Kazuhiro Sayama

Direct splitting of water under visible light irradiation with an oxide semiconductor photocatalyst

Zhigang Zou, Jinhua Ye, Kazuhiro Sayama et al. · Nature · 2001 · 3.1K citations

Visible Light Irradiation, Engineering, Photochemistry +9

Molecular Design of Coumarin Dyes for Efficient Dye-Sensitized Solar Cells

Kohjiro Hara, Tadatake Sato, Ryuzi Katoh et al. · The Journal of Physical Chemistry B · 2002 · 1.1K citations

Engineering, Inorganic Photochemistry, Organic Solar Cell +16

Design of new coumarin dyes having thiophene moieties for highly efficient organic-dye-sensitized solar cells

Kohjiro Hara, Mitsuhiko Kurashige, Yasufumi Dan‐oh et al. · New Journal of Chemistry · 2003 · 645 citations

Engineering, Inorganic Photochemistry, Energy Conversion +17

A coumarin-derivative dye sensitized nanocrystalline TiO2 solar cell having a high solar-energy conversion efficiency up to 5.6%

Kohjiro Hara, Kazuhiro Sayama, Hironori Arakawa et al. · Chemical Communications · 2001 · 599 citations

Materials Science, Engineering, Photochemistry +15

Photoelectrochemical Decomposition of Water into H₂ and O₂ on Porous BiVO₄ Thin-Film Electrodes under Visible Light and Significant Effect of Ag Ion Treatment

Kazuhiro Sayama, Atsushi Nomura, Takeo Arai et al. · The Journal of Physical Chemistry B · 2006 · 525 citations

Visible Light, Photoelectrochemical Decomposition, Engineering +17