Skip to content

Home Search Authors Pakistan News Saved

SciRah

SciRah does not host or store research papers. Results come live from free, official scholarly APIs, and every paper links back to its original source.

Data sources

OpenAlex
Semantic Scholar
Crossref
CORE
arXiv
PubMed

Privacy policy Terms of service

H. Arakawa · SciRah

Researcher profile · Semantic Scholar

H. Arakawa

Share profile

H. Arakawa — researcher profile on SciRah

h-index: 77
Works: 327
Citations: 26K

Most-cited papers

Significant influence of TiO2 photoelectrode morphology on the energy conversion efficiency of N719 dye-sensitized solar cell
Zhong-Sheng Wang, H. Kawauchi, T. Kashima, H. Arakawa
20041,029 citations
Semantic Scholar
Efficiencies of Electron Injection from Excited N3 Dye into Nanocrystalline Semiconductor (ZrO2, TiO2, ZnO, Nb2O5, SnO2, In2O3) Films
R. Katoh, A. Furube, T. Yoshihara, K. Hara +5 more
2004560 citations
Semantic Scholar
Novel Conjugated Organic Dyes for Efficient Dye‐Sensitized Solar Cells
K. Hara, T. Sato, R. Katoh, A. Furube +7 more
2005379 citations
Semantic Scholar
Effect of additives on the photovoltaic performance of coumarin-dye-sensitized nanocrystalline TiO2 solar cells.
K. Hara, Y. Dan-oh, C. Kasada, Yasuyo Ohga +4 more
2004Langmuir376 citations
Semantic Scholar
Significant efficiency improvement of the black dye-sensitized solar cell through protonation of TiO2 films.
Zhong-Sheng Wang, T. Yamaguchi, H. Sugihara, H. Arakawa
2005Langmuir317 citations
Semantic Scholar
Photophysical and (photo)electrochemical properties of a coumarin dye.
Zhong-Sheng Wang, K. Hara, Y. Dan-oh, C. Kasada +4 more
2005Journal of Physical Chemistry B283 citations
Semantic Scholar
Highly efficient plastic-substrate dye-sensitized solar cells with validated conversion efficiency of 7.6%
T. Yamaguchi, N. Tobe, Daisuke Matsumoto, Takuma Nagai +1 more
2010259 citations
Semantic Scholar
Highly efficient plastic substrate dye-sensitized solar cells using a compression method for preparation of TiO(2) photoelectrodes.
T. Yamaguchi, N. Tobe, Daisuke Matsumoto, H. Arakawa
2007Chemical Communications173 citations
Semantic Scholar
Kinetics and mechanism of electron injection and charge recombination in dye-sensitized nanocrystalline semiconductors
R. Katoh, A. Furube, A. Barzykin, H. Arakawa +1 more
2004165 citations
Semantic Scholar
Highly efficient dye-sensitized solar cells composed of mesoporous titanium dioxide
Mingdeng Wei, Y. Konishi, Hao-Shen Zhou, M. Yanagida +2 more
2006158 citations
Semantic Scholar
Half-Sandwich Complexes with 4,7-Dihydroxy-1,10-phenanthroline: Water-Soluble, Highly Efficient Catalysts for Hydrogenation of Bicarbonate Attributable to the Generation of an Oxyanion on the Catalyst Ligand
Y. Himeda, Nobuko Onozawa-Komatsuzaki, H. Sugihara, H. Arakawa +1 more
2004134 citations
Semantic Scholar
Synthesis of single-crystal manganese dioxide nanowires by a soft chemical process
Mingdeng Wei, Y. Konishi, Hao-Shen Zhou, H. Sugihara +1 more
2005Nanotechnology105 citations Open access
Semantic Scholar
Significant improvement in the conversion efficiency of black-dye-based dye -sensitized solar cells by cosensitization with organic dye
Hironobu Ozawa, R. Shimizu, H. Arakawa
2012104 citations
Semantic Scholar
Lithium ion effect on electron injection from a photoexcited coumarin derivative into a TiO2 nanocrystalline film investigated by visible-to-IR ultrafast spectroscopy.
A. Furube, R. Katoh, K. Hara, Tadatake Sato +3 more
2005Journal of Physical Chemistry B101 citations
Semantic Scholar
Ultrafast Direct and Indirect Electron-Injection Processes in a Photoexcited Dye-Sensitized Nanocrystalline Zinc Oxide Film: The Importance of Exciplex Intermediates at the Surface
A. Furube, R. Katoh, T. Yoshihara, K. Hara +3 more
2004101 citations
Semantic Scholar
Dye-sensitized photocatalysts for efficient hydrogen production from aqueous I− solution under visible light irradiation
R. Abe, K. Sayama, H. Arakawa
200494 citations
Semantic Scholar
