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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 70 5764 5232 356 333 420 21328

Kazuhiko Seki publications per year

The chart shows the history of publications by Kazuhiko Seki between 1973 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kazuhiko Seki published across 53 years, from 1973 to 2025, averaging 9.2 papers a year. Output peaked at 24 publications in 1999. 17 of the 490 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1973 to 2025. Vertical axis: number of publications, 0 to 24. Peak 24 publications in 1999. 1973: 1 publication 1974: 4 publications 1975: 3 publications 1976: 4 publications 1977: 1 publication 1978: 0 publications 1979: 5 publications 1980: 2 publications 1981: 3 publications 1982: 7 publications 1983: 6 publications 1984: 3 publications 1985: 5 publications 1986: 8 publications 1987: 8 publications 1988: 8 publications 1989: 9 publications 1990: 19 publications 1991: 8 publications 1992: 7 publications 1993: 14 publications 1994: 8 publications 1995: 16 publications 1996: 11 publications 1997: 8 publications 1998: 18 publications 1999: 24 publications 2000: 15 publications 2001: 18 publications 2002: 11 publications 2003: 15 publications 2004: 10 publications 2005: 17 publications 2006: 15 publications 2007: 14 publications 2008: 16 publications 2009: 21 publications 2010: 13 publications 2011: 3 publications 2012: 10 publications 2013: 5 publications 2014: 7 publications 2015: 5 publications 2016: 5 publications 2017: 7 publications 2018: 5 publications 2019: 6 publications 2020: 9 publications 2021: 10 publications 2022: 9 publications 2023: 17 publications 2024: 12 publications 2025: 5 publications
1973 2025

490 publications in total across all disciplines

View publications per year as a table
Kazuhiko Seki: publications per year, 1973 to 2025
Year Publications
1973 1
1974 4
1975 3
1976 4
1977 1
1978 0
1979 5
1980 2
1981 3
1982 7
1983 6
1984 3
1985 5
1986 8
1987 8
1988 8
1989 9
1990 19
1991 8
1992 7
1993 14
1994 8
1995 16
1996 11
1997 8
1998 18
1999 24
2000 15
2001 18
2002 11
2003 15
2004 10
2005 17
2006 15
2007 14
2008 16
2009 21
2010 13
2011 3
2012 10
2013 5
2014 7
2015 5
2016 5
2017 7
2018 5
2019 6
2020 9
2021 10
2022 9
2023 17
2024 12
2025 5
Total 490
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Kazuhiko Seki 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 Kazuhiko Seki 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, 401–420 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: 420 publications — 82nd percentile

82% 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
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
401–420 397 420
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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Kazuhiko Seki 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 Kazuhiko Seki 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, 70–71 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: 70 D-Index — 68th percentile

68% 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
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646 70
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

Kazuhiko Seki is a researcher affiliated with the National Institute of Advanced Industrial Science and Technology in Japan. Their work primarily focuses on materials science and engineering, with a notable emphasis on materials chemistry and electrical and electronic engineering. The research intersects with renewable energy, sustainability, atomic and molecular physics, and statistical and nonlinear physics.

The main topics covered in Kazuhiko Seki's research include advanced photocatalysis techniques, perovskite materials and applications, copper-based nanomaterials and applications, MXene and MAX phase materials, advanced thermoelectric materials and devices, advanced thermodynamics and statistical mechanics, and the electronic and structural properties of oxides.

Frequent venues for their publications are diverse and include The Journal of Chemical Physics, arXiv (Cornell University), The Journal of Physical Chemistry C, Energy & Environmental Science, and ACS Applied Materials & Interfaces. These outlets reflect a consistent focus on physical chemistry, materials science, and energy-related research.

Coauthors who commonly collaborate with Kazuhiko Seki include Vikas Nandal, Kazunari Domen, Hiroyuki Matsuzaki, Takashi Hisatomi, and Yuriy Pihosh. These collaborations indicate an active engagement in research communities centered on photocatalysis and renewable energy materials.

Significant recent publications by Kazuhiko Seki include:

  • Photocatalytic water splitting with a quantum efficiency of almost unity, 2020, Nature
  • Ta3N5-Nanorods enabling highly efficient water oxidation via advantageous light harvesting and charge collection, 2020, Energy & Environmental Science
  • Development of a Core-Shell Heterojunction Ta3N5-Nanorods/BaTaO2N Photoanode for Solar Water Splitting, 2020, ACS Energy Letters
  • Design of semitransparent tantalum nitride photoanode for efficient and durable solar water splitting, 2022, Energy & Environmental Science
  • Unveiling charge dynamics of visible light absorbing oxysulfide for efficient overall water splitting, 2021, Nature Communications

Best Publications

  • ENERGY LEVEL ALIGNMENT AND INTERFACIAL ELECTRONIC STRUCTURES AT ORGANIC/METAL AND ORGANIC/ORGANIC INTERFACES

    Hisao Ishii;Kiyoshi Sugiyama;Eisuke Ito;Kazuhiko Seki

  • Photocatalytic water splitting with a quantum efficiency of almost unity

    Tsuyoshi Takata;Junzhe Jiang;Yoshihisa Sakata;Mamiko Nakabayashi

  • Dependence of indium–tin–oxide work function on surface cleaning method as studied by ultraviolet and x-ray photoemission spectroscopies

    Kiyoshi Sugiyama;Hisao Ishii;Yukio Ouchi;Kazuhiko Seki

  • Polarization energies of organic solids determined by ultraviolet photoelectron spectroscopy

    Naoki Sato;Kazuhiko Seki;Hiroo Inokuchi

  • Particulate Photocatalyst Sheets Based on Carbon Conductor Layer for Efficient Z-Scheme Pure-Water Splitting at Ambient Pressure.

