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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Materials Science 48 10727 10363 662 631 443 11868
Chemistry 48 15065 13577 1174 1065 405 11762

Naoki Ohashi publications per year

The chart shows the history of publications by Naoki Ohashi between 1989 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Naoki Ohashi published across 38 years, from 1989 to 2026, averaging 12.8 papers a year. Output peaked at 28 publications in 2005. 10 of the 487 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1989 to 2026. Vertical axis: number of publications, 0 to 28. Peak 28 publications in 2005. 1989: 1 publication 1990: 1 publication 1991: 3 publications 1992: 1 publication 1993: 4 publications 1994: 3 publications 1995: 1 publication 1996: 5 publications 1997: 8 publications 1998: 17 publications 1999: 15 publications 2000: 6 publications 2001: 7 publications 2002: 26 publications 2003: 22 publications 2004: 18 publications 2005: 28 publications 2006: 20 publications 2007: 12 publications 2008: 16 publications 2009: 21 publications 2010: 20 publications 2011: 17 publications 2012: 11 publications 2013: 22 publications 2014: 16 publications 2015: 10 publications 2016: 21 publications 2017: 28 publications 2018: 17 publications 2019: 17 publications 2020: 16 publications 2021: 14 publications 2022: 19 publications 2023: 9 publications 2024: 5 publications 2025: 8 publications 2026: 2 publications
1989 2026

487 publications in total across all disciplines

View publications per year as a table
Naoki Ohashi: publications per year, 1989 to 2026
Year Publications
1989 1
1990 1
1991 3
1992 1
1993 4
1994 3
1995 1
1996 5
1997 8
1998 17
1999 15
2000 6
2001 7
2002 26
2003 22
2004 18
2005 28
2006 20
2007 12
2008 16
2009 21
2010 20
2011 17
2012 11
2013 22
2014 16
2015 10
2016 21
2017 28
2018 17
2019 17
2020 16
2021 14
2022 19
2023 9
2024 5
2025 8
2026 2
Total 487
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Naoki Ohashi publication distribution in Materials Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Materials Science in 2026. The highlighted bar marks where Naoki Ohashi sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 57 bars. Horizontal axis: publications, 50–69 to 1,163+. Vertical axis: number of scientists, 0 to 891. Most scientists, 891, have 190–209 publications. The last bar groups every scientist with 1,163 publications or more. The highlighted bar, 430–449 publications, is where this scientist sits. 50–69 publications: 28 scientists 70–89 publications: 152 scientists 90–109 publications: 356 scientists 110–129 publications: 487 scientists 130–149 publications: 723 scientists 150–169 publications: 835 scientists 170–189 publications: 850 scientists 190–209 publications: 891 scientists 210–229 publications: 862 scientists 230–249 publications: 766 scientists 250–269 publications: 726 scientists 270–289 publications: 665 scientists 290–309 publications: 593 scientists 310–329 publications: 537 scientists 330–349 publications: 477 scientists 350–369 publications: 440 scientists 370–389 publications: 356 scientists 390–409 publications: 321 scientists 410–429 publications: 256 scientists 430–449 publications: 246 scientists 450–469 publications: 216 scientists 470–489 publications: 212 scientists 490–509 publications: 174 scientists 510–529 publications: 194 scientists 530–549 publications: 162 scientists 550–569 publications: 131 scientists 570–589 publications: 111 scientists 590–609 publications: 103 scientists 610–629 publications: 99 scientists 630–649 publications: 77 scientists 650–669 publications: 92 scientists 670–689 publications: 56 scientists 690–709 publications: 53 scientists 710–729 publications: 53 scientists 730–749 publications: 38 scientists 750–769 publications: 52 scientists 770–789 publications: 43 scientists 790–809 publications: 38 scientists 810–829 publications: 34 scientists 830–849 publications: 25 scientists 850–869 publications: 18 scientists 870–889 publications: 20 scientists 890–909 publications: 24 scientists 910–929 publications: 27 scientists 930–949 publications: 20 scientists 950–969 publications: 17 scientists 970–989 publications: 10 scientists 990–1,009 publications: 16 scientists 1,010–1,029 publications: 13 scientists 1,030–1,049 publications: 12 scientists 1,050–1,069 publications: 9 scientists 1,070–1,089 publications: 8 scientists 1,090–1,109 publications: 7 scientists 1,110–1,129 publications: 9 scientists 1,130–1,149 publications: 2 scientists 1,150–1,162 publications: 5 scientists 1,163+ publications: 100 scientists
50–69 publications 1,163+

This scientist: 443 publications — 82nd percentile

82% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,163 publications or more.

