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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 58 7580 7328 415 402 259 15399

Hiroki Ago publications per year

The chart shows the history of publications by Hiroki Ago between 1993 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hiroki Ago published across 33 years, from 1993 to 2025, averaging 8.8 papers a year. Output peaked at 19 publications in 2016. 22 of the 289 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1993 to 2025. Vertical axis: number of publications, 0 to 19. Peak 19 publications in 2016. 1993: 1 publication 1994: 4 publications 1995: 2 publications 1996: 5 publications 1997: 9 publications 1998: 1 publication 1999: 8 publications 2000: 4 publications 2001: 2 publications 2002: 7 publications 2003: 3 publications 2004: 6 publications 2005: 8 publications 2006: 8 publications 2007: 7 publications 2008: 10 publications 2009: 5 publications 2010: 12 publications 2011: 4 publications 2012: 8 publications 2013: 16 publications 2014: 11 publications 2015: 11 publications 2016: 19 publications 2017: 17 publications 2018: 18 publications 2019: 14 publications 2020: 16 publications 2021: 13 publications 2022: 8 publications 2023: 10 publications 2024: 11 publications 2025: 11 publications
1993 2025

289 publications in total across all disciplines

View publications per year as a table
Hiroki Ago: publications per year, 1993 to 2025
Year Publications
1993 1
1994 4
1995 2
1996 5
1997 9
1998 1
1999 8
2000 4
2001 2
2002 7
2003 3
2004 6
2005 8
2006 8
2007 7
2008 10
2009 5
2010 12
2011 4
2012 8
2013 16
2014 11
2015 11
2016 19
2017 17
2018 18
2019 14
2020 16
2021 13
2022 8
2023 10
2024 11
2025 11
Total 289
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Hiroki Ago 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 Hiroki Ago 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, 250–269 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: 259 publications — 49th percentile

49% 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
250–269 726 259
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
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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Hiroki Ago 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 Hiroki Ago 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, 58–59 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: 58 D-Index — 41st percentile

41% 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
50–51 657
52–53 667
54–55 621
56–57 597
58–59 610 58
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

Hiroki Ago is affiliated with Kyushu University in Japan and has a research portfolio primarily focused on materials science, with particular emphasis on materials chemistry. Their work spans several subfields, including biomedical engineering, atomic and molecular physics and optics, electrical and electronic engineering, as well as surfaces, coatings, and films.

The main topics of research explored include:

  • Graphene research and applications
  • 2D materials and applications
  • Boron and carbon nanomaterials research
  • MXene and MAX phase materials
  • Nano pore and nano channel transport studies
  • Quantum and electron transport phenomena
  • Diamond and carbon-based materials research

Hiroki Ago has collaborated frequently with several researchers, including Pablo Solís-Fernández, Yung-Chang Lin, Kazu Suenaga, Kenji Kawahara, and Satoru Fukamachi. These partnerships have contributed to a sustained output of publications in notable venues.

The most frequent publication venues for their work are:

  • ACS Nano
  • arXiv (Cornell University)
  • Nature Electronics
  • ACS Applied Nano Materials
  • ACS Applied Electronic Materials

Selected recent publications illustrating the scope and focus of Hiroki Ago's research include:

  • "Large-area synthesis and transfer of multilayer hexagonal boron nitride for enhanced graphene device arrays" (2023, Nature Electronics)
  • "Ready-to-transfer two-dimensional materials using tunable adhesive force tapes" (2024, Nature Electronics)
  • "Science of 2.5 dimensional materials: paradigm shift of materials science toward future social innovation" (2022, Science and Technology of Advanced Materials)
  • "Isothermal Growth and Stacking Evolution in Highly Uniform Bernal-Stacked Bilayer Graphene" (2020, ACS Nano)
  • "High flux and adsorption based non-functionalized hexagonal boron nitride lamellar membrane for ultrafast water purification" (2020, Chemical Engineering Journal)

Best Publications

  • Work Functions and Surface Functional Groups of Multiwall Carbon Nanotubes

    Hiroki Ago;Thomas Kugler;Franco Cacialli;William R. Salaneck

  • Measuring the thermal conductivity of a single carbon nanotube.