    Qian Wang;Takashi Hisatomi;Yohichi Suzuki;Zhenhua Pan

  • Evidence from angle-resolved resonant photoemission for oxygen-2p nature of the Fermi-liquid states in Bi2CaSr2Cu2O8

    T. Takahashi;H. Matsuyama;H. Katayama-Yoshida;Y. Okabe

  • Electronic structure of anode interface with molybdenum oxide buffer layer

    Kaname Kanai;Kenji Koizumi;Satoru Ouchi;Yoshiaki Tsukamoto

  • Spontaneous buildup of giant surface potential by vacuum deposition of Alq3 and its removal by visible light irradiation

    Eisuke Ito;Yuuki Washizu;Naoki Hayashi;Hisao Ishii

  • Theoretical study of n-alkane adsorption on metal surfaces

    Yoshitada Morikawa;Yoshitada Morikawa;Hisao Ishii;Kazuhiko Seki

  • Band structure of Bi2Sr2CaCu2O8 studied by angle-resolved photoemission.

    T. Takahashi;H. Matsuyama;H. Katayama-Yoshida;Y. Okabe

  • Examination of band bending at buckminsterfullerene (C60)/metal interfaces by the Kelvin probe method

    N. Hayashi;H. Ishii;Y. Ouchi;K. Seki

  • Electronic structures of organic molecular materials for organic electroluminescent devices studied by ultraviolet photoemission spectroscopy

    Kiyoshi Sugiyama;Daisuke Yoshimura;Takayuki Miyamae;Takafumi Miyazaki

  • A Novel Type of Organic Semiconductors. Molecular Fastener

    Hiroo Inokuchi;Gunzi Saito;Peiji Wu;Kazuhiko Seki

  • Effect of annealing on the electronic structure of poly(3-hexylthiophene) thin film.

    Kaname Kanai;Takahiro Miyazaki;Hiroyuki Suzuki;Mina Inaba

  • Energy-level alignment at model interfaces of organic electroluminescent devices studied by UV photoemission: trend in the deviation from the traditional way of estimating the interfacial electronic structures

    H. Ishii;K. Sugiyama;D. Yoshimura;E. Ito

  • Local structure at the air/liquid interface of room-temperature ionic liquids probed by infrared-visible sum frequency generation vibrational spectroscopy: 1-alkyl-3-methylimidazolium tetrafluoroborates.

    Toshifumi Iimori;Takashi Iwahashi;Kaname Kanai;Kazuhiko Seki

  • Ultraviolet photoelectron spectroscopy and inverse photoemission spectroscopy of [6,6]-phenyl-C61-butyric acid methyl ester in gas and solid phases

    Kouki Akaike;Kaname Kanai;Hiroyuki Yoshida;Jun’ya Tsutsumi

  • Double layer structure and adsorption/desorption hysteresis of neat ionic liquid on Pt electrode surface — an in-situ IR-visible sum-frequency generation spectroscopic study

    Wei Zhou;Soya Inoue;Takashi Iwahashi;Kaname Kanai

  • Polarized XANES studies of oriented polyethylene and fluorinated polyethylenes

    Toshiaki Ohta;Kazuhiko Seki;Toshihiko Yokoyama;Ikuo Morisada

  • Orientational ordering of alkyl chain at the air/liquid interface of ionic liquids studied by sum frequency vibrational spectroscopy

    Toshifumi Iimori;Takashi Iwahashi;Hisao Ishii;Kazuhiko Seki

  • Solvent Effects in Nonadiabatic Electron‐Transfer Reactions: Theoretical Aspects

    Unknown

Frequent Co-Authors

Yukio Ouchi
Yukio Ouchi Tokyo Institute of Technology
Hisao Ishii
Hisao Ishii Chiba University
Hiroo Inokuchi
Hiroo Inokuchi University of Tokyo
Nobuo Ueno
Nobuo Ueno Chiba University
Toshihiko Yokoyama
Toshihiko Yokoyama Institute of Molecular Sciences
Masahiko Hara
Masahiko Hara Tokyo Institute of Technology
Koichi Kikuchi
Koichi Kikuchi Tokyo Metropolitan University
Yohji Achiba
Yohji Achiba Tokyo Metropolitan University
Takashi Takahashi
Takashi Takahashi Tohoku University
Hiroshi Katayama-Yoshida
Hiroshi Katayama-Yoshida University of Tokyo

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