View publications distribution as a table
Number of Materials Science scientists by publication count, Research.com 2026 ranking edition. Based on 12,847 ranked scientists.
Publications Scientists This scientist
50–69 28
70–89 152
90–109 356
110–129 487
130–149 723
150–169 835
170–189 850
190–209 891
210–229 862
230–249 766
250–269 726
270–289 665
290–309 593
310–329 537
330–349 477
350–369 440
370–389 356
390–409 321
410–429 256
430–449 246 443
450–469 216
470–489 212
490–509 174
510–529 194
530–549 162
550–569 131
570–589 111
590–609 103
610–629 99
630–649 77
650–669 92
670–689 56
690–709 53
710–729 53
730–749 38
750–769 52
770–789 43
790–809 38
810–829 34
830–849 25
850–869 18
870–889 20
890–909 24
910–929 27
930–949 20
950–969 17
970–989 10
990–1,009 16
1,010–1,029 13
1,030–1,049 12
1,050–1,069 9
1,070–1,089 8
1,090–1,109 7
1,110–1,129 9
1,130–1,149 2
1,150–1,162 5
1,163+ 100
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Naoki Ohashi D-index placement in Materials Science in 2026

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

No. of scientists
200 400 600
Bar chart with 64 bars. Horizontal axis: D-Index, 40–41 to 165+. Vertical axis: number of scientists, 0 to 667. Most scientists, 667, have 52–53 D-Index. The last bar groups every scientist with 165 D-Index or more. The highlighted bar, 48–49 D-Index, is where this scientist sits. 40–41 D-Index: 211 scientists 42–43 D-Index: 450 scientists 44–45 D-Index: 612 scientists 46–47 D-Index: 612 scientists 48–49 D-Index: 598 scientists 50–51 D-Index: 657 scientists 52–53 D-Index: 667 scientists 54–55 D-Index: 621 scientists 56–57 D-Index: 597 scientists 58–59 D-Index: 610 scientists 60–61 D-Index: 587 scientists 62–63 D-Index: 606 scientists 64–65 D-Index: 533 scientists 66–67 D-Index: 490 scientists 68–69 D-Index: 469 scientists 70–71 D-Index: 378 scientists 72–73 D-Index: 421 scientists 74–75 D-Index: 359 scientists 76–77 D-Index: 323 scientists 78–79 D-Index: 299 scientists 80–81 D-Index: 230 scientists 82–83 D-Index: 210 scientists 84–85 D-Index: 195 scientists 86–87 D-Index: 203 scientists 88–89 D-Index: 175 scientists 90–91 D-Index: 175 scientists 92–93 D-Index: 142 scientists 94–95 D-Index: 121 scientists 96–97 D-Index: 117 scientists 98–99 D-Index: 107 scientists 100–101 D-Index: 88 scientists 102–103 D-Index: 85 scientists 104–105 D-Index: 68 scientists 106–107 D-Index: 62 scientists 108–109 D-Index: 57 scientists 110–111 D-Index: 45 scientists 112–113 D-Index: 49 scientists 114–115 D-Index: 50 scientists 116–117 D-Index: 34 scientists 118–119 D-Index: 38 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 29 scientists 124–125 D-Index: 28 scientists 126–127 D-Index: 24 scientists 128–129 D-Index: 33 scientists 130–131 D-Index: 28 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 20 scientists 136–137 D-Index: 23 scientists 138–139 D-Index: 17 scientists 140–141 D-Index: 12 scientists 142–143 D-Index: 17 scientists 144–145 D-Index: 21 scientists 146–147 D-Index: 13 scientists 148–149 D-Index: 11 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 13 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 4 scientists 162–163 D-Index: 4 scientists 164 D-Index: 3 scientists 165+ D-Index: 98 scientists
40–41 D-Index 165+

This scientist: 48 D-Index — 17th percentile

17% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 165 D-Index or more.