Photocatalytic Water Splitting into H2 and O2 over R3TaO7 and R3NbO7 (R = Y, Yb, Gd, La): Effect of Crystal Structure on Photocatalytic Activity
R. Abe, Masanobu Higashi, Z. Zou, K. Sayama +2 more
200493 citations
Semantic Scholar
Utilization of Titanate Nanotubes as an Electrode Material in Dye-Sensitized Solar Cells
Mingdeng Wei, Y. Konishi, Hao-Shen Zhou, H. Sugihara +1 more
200691 citations
Semantic Scholar
Influence of benzimidazole additives in electrolytic solution on dye-sensitized solar cell performance
H. Kusama, H. Arakawa
200485 citations
Semantic Scholar
Study on dye-sensitized solar cell using novel infrared dye
Takahiko Ono, T. Yamaguchi, H. Arakawa
200978 citations
Semantic Scholar
Trapping dynamics of electrons and holes in a nanocrystalline TiO2 film revealed by femtosecond visible/near-infrared transient absorption spectroscopy
Y. Tamaki, A. Furube, R. Katoh, M. Murai +3 more
200678 citations Open access
Semantic Scholar
Formation of nanotubes TiO2 from layered titanate particles by a soft chemical process
Mingdeng Wei, Y. Konishi, Hao-Shen Zhou, H. Sugihara +1 more
200577 citations
Semantic Scholar
Influence of nitrogen-containing heterocyclic additives in I−/I3− redox electrolytic solution on the performance of Ru-dye-sensitized nanocrystalline TiO2 solar cell
H. Kusama, M. Kurashige, H. Arakawa
200576 citations
Semantic Scholar
Series-connected tandem dye-sensitized solar cell for improving efficiency to more than 10%
T. Yamaguchi, Yuki Uchida, S. Agatsuma, H. Arakawa
200972 citations
Semantic Scholar
Influence of alkylaminopyridine additives in electrolytes on dye-sensitized solar cell performance
H. Kusama, H. Arakawa
200468 citations
Semantic Scholar
A simple method to synthesize nanowires titanium dioxide from layered titanate particles
Mingdeng Wei, Y. Konishi, Hao-Shen Zhou, H. Sugihara +1 more
200459 citations
Semantic Scholar
Influence of electrolyte on the photovoltaic performance of a dye-sensitized TiO2 solar cell based on a Ru(II) terpyridyl complex photosensitizer
K. Hara, T. Nishikawa, M. Kurashige, H. Kawauchi +4 more
200454 citations
Semantic Scholar
Efficient dye-sensitized solar cell sub-modules
H. Arakawa, T. Yamaguchi, T. Sutou, Y. Koishi +3 more
201051 citations
Semantic Scholar
Effects of dye-adsorption solvent on the performances of the dye-sensitized solar cells based on black dye.
Hironobu Ozawa, M. Awa, Takahiko Ono, H. Arakawa
2012Chemistry - An Asian Journal50 citations
Semantic Scholar
Fischer–Tropsch synthesis over Co–SiO2 catalysts prepared by the sol–gel method
K. Okabe, Xiaohong Li, Mingdeng Wei, H. Arakawa
200450 citations
Semantic Scholar
A new cosensitization method using the Lewis acid sites of a TiO₂ photoelectrode for dye-sensitized solar cells.
Naoyuki Shibayama, Hironobu Ozawa, M. Abe, Yousuke Ooyama +1 more
2014Chemical Communications47 citations
Semantic Scholar
Dependence of the efficiency improvement of black-dye-based dye-sensitized solar cells on alkyl chain length of quaternary ammonium cations in electrolyte solutions.
Hironobu Ozawa, Yu Okuyama, H. Arakawa
2014ChemPhysChem46 citations
Semantic Scholar
Decomposition of water into H2 and O2 by a two-step photoexcitation reaction over a Pt–TiO2 photocatalyst in NaNO2 and Na2CO3 aqueous solution
K. Sayama, R. Abe, H. Arakawa, H. Sugihara
200645 citations
Semantic Scholar
Highly efficient dye-sensitized solar cells based on a ruthenium sensitizer bearing a hexylthiophene modified terpyridine ligand
Hironobu Ozawa, T. Sugiura, Takahiro Kuroda, K. Nozawa +1 more
201644 citations
Semantic Scholar
Synthesis of novel beta-diketonate bis(bipyridyl) Os(II) dyes for utilization of infrared light in dye-sensitized solar cells.
T. Yamaguchi, Takanori Miyabe, Takahiko Ono, H. Arakawa
2010Chemical Communications41 citations
Semantic Scholar
Influence of pyrazole derivatives in I−/I3− redox electrolyte solution on Ru(II)-dye-sensitized TiO2 solar cell performance
H. Kusama, H. Arakawa
200539 citations
Semantic Scholar
