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Light and Heat Energy Conversion Materials Lab
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The lab creates new materials that turn light and heat into electricity or fuel.

AboutAbout the lab
Creating new materials from light, water, and matter.
The Light and Heat Energy Conversion Materials Lab creates new materials for light energy conversion and thermoelectric energy conversion.
Drawing on the diverse properties of matter from a materials science perspective, the lab aims for materials that are highly efficient and place a low burden on the environment.
The main targets are photoelectric conversion in solar cells and light-emitting devices, optical device materials with photocatalytic properties, and oxide thermoelectric materials with unusual electron and heat transport.
The research aims to produce materials with new functions that arise from nanostructures.
Key terms
- Thermoelectric conversion
- A mechanism that generates electricity from the temperature difference between the two ends of a material (or, conversely, cools by applying electricity)
- Photocatalyst
- A substance that drives chemical reactions when it receives light. It is used to split water and to break down contaminants
- Nanostructure
- The shape and makeup of a material seen at a scale of about one-millionth of a millimeter
ResearchResearch themes
Drawing fully on the diverse properties of matter from a materials science perspective, the lab develops materials for highly efficient, low-environmental-impact light energy conversion and thermoelectric energy conversion. Its goal is to create materials with new functions that arise from nanostructures.
View More ↗MembersFaculty
The members of the Light and Heat Energy Conversion Materials Lab include faculty, researchers, secretaries, and master's and undergraduate students.As of 2026
- ProfessorSeiichi Watanabe
- Associate ProfessorNoriyuki Okinaka
- Associate ProfessorLihua Zhang
VoicesStudent voices
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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: “Such different zinc oxide - nanoflowers network” Andrey P. Tarasov / CC BY 4.0 (cropped)
- Submerged Photosynthesis of Crystallites: “Ambiance sous-marine en plongée (Ifremer )” Olivier Dugornay / CC BY 4.0 (cropped)
- Related lab (先進材料ハイブリッド工学): “Atomic force microphotography of copper nanoparticles” Dr Anatoly / CC BY 4.0 (cropped)
- Related lab (無機合成化学): “Early Testing of Aerogel and Silicon Detectors for TIGERISS (SVS14979 - -Aerogel-4)” NASA's Scientific Visualization Studio - eMITS/Sophia Roberts, eMITS/Scott Wiessinger, University of Maryland College Park/Jeanette Kazmierczak / Public domain (cropped)
- Related lab (エネルギー材料化学): “Solid oxide electrolyser cell 2x60cell stack” EERE / Public domain (cropped)
- Related lab (界面電子化学): “The army of titanium dioxide nanotubes” Robert Kamalov, Irina Dorosheva, Alexander Vokhmintsev, Ilya Weinstein / CC BY-SA 4.0 (cropped)
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