View D-Index distribution as a table
Number of Materials Science scientists by D-index, Research.com 2026 ranking edition. Based on 12,847 ranked scientists.
D-Index Scientists This scientist
40–41 211
42–43 450
44–45 612
46–47 612
48–49 598 48
50–51 657
52–53 667
54–55 621
56–57 597
58–59 610
60–61 587
62–63 606
64–65 533
66–67 490
68–69 469
70–71 378
72–73 421
74–75 359
76–77 323
78–79 299
80–81 230
82–83 210
84–85 195
86–87 203
88–89 175
90–91 175
92–93 142
94–95 121
96–97 117
98–99 107
100–101 88
102–103 85
104–105 68
106–107 62
108–109 57
110–111 45
112–113 49
114–115 50
116–117 34
118–119 38
120–121 37
122–123 29
124–125 28
126–127 24
128–129 33
130–131 28
132–133 21
134–135 20
136–137 23
138–139 17
140–141 12
142–143 17
144–145 21
146–147 13
148–149 11
150–151 14
152–153 13
154–155 9
156–157 10
158–159 7
160–161 4
162–163 4
164 3
165+ 98
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Overview

Naoki Ohashi is affiliated with the National Institute for Materials Science in Japan and has made significant contributions to the field of Materials Science, particularly within materials chemistry. Their research portfolio includes over 110 publications, with substantial work in subfields such as Materials Chemistry, Electrical and Electronic Engineering, and Inorganic Chemistry.

Their publications frequently appear in prominent venues including The Cambridge Structural Database, Physical Review B, the Journal of the Ceramic Society of Japan, Science and Technology of Advanced Materials, and the Journal of Crystal Growth.

Major topics covered in their research encompass crystallization and solubility studies, inorganic chemistry and materials, X-ray diffraction in crystallography, electronic and structural properties of oxides, perovskite materials and applications, ZnO doping and properties, as well as semiconductor materials and devices.

Among recent scientific papers attributed to Naoki Ohashi are:

  • A review on functional nanoarchitectonics nanocomposites based on octahedral metal atom clusters (Nb 6, Mo 6, Ta 6, W 6, Re 6 ): inorganic 0D and 2D powders and films, 2022, Science and Technology of Advanced Materials
  • Growth of Large Single Crystals of n-Type SnS from Halogen-Added Sn Flux, 2020, Crystal Growth & Design
  • Zn-Al layered double hydroxide-based nanocomposite functionalized with an octahedral molybdenum cluster exhibiting prominent photoactive and oxidation properties, 2020, Applied Clay Science
  • Zn-Al Layered Double Hydroxide Film Functionalized by a Luminescent Octahedral Molybdenum Cluster: Ultraviolet-Visible Photoconductivity Response, 2020, ACS Applied Materials & Interfaces
  • Original Synthesis of Molybdenum Nitrides Using Metal Cluster Compounds as Precursors: Applications in Heterogeneous Catalysis, 2020, Chemistry of Materials

Naoki Ohashi's frequent coauthors comprise Fabien Grasset, Takeo Ohsawa, Stéphane Cordier, Yoshitaka Matsushita, and Norio Saito, indicating collaborative research efforts particularly in materials and chemical sciences.

Best Publications

  • Low-Temperature Fabrication of Light-Emitting Zinc Oxide Micropatterns Using Self-Assembled Monolayers

    Noriko Saito;Hajime Haneda;Takashi Sekiguchi;Naoki Ohashi

  • Visible-light-driven photocatalysis on fluorine-doped TiO2 powders by the creation of surface oxygen vacancies

    Di Li;Hajime Haneda;Nitin K. Labhsetwar;Shunichi Hishita

  • Visible-Light-Driven N−F−Codoped TiO2 Photocatalysts. 2. Optical Characterization, Photocatalysis, and Potential Application to Air Purification

    Di Li;Hajime Haneda;Shunichi Hishita;Naoki Ohashi

  • Fluorine-doped TiO2 powders prepared by spray pyrolysis and their improved photocatalytic activity for decomposition of gas-phase acetaldehyde

    Di Li;Hajime Haneda;Shunichi Hishita;Naoki Ohashi

  • Visible-Light-Driven N−F−Codoped TiO2 Photocatalysts. 1. Synthesis by Spray Pyrolysis and Surface Characterization

    Di Li;Hajime Haneda;Shunichi Hishita;Naoki Ohashi

  • Origin of visible-light-driven photocatalysis: A comparative study on N/F-doped and N–F-codoped TiO2 powders by means of experimental characterizations and theoretical calculations

