wavelengths by using localized surface plasmon resonance.
MembersFaculty
The Sone-Chang Lab's members consist of faculty, doctoral, master's, and bachelor's students, and administrative support staff.As of 2026
- ProfessorMasato SonePublications ↗
- Associate ProfessorChang Tso-Fu MarkPublications ↗
- Assistant ProfessorTomoyuki KuriokaPublications ↗
- Assistant ProfessorGen HikosakaPublications ↗
- Project ProfessorHiroki Ishizaki
- Project ProfessorSatoshi Okamoto
- Project ProfessorYung-Jung Hsu
- Project ProfessorKatsuyuki MachidaPublications ↗
- Project ProfessorRandal Lee
- Project ProfessorYasuhiko Watanabe
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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: “Copper Electroplating Timecourse” Richard Wheeler (Zephyris) / CC BY-SA 3.0 (cropped)
- Making semiconductor interconnects with supercritical carbon dioxide: “Technology electroplating copper bubbles )” Jan Helebrant / CC0 (cropped)
- Mechanical testing of micro-sized materials: “MEMS Microcantilever in Resonance” Patrick C. Fletcher / CC BY-SA 3.0 (cropped)
- Catalysts made by single-atom metal electrodeposition: “Nanoflowers” AnaraMolken / CC BY-SA 4.0 (cropped)
- Making hydrogen with semiconductor photocatalysts: “Anatase (titania, TiO2) photocatalyst producing hydrogen” University College London Faculty of Mathematical & Physical Sciences / CC BY 3.0 (cropped)
- Related lab (北本研究室): “Ferrofluid Magnet under glass edit” Gregory F. Maxwell / CC BY-SA 3.0 (cropped)
- Related lab (松下
（伸） ・久保田研究室): “Photoresist spin-coaters at LAAS 0448” Guillaume Paumier (user:guillom) / CC BY-SA 3.0 (cropped) - Related lab (真島・伊澤研究室): “Clean room” Uploaded by Duk 08:45, 16 Feb 2005 (UTC) / Public domain (cropped)
- Related lab (神谷研究室): “Flexible display” U.S. Army RDECOM / CC BY 2.0 (cropped)
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