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Katase Lab
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The lab creates new materials that control heat and electricity and applies them to devices.
AboutAbout the lab
Opening up a new continent of materials.
The Katase Lab studies functional materials for heat, electrons, and light that will support next-generation energy and electronics.
Through original materials design, the lab creates new materials and aims to achieve breakthroughs in the performance of thermoelectric devices, optical sensors, thin-film transistors, and superconducting devices.
Grounded in solid-state chemistry and materials science, the lab covers the whole process in an integrated way, from designing crystal and electronic structures to synthesizing materials and applying them to devices.
Aiming to 'contribute to solving social issues with new materials,' the lab pursues themes such as energy saving and waste heat utilization.
Key terms
- Thermoelectric conversion
- The ability to extract electricity from a temperature difference. It can turn discarded heat into electricity.
- Superconductivity
- A phenomenon in which electrical resistance becomes zero when a material is cooled below a certain temperature. It allows large currents to flow without loss.
- Band gap
- The range of energy that electrons cannot occupy in a semiconductor. The larger it is, the better suited the material is to devices that handle high power.
NewsLab news
A master's student won the Outstanding Presentation Award from the Thermoelectrics Society of Japan
An undergraduate student won an Outstanding Presentation Award for bachelor's theses
A paper on thermoelectric conversion materials containing atomic layers was published in J. Mater. Chem. A
A student won the Outstanding Poster Award at the New Functional Materials Research Meeting 2026
The lab held a graduate school admissions information session with research presentations, a consultation session, and a lab tour
ResearchResearch themes
With the vision of 'opening up a new continent of materials,' the lab develops functional materials for heat, electrons, and light that will underpin next-generation energy and electronics. It handles everything from materials design and synthesis to device applications.
*Illustrative imageMaterials for power semiconductors and optical sensors
For power devices that control high power efficiently and for highly sensitive optical sensors, the lab creates new semiconductors using materials design based on first-principles calculations and thin-film growth techniques. Its work includes thin-film growth of rutile-type GeO2, which has a band gap of 4.7 eV.
*Illustrative imageSuperconducting materials for power transmission
Superconductors, which have zero electrical resistance, are expected to serve as foundational technologies for transporting large currents, next-generation power networks, and fusion power generation. The lab searches for new superconducting materials that follow iron-based superconductors, and works on turning them into thin films and devices.
*Illustrative imageMaterials that generate electricity from waste heat
The lab designs thermoelectric conversion materials, which turn discarded heat into electricity, by combining computational science and experiments. It takes on the challenge of achieving high performance with environmentally friendly elements, without relying on rare and toxic heavy elements.
*Illustrative imageMaterials that control everything from thermal insulation to heat dissipation
The lab has created new materials in which the dimensionality of the crystal structure changes, and has demonstrated thermal control materials that switch between thermal insulation and heat dissipation depending on temperature. Recently, it has also been developing ultrahigh thermal conductivity materials that dissipate heat efficiently.
MembersFaculty
The Katase Lab consists of faculty members, postdoctoral researchers, secretaries, technical staff, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorTakayoshi KatasePublications ↗
- Assistant ProfessorHiroto ArimaPublications ↗
- Program-Specific Assistant ProfessorHE XINYI
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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: “Wire for ITER superconducting magnets ( )” Oak Ridge National Laboratory / CC BY 2.0 (cropped)
- Materials for power semiconductors and optical sensors: “A semiconductor wafer on a dicing (blue) tape. Few chips (dies) from the wafer have already been picked up (removed) for further manufacturing” Khpsoi / CC BY-SA 4.0 (cropped)
- Superconducting materials for power transmission: “Levitation superconductivity” Julien Bobroff (user:Jubobroff), Frederic Bouquet (user:Fbouquet), LPS, Orsay, France / CC BY-SA 3.0 (cropped)
- Materials that generate electricity from waste heat: “Peltier element detail” Michael Bemmerl / CC BY 3.0 de (cropped)
- Materials that control everything from thermal insulation to heat dissipation: “LERF Timisoara RO night IR 1” Mihai-Cosmin Pascariu / CC BY-SA 4.0 (cropped)
- Related lab (松下祥子研究室): “Krafla geothermal power plant” Hansueli Krapf / CC BY-SA 3.0 (cropped)
- Related lab (神谷研究室): “Flexible display” U.S. Army RDECOM / CC BY 2.0 (cropped)
- Related lab (平松研究室): “InGaN crystal SEM+CL” FDominec / CC BY 4.0 (cropped)
- Related lab
(早水研究室): “Graphen” AlexanderAlUS / CC BY-SA 3.0 (cropped)
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