    Di Li;Naoki Ohashi;Shunichi Hishita;Taras Kolodiazhnyi

  • Pyrogenic Iron(III)-Doped TiO2 Nanopowders Synthesized in RF Thermal Plasma: Phase Formation, Defect Structure, Band Gap, and Magnetic Properties

    Wang Xh;Li Jg;Kamiyama H;Katada M

  • Visible-light-driven nitrogen-doped TiO2 photocatalysts: effect of nitrogen precursors on their photocatalysis for decomposition of gas-phase organic pollutants

    Di Li;Hajime Haneda;Shunichi Hishita;Naoki Ohashi

  • Effect of hydrogen doping on ultraviolet emission spectra of various types of ZnO

    Naoki Ohashi;Takamasa Ishigaki;Nobuhiro Okada;Takashi Sekiguchi

  • ZnO-based visible-light photocatalyst: Band-gap engineering and multi-electron reduction by co-catalyst

    Srinivasan Anandan;Naoki Ohashi;Masahiro Miyauchi

  • Effect of Hydrogenation on ZnO Luminescence

    Takashi Sekiguchi;Naoki Ohashi;Yoshihiro Terada

  • Surface modification of zinc oxide nanoparticles by aminopropyltriethoxysilane

    Fabien Grasset;N. Saito;D. Li;D. Park

  • Formation of Ni3C Nanocrystals by Thermolysis of Nickel Acetylacetonate in Oleylamine: Characterization Using Hard X-ray Photoelectron Spectroscopy

    Yuji Goto;Kota Taniguchi;Takahisa Omata;Shinya Otsuka-Yao-Matsuo

  • Growth condition dependence of morphology and electric properties of ZnO films on sapphire substrates prepared by molecular beam epitaxy

    Takeshi Ohgaki;Naoki Ohashi;Hirofumi Kakemoto;Satoshi Wada

  • Passivation of active recombination centers in ZnO by hydrogen doping

    Naoki Ohashi;Takamasa Ishigaki;Nobuhiro Okada;Hiroyuki Taguchi

  • Photoluminescence of Cerium-Doped α-SiAlON Materials

    Rong-Jun Xie;Naoto Hirosaki;Mamoru Mitomo;Yoshinobu Yamamoto

  • Conversion of an ultra-wide bandgap amorphous oxide insulator to a semiconductor

    Junghwan Kim;Takumi Sekiya;Norihiko Miyokawa;Naoto Watanabe

  • 90? Domain Reorientation and Electric-Field-Induced Strain of Tetragonal Lead Zirconate Titanate Ceramics

    Takaaki Tsurumi;Yutaka Kumano;Naoki Ohashi;Tadashi Takenaka

  • Inorganic Molybdenum Octahedral Nanosized Cluster Units, Versatile Functional Building Block for Nanoarchitectonics

    Stéphane Cordier;F. Grasset;Y. Molard;M. Amela-Cortes

  • Grain growth systematics for forsterite ± enstatite aggregates: Effect of lithology on grain size in the upper mantle

    Takehiko Hiraga;Chihiro Tachibana;Naoki Ohashi;Satoru Sano

  • Enhancement and patterning of ultraviolet emission in ZnO with an electron beam

    Rongguo Xie;Takashi Sekiguchi;Takamasa Ishigaki;Naoki Ohashi

  • Synthesis of nanosized nitrogen-containing MOx–ZnO (M = W, V, Fe) composite powders by spray pyrolysis and their visible-light-driven photocatalysis in gas-phase acetaldehyde decomposition

    Di Li;Hajime Haneda;Naoki Ohashi;Shunichi Hishita

Frequent Co-Authors

Hajime Haneda
Hajime Haneda National Institute for Materials Science
Isao Sakaguchi
Isao Sakaguchi National Institute for Materials Science
Kiyoshi Shimamura
Kiyoshi Shimamura National Institute for Materials Science
Takaaki Tsurumi
Takaaki Tsurumi Tokyo Institute of Technology
Takashi Sekiguchi
Takashi Sekiguchi University of Tsukuba
Junzo Tanaka
Junzo Tanaka Tokyo Institute of Technology
Stéphane Cordier
Stéphane Cordier Grenoble Alpes University
Takamasa Ishigaki
Takamasa Ishigaki Hosei University
Tadashi Takenaka
Tadashi Takenaka Tokyo University of Science
Hideo Hosono
Hideo Hosono Tokyo Institute of Technology

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