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Ryuzi Katoh

Ryuzi Katoh

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 60 9599 8684 683 630 233 15028

Ryuzi Katoh publications per year

The chart shows the history of publications by Ryuzi Katoh between 1986 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ryuzi Katoh published across 41 years, from 1986 to 2026, averaging 6.6 papers a year. Output peaked at 16 publications in 2008. 13 of the 271 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1986 to 2026. Vertical axis: number of publications, 0 to 16. Peak 16 publications in 2008. 1986: 1 publication 1987: 0 publications 1988: 0 publications 1989: 1 publication 1990: 5 publications 1991: 2 publications 1992: 5 publications 1993: 1 publication 1994: 3 publications 1995: 4 publications 1996: 6 publications 1997: 7 publications 1998: 8 publications 1999: 2 publications 2000: 9 publications 2001: 7 publications 2002: 5 publications 2003: 6 publications 2004: 11 publications 2005: 5 publications 2006: 9 publications 2007: 14 publications 2008: 16 publications 2009: 16 publications 2010: 15 publications 2011: 4 publications 2012: 7 publications 2013: 5 publications 2014: 4 publications 2015: 7 publications 2016: 6 publications 2017: 4 publications 2018: 8 publications 2019: 10 publications 2020: 5 publications 2021: 7 publications 2022: 8 publications 2023: 10 publications 2024: 15 publications 2025: 12 publications 2026: 1 publication
1986 2026

271 publications in total across all disciplines

View publications per year as a table
Ryuzi Katoh: publications per year, 1986 to 2026
Year Publications
1986 1
1987 0
1988 0
1989 1
1990 5
1991 2
1992 5
1993 1
1994 3
1995 4
1996 6
1997 7
1998 8
1999 2
2000 9
2001 7
2002 5
2003 6
2004 11
2005 5
2006 9
2007 14
2008 16
2009 16
2010 15
2011 4
2012 7
2013 5
2014 4
2015 7
2016 6
2017 4
2018 8
2019 10
2020 5
2021 7
2022 8
2023 10
2024 15
2025 12
2026 1
Total 271
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Ryuzi Katoh publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Ryuzi Katoh sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 221–240 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 233 publications — 44th percentile

44% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216 233
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Ryuzi Katoh D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Ryuzi Katoh sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 60–61 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 60 D-Index — 47th percentile

47% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882 60
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

Ryuzi Katoh is affiliated with Nihon University in Japan and has a research focus that spans materials science and engineering. Their work primarily addresses materials chemistry and electrical and electronic engineering, with significant contributions to renewable energy, sustainability, and the environment. Subfields such as physical and theoretical chemistry and atomic and molecular physics, and optics are also notable areas in their research portfolio.

The scientist's research topics include:

  • Perovskite Materials and Applications
  • Advanced Photocatalysis Techniques
  • TiO2 Photocatalysis and Solar Cells
  • Electronic and Structural Properties of Oxides
  • Luminescence Properties of Advanced Materials
  • Photochemistry and Electron Transfer Studies
  • Luminescence and Fluorescent Materials

Ryuzi Katoh has frequently published in several scientific journals. The most common publication venues are:

  • The Journal of Physical Chemistry C (11 publications)
  • The Cambridge Structural Database (5 publications)
  • ACS Applied Materials & Interfaces (3 publications)
  • The Journal of Chemical Physics (3 publications)
  • Advanced Energy Materials (2 publications)

Recent publications authored or co-authored by Ryuzi Katoh include:

  • Predicting Solar Cell Performance from Terahertz and Microwave Spectroscopy, 2022, Advanced Energy Materials
  • Origin of Enhanced Overall Water Splitting Efficiency in Aluminum-Doped SrTiO3 Photocatalyst, 2023, Advanced Energy Materials
  • Water-Splitting Activity of La-Doped NaTaO3 Photocatalysts Sensitive to Spatial Distribution of Dopants, 2020, The Journal of Physical Chemistry C
  • Archetype-Cation-Based Room-Temperature Ionic Liquid: Aliphatic Primary Ammonium Bis(trifluoromethylsulfonyl)imide as a Highly Functional Additive for a Hole Transport Material in Perovskite Solar Cells, 2023, ACS Applied Materials & Interfaces
  • Synthesis, Reactivity, and Properties of Benz[a]azulenes via the [8 + 2] Cycloaddition of 2 H -Cyclohepta[b]furan-2-ones with an Enamine, 2022, The Journal of Organic Chemistry

The scientist has collaborated repeatedly with a group of co-authors including:

  • Naoyuki Nishimura
  • Takurou N. Murakami
  • Taku Shoji
  • Akari Yamazaki
  • Shunji Ito

Best Publications

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

    Kohjiro Hara;Tadatake Sato;Ryuzi Katoh;Akihiro Furube

  • Ultrafast plasmon-induced electron transfer from gold nanodots into TiO2 nanoparticles.