Quantitative Estimation of the Efficiency of Electron Injection from Excited Sensitizer Dye into Nanocrystalline ZnO Film
T. Yoshihara, R. Katoh, A. Furube, M. Murai +5 more
200435 citations
Semantic Scholar
Synthesis and characterization of nanosheet-shaped titanium dioxide
Mingdeng Wei, Y. Konishi, H. Arakawa
200734 citations
Semantic Scholar
Effective enhancement of the performance of black dye based dye-sensitized solar cells by metal oxide surface modification of the TiO2 photoelectrode.
Hironobu Ozawa, Yu Okuyama, H. Arakawa
2012Dalton Transactions32 citations
Semantic Scholar
Novel near-infrared carboxylated 1,3-indandione sensitizers for highly efficient flexible dye-sensitized solar cells.
Naoyuki Shibayama, Y. Inoue, M. Abe, S. Kajiyama +3 more
2015Chemical Communications31 citations
Semantic Scholar
Ruthenium sensitizers with a hexylthiophene-modified terpyridine ligand for dye-sensitized solar cells: synthesis, photo- and electrochemical properties, and adsorption behavior to the TiO2 surface.
Hironobu Ozawa, Yasuyuki Yamamoto, Hiroki Kawaguchi, R. Shimizu +1 more
2015ACS Applied Materials and Interfaces28 citations
Semantic Scholar
Effects of cation composition in the electrolyte on the efficiency improvement of black dye-based dye-sensitized solar cells
Hironobu Ozawa, Yu Okuyama, H. Arakawa
201327 citations
Semantic Scholar
Synthesis and characterization of zirconium containing mesoporous silicates and the utilization as support of cobalt catalysts for Fischer–Tropsch synthesis
Mingdeng Wei, K. Okabe, H. Arakawa, Y. Teraoka
200426 citations
Semantic Scholar
Microscopic imaging of the efficiency of electron injection from excited sensitizer dye into nanocrystalline ZnO film
R. Katoh, A. Furube, Y. Tamaki, T. Yoshihara +5 more
200424 citations
Semantic Scholar
Nanocrystalline solar cells sensitized with monocarboxyl or dicarboxyl pyridylquinoline ruthenium(II) complexes
M. Yanagida, T. Yamaguchi, Masahiko Kurashige, G. Fujihashi +4 more
200324 citations
Semantic Scholar
Novel ruthenium sensitizers with a dianionic tridentate ligand for dye-sensitized solar cells: the relationship between the solar cell performances and the electron-withdrawing ability of substituents on the ligand.
Hironobu Ozawa, Shunsuke Honda, D. Katano, T. Sugiura +1 more
2014Dalton Transactions23 citations
Semantic Scholar
Synthesis of tubular titanate via a self-assembly and self-removal process.
Mingdeng Wei, Hao-Shen Zhou, Y. Konishi, M. Ichihara +2 more
2006Inorganic Chemistry23 citations
Semantic Scholar
Density functional study of imidazole–iodine interaction and its implication in dye-sensitized solar cell
H. Kusama, H. Arakawa, H. Sugihara
200522 citations
Semantic Scholar
Novel ruthenium sensitizers having different numbers of carboxyl groups for dye-sensitized solar cells: effects of the adsorption manner at the TiO₂ surface on the solar cell performance.
Hironobu Ozawa, T. Sugiura, R. Shimizu, H. Arakawa
2014Inorganic Chemistry21 citations
Semantic Scholar
Influence of quinoline derivatives in I−/I3− redox electrolyte solution on the performance of Ru(II)-dye-sensitized nanocrystalline TiO2 solar cell
H. Kusama, H. Arakawa
200421 citations
Semantic Scholar

Frequent co-authors

Invite them to SciRah by sharing their profile.

K. Hara×11
Invite
K. Hara — researcher profile on SciRah
H. Sugihara×11
Invite
H. Sugihara — researcher profile on SciRah
Hironobu Ozawa×11
Invite
Hironobu Ozawa — researcher profile on SciRah
R. Katoh×9
Invite
R. Katoh — researcher profile on SciRah

×9

Invite

Mingdeng Wei — researcher profile on SciRah

Invite

A. Furube — researcher profile on SciRah

T. Yamaguchi×8

Invite

T. Yamaguchi — researcher profile on SciRah

Invite

M. Tachiya — researcher profile on SciRah

Invite

Y. Konishi — researcher profile on SciRah

Hao-Shen Zhou×6

Invite

Hao-Shen Zhou — researcher profile on SciRah

Invite

H. Kusama — researcher profile on SciRah

T. Yoshihara×5

Invite

T. Yoshihara — researcher profile on SciRah