The University of Osaka · Energy
후지츠카 마모루 교수의 연구실은 광촉매 및 태양 에너지 변환 분야에서 핵심적인 연구를 수행하고 있습니다. 주로 페로브스카이트, 블랙 흑연 등 2차원 나노소재를 활용한 광전기적 반응 메커니즘과 전하 분리 효율 향상을 중심으로 연구를 전개하고 있으며, 특히 자외선에서 근적외선까지 넓은 스펙트럼을 흡수하는 반도체 광촉매의 개발에 초점을 맞추고 있습니다. 또한, 전자 수명 연장과 산소 및 수소 발생 반응의 촉매적 활성화를 위한 원자 수준의 도핑 전략도 연구하고 있습니다.
Figures are computed from collected data and may differ slightly.
Photoinduced charge separation and recombination processes in a tetrathiophene−C60 dyad molecule (4T-C60) in various solvents were investigated by observing transient absorption spectra in the near-IR region. In polar solvents such as tetrahydrofuran and benzonitrile, charge separation occurred at a rate on the order of 1010 s-1, which decreased down to the order of 109 s-1 in moderately polar solvents. In nonpolar toluene, charge separation was not observed. The quantum yields for the charge se
Wide absorption from the ultraviolet (UV) to near-infrared (NIR) region and enhanced charge separation are two main requirements for promising semiconductor photocatalysts. Here, we studied visible–NIR-driven photocatalytic hydrogen evolution over black phosphorus nanosheets/TiO2 mesocrystals loaded with a Pt heterostructure (BP NS/Pt (3 wt %)/TMC ). BP NS/Pt (3 wt %)/TMC can harvest photons from UV to NIR and simultaneously has enhanced charge separation to increase the generation of electrons
Doping Ni atoms can trigger the HER activity of inert S atoms on the 2D ZnIn<sub>2</sub>S<sub>4</sub> surface and prolong the electron lifetime.
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