    Akihiro Furube;Luchao Du;Kohjiro Hara;Ryuzi Katoh

  • Efficiencies of Electron Injection from Excited N3 Dye into Nanocrystalline Semiconductor (ZrO2, TiO2, ZnO, Nb2O5, SnO2, In2O3) Films

    Ryuzi Katoh;Akihiro Furube;Toshitada Yoshihara;Kohjiro Hara

  • Oligothiophene-containing coumarin dyes for efficient dye-sensitized solar cells.

    Kohjiro Hara;† Zhong-Sheng Wang;Tadatake Sato;Akihiro Furube

  • Identification of Reactive Species in Photoexcited Nanocrystalline TiO2 Films by Wide-Wavelength-Range (400−2500 nm) Transient Absorption Spectroscopy

    Toshitada Yoshihara;Ryuzi Katoh;Akihiro Furube;Yoshiaki Tamaki

  • Novel conjugated organic dyes for efficient dye-sensitized solar cells

    K. Hara;T. Sato;R. Katoh;A. Furube

  • Direct observation of reactive trapped holes in TiO2 undergoing photocatalytic oxidation of adsorbed alcohols: evaluation of the reaction rates and yields.

    Yoshiaki Tamaki;Akihiro Furube;Miki Murai;Kohjiro Hara

  • Recent advances in instrumentation for absolute emission quantum yield measurements

    Hitoshi Ishida;Seiji Tobita;Yasuchika Hasegawa;Ryuzi Katoh

  • Dynamics of efficient electron-hole separation in TiO2 nanoparticles revealed by femtosecond transient absorption spectroscopy under the weak-excitation condition.

    Yoshiaki Tamaki;Akihiro Furube;Miki Murai;Kohjiro Hara

  • Analysis of the excited states of regioregular polythiophene P3HT

    Steffan Cook;Akihiro Furube;Ryuzi Katoh

  • Plasmon-Induced Charge Separation and Recombination Dynamics in Gold−TiO2 Nanoparticle Systems: Dependence on TiO2 Particle Size

    Luchao Du;Akihiro Furube;Kazuhiro Yamamoto;Kohjiro Hara

  • Dye sensitization of nanocrystalline titanium dioxide with square planar platinum(II) diimine dithiolate complexes.

    Ashraful Islam;Hideki Sugihara;Kohjiro Hara;Lok Pratap Singh

  • Fluorescence Quantum Yield of Aromatic Hydrocarbon Crystals

    Ryuzi Katoh;Kengo Suzuki;Akihiro Furube;Masahiro Kotani

  • Electron Injection Efficiency from Excited N3 into Nanocrystalline ZnO Films: Effect of (N3−Zn2+) Aggregate Formation

    Hiroaki Horiuchi;Ryuzi Katoh;Kohjiro Hara;Masatoshi Yanagida

  • Porphyrins for dye-sensitised solar cells: new insights into efficiency-determining electron transfer steps

    Matthew J. Griffith;Kenji Sunahara;Kenji Sunahara;Pawel Wagner;Klaudia Wagner

  • Zn-Zn porphyrin dimer-sensitized solar cells: toward 3-D light harvesting.

    Attila J. Mozer;Matthew J. Griffith;George Tsekouras;Pawel W Wagner

  • Kinetics and mechanism of electron injection and charge recombination in dye-sensitized nanocrystalline semiconductors

    Ryuzi Katoh;Akihiro Furube;Alexander V. Barzykin;Hironori Arakawa

  • Femtosecond Visible-to-IR Spectroscopy of TiO2 Nanocrystalline Films: Elucidation of the Electron Mobility before Deep Trapping†

    Yoshiaki Tamaki;Kohjiro Hara;Ryuzi Katoh;M. Tachiya

  • Origin of the stabilization energy of perylene excimer as studied by fluorescence and near-IR transient absorption spectroscopy

    Ryuzi Katoh;Subrata Sinha;Shigeo Murata;M Tachiya

  • Electron injection efficiency in dye-sensitized solar cells

    Ryuzi Katoh;Ryuzi Katoh;Akihiro Furube

  • Efficiencies of Electron Injection from Excited Sensitizer Dyes to Nanocrystalline ZnO Films as Studied by Near-IR Optical Absorption of Injected Electrons

    Ryuzi Katoh;Akihiro Furube;Kohjiro Hara;Shigeo Murata

Frequent Co-Authors

Akihiro Furube
Akihiro Furube University of Tokushima
Kohjiro Hara
Kohjiro Hara National Institute of Advanced Industrial Science and Technology
Hideki Sugihara
Hideki Sugihara National Institute of Advanced Industrial Science and Technology
Masatoshi Yanagida
Masatoshi Yanagida National Institute for Materials Science
Prashant Sonar
Prashant Sonar Queensland University of Technology
Ashraful Islam
Ashraful Islam National Institute for Materials Science
Liyuan Han
Liyuan Han Shanghai Jiao Tong University
Tomoyoshi Suenobu
Tomoyoshi Suenobu Osaka University
Kazuhiro Sayama
Kazuhiro Sayama National Institute of Advanced Industrial Science and Technology
David L. Officer
David L. Officer University of Wollongong

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