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Yasui Lab
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The lab uses new ceramics to create materials that control electricity, as well as batteries.
AboutAbout the lab
New ceramics that control electricity.
The Yasui Lab studies ceramic materials that control electricity and new solid-state secondary batteries.
Ferroelectrics and piezoelectrics are materials widely used in electronic devices such as memory, capacitors, and sensors.
The lab makes high-quality thin films to search for materials never seen before, and is also working to replace lead-containing materials with lead-free ones.
For batteries, the lab develops new solid oxide-based electrolytes that can be handled in air, aiming for safe all-solid-state batteries.
Key terms
- Ferroelectric
- A material that has an electric polarization even without applied voltage, and whose direction can be reversed by an electric field
- Piezoelectric
- A material that generates voltage when force is applied to it, and changes shape when voltage is applied
- All-solid-state battery
- A battery in which even the electrolyte is solid. It uses no flammable liquid, so it is highly safe
NewsLab news
Now accepting inquiries from students interested in joining the lab
A doctoral student won the Excellence Award at the Autumn Symposium of the Ceramic Society of Japan
A joint research paper was accepted by Advanced Physics Research
A doctoral student won a Poster Award at the Japan-China Meeting on Ferroelectrics
A joint research paper was accepted by Adv. Funct. Mater.
ResearchResearch themes
The Yasui Lab's research rests on two pillars: ferroelectric, piezoelectric, dielectric, and multiferroic materials, and new solid-state secondary batteries. Both are ceramic materials, and finding materials that have not existed before leads to higher-performance devices and safer batteries.
*Illustrative imageMaterials That Control Electricity
Ferroelectrics are materials whose direction of electric polarization reverses when an electric field is applied, and they are the main materials used in memory and capacitors. The lab makes high-quality thin films to search for new materials, and works to replace lead-containing materials with lead-free ones.
*Illustrative imageSafe All-Solid-State Batteries
The lab works on developing materials that fundamentally speed up charging, and has succeeded in developing a material that can be charged to 50% in 36 seconds and to 70% in 72 seconds. It has also developed a new solid oxide-based electrolyte that can be handled in air and with water, aiming for an all-solid-state battery that contains nothing flammable.
MembersFaculty
The Yasui Lab's members consist of faculty, doctoral, master's, and undergraduate students, joint researchers, and technical support staff.As of 2024
- Associate ProfessorShintaro Yasui
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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: “Ceramic fracture” Mtbusca / CC BY 4.0 (cropped)
- Materials That Control Electricity: “MLCC cross section” TubeTimeUS / CC BY-SA 4.0 (cropped)
- Safe All-Solid-State Batteries: “Coin-cells” Gerhard H Wrodnigg / CC BY-SA 2.5 (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 (松田研究室): “Au sputtering light” GcG(jawp) / Public domain (cropped)
- Related lab (東研究室): “Aust.-Synchrotron-Interior-Panorama” jjron / CC BY-SA 3.0 (cropped)
- Related lab (吉田研究室): “Silicon carbide mirror subjected to thermal–vacuum testing ESA377848” European Space Agency / CC BY-SA 3.0 igo (cropped)
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