Japanese

Research

Materials composed of abundant chemical elements are ordinary non-toxic and friendly to biological organs. I think that this is because we are unavoidably exposed to these elements from the very beginning of the birth of life. We should also note that these abundant chemical elements are widely absorbed in our body and they work as indispensable ones. Our goal is to fabricate new funtional photonics and spintronics devices using those materials. We have three main research projects, that is, thin-film crystalline solar cells using Si-based semiconductor BaSi2, Arsen-free infrared photodetectors using semiconducting β-FeSi2, and spin sources using ferromagnetic Fe3Si and γ'-Fe4N. These projects include a wide range of subjects ranging from thin-film growth by molecular-beam epitaxy, sputtering and organometallic vapor phase epitaxy, to evaluation of basic physical properties of grown films, device fabrication using photolithography, and first-principles calculations. So please join us.

  1. Thin-film crystalline solar cells using Ba1-xMxSi2(M=Sr,Mg,....) on glass

  2. IV group semiconductor thin films on glass or plastic substrates

  3. Spin source using ferromagnetic γ'-(Fe4N) and (Fe3Si) on Si

  4. As-free infrared photodetector using β-FeSi2 on Si


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