Found 27 results

Filters: author is Sayama
2007
Reverse Electron Transfer from TiO2 to I2 in Nanocrystalline TiO2 Film Electrodes with Coadsorbed Bipyridine and Biquinoline Ruthenium Complexes, Yanagida, M.; Miyamoto, K.; Sayama, K.; Kasuga, K.; Kurashige, M.; Abe, Y.; Sugihara, H. , J. Phys. Chem. C, Volume 111, Issue 1, p.201-209, (2007)
2006
Electronic-Insulating Coating of CaCO3 on TiO2 Electrode in Dye-Sensitized Solar Cells: Improvement of Ele, Wang, Z.-S.; Yanagida, M.; Sayama, K.; Sugihara, H. , Chem. Mater., June 13, 2006, Volume 18, Issue 12, p.2912-2916, (2006)
Electronic-insulating coating of CaCO3 on TiO2 electrode in dye-sensitized solar cells: Improvement of electron lifetime and ef, Wang ZS,; Yanagida M,; Sayama K,; Sugihara H , Chem, Mater., Volume 18 (12):, p.2912-2916, (2006)
Reverse electron transfer at the interface of semiconductor film in dye-sensitized solar cells, Yanagida M,; Sayama K,; Kasuga K,; Kurashige M,; Sugihara H , J. Photochem. Photobiol., A Chemistry,, Volume 182 (3):, p.288-295 Sp. Iss. SI,, (2006)
2005
Efficient Eosin Y Dye-Sensitized Solar Cell Containing Br<sup>-</sup>/Br<sub>3</sub><sup>-</sup> Electrolyte, Wang, Z.-S.; Sayama, K.; Sugihara, H. , J. Phys. Chem.B., December 1, 2005, Volume 109, Issue 47, p.22449-22455, (2005)
Influence of electrolyte on the photovoltaic performance of a dye-sensitized TiO2 solar cell based on a Ru(II) terpyridyl comple, Hara, K.,; Nishikawa, T.,; Kurashige, M.,; Kawauchi, H.,; Kashima, T.,; Sayama, K.,; Alka, K.,; Arakawa, H. , Solar Energy Mater. Solar Cells, Volume 85 (1):, p.21-30, (2005)
2004
Effect of Additives on the Photovoltaic Performance of Coumarin-Dye-Sensitized Nanocrystalline TiO2 Solar Cells, Hara, K.; Dan-oh, Y.; Kasada, C.; Ohga, Y.; Shinpo, A.; Suga, S.; Sayama, K.; Arakawa, H. , Langmuir, May 11, 2004, Volume 20, Issue 10, p.4205-4210, (2004)
2003
Molecular Design of Coumarin Dyes for Efficient Dye-Sensitized Solar Cells, Hara, K.; Sato, T.; Katoh, R.; Furube, A.; Ohga, Y.; Shinpo, A.; Suga, S.; Sayama, K.; Sugihara, H.; Arakawa, H. , J. Phys. Chem. B., January 16, 2003, Volume 107, Issue 2, p.597-606, (2003)
Design of new coumarin dyes having thiophene moieties for highly efficient organic-dye-sensitized solar cells, Kohjiro Hara; Mitsuhiko Kurashige; Yasufumi Dan-oh; Chiaki Kasada; Akira Shinpo; Sadaharu Suga; Kazuhiro Sayama; Hironori Arakawa , New J. Chem., Volume 27, p.783 - 785,, (2003)
Dye-sensitized nanocrystalline TiO2 solar cells based on novel coumarin dyes, Hara, K.,; Tachibana, Y.,; Ohga, Y.,; Shinpo, A.,; Suga , S.,; Sayama, K.,; Sugihara, H.,; Arakawa, H. , Solar Energy Mater. Solar Cells,, Volume 77 (1), p.89-103, (2003)
Novel and efficient organic liquid electrolytes for dye-sensitized solar cells based on a Ru(II) terpyridyl complex photosensiti, Hara, K.,; Nishikawa, T.,; Sayama, K.,; Aika, K.,; Arakawa, H. , Chemistry Letters,, Volume 32 (11), p.1014-1015, (2003)
Novel polyene dyes for highly efficient dye-sensitized solar cells, Kohjiro Hara; Mitsuhiko Kurashige; Shunichiro Ito; Akira Shinpo; Sadaharu Suga, Kazuhiro Sayama and Hironori Arakawa , Chem. Commun., p.252 - 253,, (2003)
2002
Quantitative Analysis of Light-Harvesting Efficiency and Electron-Transfer Yield in Ruthenium-Dye-Sensitized Nanocrystalline TiO, Tachibana, Y.; Hara, K.; Sayama, K.; Arakawa, H. , Chem. Mater., June 17, 2002, Volume 14, Issue 6, p.2527-2535, (2002)