    Motoo Fujii;Xing Zhang;Huaqing Xie;Hiroki Ago

  • Coherent transport of electron spin in a ferromagnetically contacted carbon nanotube

    Kazuhito Tsukagoshi;Bruce W. Alphenaar;Hiroki Ago

  • Composites of Carbon Nanotubes and Conjugated Polymers for Photovoltaic Devices

    Hiroki Ago;Klaus Petritsch;Milo S.P. Shaffer;Alan H. Windle

  • Polymer Composites of Carbon Nanotubes Aligned by a Magnetic Field

    Tohru Kimura;Hiroki Ago;Masayuki Tobita;Satoshi Ohshima

  • Epitaxial Chemical Vapor Deposition Growth of Single-Layer Graphene over Cobalt Film Crystallized on Sapphire

    Hiroki Ago;Yoshito Ito;Noriaki Mizuta;Kazuma Yoshida

  • Synthesis, structure and applications of graphene-based 2D heterostructures

    Pablo Solís-Fernández;Mark Bissett;Hiroki Ago;Hiroki Ago

  • Epitaxial growth of large-area single-layer graphene over Cu(111)/sapphire by atmospheric pressure CVD

    Baoshan Hu;Hiroki Ago;Yoshito Ito;Kenji Kawahara

  • Carbon nanotube complex molded body and the method of making the same

    Masayuki Tobita;Toru Kimura;Motoo Yumura;Satoshi Ohshima

  • Domain Structure and Boundary in Single-Layer Graphene Grown on Cu(111) and Cu(100) Films

    Yui Ogawa;Baoshan Hu;Baoshan Hu;Carlo M. Orofeo;Masaharu Tsuji

  • Strain engineering the properties of graphene and other two-dimensional crystals.

    Mark Alexander Bissett;Masaharu Tsuji;Hiroki Ago

  • Crystal plane dependent growth of aligned single-walled carbon nanotubes on sapphire.

    Naoki Ishigami;Hiroki Ago;Kenta Imamoto;Masaharu Tsuji

  • Enhanced Chemical Reactivity of Graphene Induced by Mechanical Strain

    Mark A. Bissett;Satoru Konabe;Susumu Okada;Masaharu Tsuji

  • Aligned growth of isolated single-walled carbon nanotubes programmed by atomic arrangement of substrate surface

    Hiroki Ago;Kazuhiro Nakamura;Ken Ichi Ikeda;Naoyasu Uehara

  • Thermal and electrical conductivity of a suspended platinum nanofilm

    Xing Zhang;Huaqing Xie;Motoo Fujii;Hiroki Ago

  • Large-area synthesis and transfer of multilayer hexagonal boron nitride for enhanced graphene device arrays

    Unknown

  • Electronic interaction between photoexcited poly(p-phenylene vinylene) and carbon nanotubes

    Hiroki Ago;Hiroki Ago;Milo S. P. Shaffer;David S. Ginger;Alan H. Windle

  • Catalytic Growth of Graphene: Toward Large-Area Single-Crystalline Graphene.

    Hiroki Ago;Yui Ogawa;Masaharu Tsuji;Seigi Mizuno

  • Gas analysis of the CVD process for high yield growth of carbon nanotubes over metal-supported catalysts

    Hiroki Ago;Naoyasu Uehara;Naoki Yoshihara;Masaharu Tsuji

  • Dispersion of metal nanoparticles for aligned carbon nanotube arrays

    Hiroki Ago;Toshiki Komatsu;Satoshi Ohshima;Yasunori Kuriki

  • CVD growth of single-walled carbon nanotubes with narrow diameter distribution over Fe/MgO catalyst and their fluorescence spectroscopy.

    Hiroki Ago;Shingo Imamura;Toshiya Okazaki;Takeshi Saito

Frequent Co-Authors

Masaharu Tsuji
Masaharu Tsuji Kyushu University
Motoo Yumura
Motoo Yumura National Institute of Advanced Industrial Science and Technology
Tokio Yamabe
Tokio Yamabe Nagasaki Institute of Applied Science
Koji Takahashi
Koji Takahashi Kyushu University
Hiroki Hibino
Hiroki Hibino Kwansei Gakuin University
Susumu Okada
Susumu Okada University of Tsukuba
Kazuyoshi Tanaka
Kazuyoshi Tanaka Kyoto University
Xing Zhang
Xing Zhang Tsinghua University
Sumio Iijima
Sumio Iijima Meijo University
Kazu Suenaga
Kazu Suenaga Osaka University

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