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Tsukamoto Lab
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The lab synthesizes ultra-small particles called "quantum-sized materials" and explores their properties.
AboutAbout the lab
Pioneering materials science at the boundary between solids and molecules.
The Tsukamoto Lab studies the synthesis and properties of extremely small chemical substances known as "quantum-sized materials."
Quantum-sized materials are about the size of a cluster of a few to a few dozen atoms, and they have the potential to become the materials of the future.
On the other hand, a major challenge is that it is difficult to synthesize and design them as intended.
From both experimental and theoretical sides, the lab independently develops new synthesis techniques and design theories.
Key terms
- Quantum-sized materials
- A chemical substance whose particles are so small that it is predicted to show properties not seen in ordinary materials
- Clusters
- A particle made up of a few to a few dozen atoms. A type of quantum-sized material
- Degeneracy
- A state in which multiple states available to electrons have the same energy
NewsLab news
A master's student received the Young Best Poster Award from the Nano Society
A master's student received the Fujishima Award from the Department of Applied Chemistry for their master's thesis
The lab was opened to the public at the Komaba Research Campus Open House 2025
Lecturer Tsukamoto received the Yamato Science Award
Paper accepted by Nanoscale Advances
ResearchResearch themes
The lab aims to open up materials science that no one has yet explored, focusing on quantum-sized materials at the boundary between solids and molecules. On the experimental side, it works on precise synthesis methods and on clarifying properties; on the theoretical side, it works on building new theories to predict and design structures.
*Illustrative imagePrecise synthesis using templates
The lab has developed a "template synthesis method" that uses the space inside a polymer capsule as the site of reaction to create clusters with atomic-level precision. It has succeeded in synthesizing multielement alloy clusters containing several mixed metal elements.
*Illustrative imageExploring the properties and functions of tiny particles
The lab investigates the electronic states of the synthesized fine particles, as well as their functions as optical, electrical, magnetic, and catalytic materials. So far, it has created light-emitting functions using alloy clusters and has also discovered high catalytic activity.
*Illustrative imageA periodic table of quantum-sized materials
In collaboration with researchers at Kyoto University, the lab proposes a "higher-order periodic table," based on its own theory, that can classify quantum-sized materials much as the periodic table classifies the elements. It also serves as a clue for finding unknown materials.
*Illustrative imageTheoretical discovery of super-degenerate materials
In collaboration with researchers at Kyoto University, the lab theoretically discovered "super-degenerate materials," which are tetrahedral in shape yet have higher symmetry than a sphere. They are the first chemical substances in which the electronic states are anomalously degenerate.
MembersFaculty
The members of the Tsukamoto Lab consist of faculty, master's students, and academic specialists.As of 2026
- LecturerTakamasa TsukamotoPublications ↗
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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: “TEM image of gold nanoparticles and nanorods” Fionán / CC BY-SA 4.0 (cropped)
- Precise synthesis using templates: “A schematic of a high-entropy alloy nanoparticle” Ivarofl / CC BY-SA 4.0 (cropped)
- Exploring the properties and functions of tiny particles: “Titania supported gold nanocluster” Kronber1 / CC BY-SA 4.0 (cropped)
- A periodic table of quantum-sized materials: “Periodic table HMNS” Ed Uthman, Houston, Texas, USA / CC BY 3.0 (cropped)
- Theoretical discovery of super-degenerate materials: “Raytraced ball and stick model of a tetrahedron” Prateek Karandikar / CC BY-SA 4.0 (cropped)
- Related lab (Yanagida Lab): “Zinc Nanowires ( )” National Institute of Standards and Technology / Public domain (cropped)
- Related lab (Tatsuma Lab): “Rheinisches Landesmuseum Bonn Goldrubingefässe Ehrenfeld 01” Geolina163 / CC BY-SA 4.0 (cropped)
- Related lab (Sunada Lab): “(Cp'3Sm)2(bpy) crystals” Brian N. Long, María J. Beltrán-Leíva, Joseph M. Sperling, Todd N. Poe, Cristian Celis-Barros & Thomas E. Albrecht-Schönzart / CC BY 4.0 (cropped)
- Related lab (Uemura Lab): “Metal Organic Framework (MOF) ( )” National Institute of Standards and Technology / Public domain (cropped)
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