Effect of the Ligand Structure on the Efficiency of Electron Injection from Excited Ru-Phenanthroline Complexes to Nanocrystalli, Hara, K.; Horiuchi, H.; Katoh, R.; Singh, L.P.; Sugihara, H.; Sayama, K.; Murata, S.; Tachiya, M.; Arakawa, H. , J. Phys. Chem. B., January 17, 2002, Volume 106, Issue 2, p.374-379, (2002)
Effect of the Ligand Structure on the Efficiency of Electron Injection from Excited Ru-Phenanthroline Complexes to Nanocrystalli, Hara, K.; Horiuchi, H.; Katoh, R.; Singh, L.P.; Sugihara, H.; Sayama, K.; Murata, S.; Tachiya, M.; Arakawa, H. , J. Phys. Chem. B., January 17, 2002, Volume 106, Issue 2, p.374-379, (2002)
Photoelectrochemical Properties of J Aggregates of Benzothiazole Merocyanine Dyes on a Nanostructured TiO2 Film, Sayama, K.; Tsukagoshi, S.; Hara, K.; Ohga, Y.; Shinpou, A.; Abe, Y.; Suga, S.; Arakawa, H. , J. Phys. Chem. B., February 14, 200, Volume 106, Issue 6, p.1363-1371, (2002)
Investigations on anodic photocurrent loss processes in dye sensitized solar cells: comparison between nanocrystalline SnO2 and, Tachibana, Y.,; Hara, K.,; Takano, S.,; Sayama, K.,; Arakawa, H. , Chem. Phys. Lett., Volume 364 (3-4):, p.297-302, (2002)
2001
Dye-Sensitized Nanocrystalline TiO2 Solar Cells Based on Ruthenium(II) Phenanthroline Complex Photosensitizers, Hara, K.; Sugihara, H.; Tachibana, Y.; Islam, A.; Yanagida, M.; Sayama, K.; Arakawa, H.; Fujihashi, G.; Horiguchi, T.; Kinoshita, T. , Langmuir, September 18, 20, Volume 17, Issue 19, p.5992-5999, (2001)
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; Yasuyo Ohga; Akira Shinpo; Sadaharu Sug , J. Chem. Soc. Chem. Commun., p.569 - 570,, (2001)
Influence of electrolytes on the photovoltaic performance of organic dye-sensitized nanocrystalline TiO2 solar cells, Hara, K.,; Horiguchi,T.,; Kinoshita, T.,; Sayama, K.,; Arakawa, H. , Solar Energy Mater. Solar Cells, Volume 70 (2):, p.151-161, (2001)
New Ru(II) phenanthroline complex photo sensitizers having different number of carboxyl groups for dye-sensitized solar cells, Hara, K.,; Sugihara, H.,; Singh, L.P.,; Islam, A.,; Katoh, R.,; Yanagida, M.,; Sayama, K.,; Murata, S.,; Arakawa, H. , J. Photochem. Photobiol. A (Chem)., Volume 145 (1-2):, p.117-122 Sp. Iss. SI,, (2001)
Significant effects of the distance between the cyanine dye skeleton and the semiconductor surface on the photoelectrochemical p, Kazuhiro Sayama; Kohjiro Hara; Yasuyo Ohga; Akira Shinpou; Sadaharu Suga; Hironori Arakawa , New J. Chem., Volume 25, p.200 - 202,, (2001)
2000
Highly efficient photon-to-electron conversion with mercurochrome-sensitized nanoporous oxide semiconductor solar cells, Hara, K.,; Horiguchi, T.,; Kinoshita, T.,; Sayama, K.,; Sugihara, H.,; Arakawa, H. , Solar Energy Mater. Solar Cells, Volume 64 (2):, p.115-134, (2000)
Highly efficient photon-to-electron conversion of mercurochrome-sensitized nanoporous ZnO solar cells, Hara, K.,; Horiguchi, T.,; Kinoshita, T.,; Sayama, K.,; Sugihara, H.,; Arakawa, H. , Chem. Lett., Volume (4):, p.316-317, (2000)
1999
Attachment of an organic dye on a TiO2 substrate in supercritical CO2: Application to a solar cell, Bando, K.K.,; Mitsuzuka, Y.,; Sugino, M.,; Sugihara, H.,; Sayama, K.,; Arakawa, H. , Chem. Lett, Volume (9):, p.853-854 SEP, (1999)
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