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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 52 9553 9223 568 542 312 10004
Chemistry 52 13482 12135 1029 939 301 9945

Kazuo Akagi publications per year

The chart shows the history of publications by Kazuo Akagi between 1976 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kazuo Akagi published across 50 years, from 1976 to 2025, averaging 6.5 papers a year. Output peaked at 31 publications in 2001. 9 of the 324 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1976 to 2025. Vertical axis: number of publications, 0 to 31. Peak 31 publications in 2001. 1976: 1 publication 1977: 1 publication 1978: 1 publication 1979: 1 publication 1980: 4 publications 1981: 1 publication 1982: 4 publications 1983: 0 publications 1984: 3 publications 1985: 1 publication 1986: 2 publications 1987: 6 publications 1988: 3 publications 1989: 6 publications 1990: 0 publications 1991: 9 publications 1992: 2 publications 1993: 9 publications 1994: 14 publications 1995: 8 publications 1996: 2 publications 1997: 16 publications 1998: 5 publications 1999: 19 publications 2000: 2 publications 2001: 31 publications 2002: 5 publications 2003: 7 publications 2004: 11 publications 2005: 15 publications 2006: 15 publications 2007: 10 publications 2008: 10 publications 2009: 9 publications 2010: 10 publications 2011: 9 publications 2012: 10 publications 2013: 9 publications 2014: 9 publications 2015: 6 publications 2016: 5 publications 2017: 7 publications 2018: 5 publications 2019: 3 publications 2020: 6 publications 2021: 1 publication 2022: 1 publication 2023: 1 publication 2024: 6 publications 2025: 3 publications
1976 2025

324 publications in total across all disciplines

View publications per year as a table
Kazuo Akagi: publications per year, 1976 to 2025
Year Publications
1976 1
1977 1
1978 1
1979 1
1980 4
1981 1
1982 4
1983 0
1984 3
1985 1
1986 2
1987 6
1988 3
1989 6
1990 0
1991 9
1992 2
1993 9
1994 14
1995 8
1996 2
1997 16
1998 5
1999 19
2000 2
2001 31
2002 5
2003 7
2004 11
2005 15
2006 15
2007 10
2008 10
2009 9
2010 10
2011 9
2012 10
2013 9
2014 9
2015 6
2016 5
2017 7
2018 5
2019 3
2020 6
2021 1
2022 1
2023 1
2024 6
2025 3
Total 324
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Kazuo Akagi 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 Kazuo Akagi 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, 310–329 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: 312 publications — 62nd percentile

62% 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
310–329 537 312
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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Kazuo Akagi 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 Kazuo Akagi 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, 52–53 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: 52 D-Index — 27th percentile

27% 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 52
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

Kazuo Akagi is affiliated with Ritsumeikan University in Japan and conducts research primarily in the fields of Materials Science and Chemistry. Their work spans several subfields including Organic Chemistry, Electronic, Optical and Magnetic Materials, Materials Chemistry, Polymers and Plastics, and Electrical and Electronic Engineering.

Their research topics cover a range of specialized areas such as:

  • Liquid Crystal Research Advancements
  • Synthesis and Properties of Aromatic Compounds
  • Photochromic and Fluorescence Chemistry
  • Luminescence and Fluorescent Materials
  • Organic Electronics and Photovoltaics
  • Conducting polymers and applications
  • Molecular spectroscopy and chirality

Kazuo Akagi has published in various scientific venues including:

  • Advanced Materials
  • Macromolecules
  • Advanced Optical Materials
  • ACS Applied Materials & Interfaces
  • Journal of Materials Chemistry C

Their recent papers include:

  • "Chiral Reaction Field with Thermally Invertible Helical Sense that Controls the Helicities of Conjugated Polymers" (2020, Advanced Materials)
  • "Photoinvertible Chiral Liquid Crystal that Affords Helicity-Controlled Aromatic Conjugated Polymers" (2020, Advanced Optical Materials)
  • "Helical Network Polymers Embodying High Dissymmetry Factors in Circularly Polarized Luminescence: Photocrosslinking Polymerization of Acrylate Derivatives in Chiral Smectic Liquid Crystals" (2021, Macromolecules)
  • "Helicity Control of Circularly Polarized Luminescence from Aromatic Conjugated Copolymers and Their Mixture Using Reversibly Photoinvertible Chiral Liquid Crystals" (2024, ACS Applied Materials & Interfaces)
  • "Thermally Invertible Full-Color Circularly Polarized Luminescence with High Dissymmetry Factors and High Quantum Yields in Fluorene Derivatives with Induced Chirality Generated in Chiral Liquid Crystals" (2025, ACS Applied Materials & Interfaces)

Frequent coauthors collaborating with Kazuo Akagi include:

  • Kosuke Kaneko
  • Tomonori Hanasaki
  • Keita Horie
  • Hiromasa Yamamoto
  • Satoru Yoshida

Best Publications

  • Helical Polyacetylene Synthesized with a Chiral Nematic Reaction Field

    K. Akagi;G. Piao;S. Kaneko;K. Sakamaki

  • Helical Polyacetylene: Asymmetric Polymerization in a Chiral Liquid-Crystal Field

    Kazuo Akagi

  • Dynamic Switching of the Circularly Polarized Luminescence of Disubstituted Polyacetylene by Selective Transmission through a Thermotropic Chiral Nematic Liquid Crystal

    Benedict A. San Jose;Jialin Yan;Kazuo Akagi

  • Lyotropic chiral nematic liquid crystalline aliphatic conjugated polymers based on disubstituted polyacetylene derivatives that exhibit high dissymmetry factors in circularly polarized luminescence.

    Benedict A. San Jose;Satoshi Matsushita;Kazuo Akagi

  • Helically π-Stacked Thiophene-Based Copolymers with Circularly Polarized Fluorescence: High Dissymmetry Factors Enhanced by Self-Ordering in Chiral Nematic Liquid Crystal Phase

    Kazuyoshi Watanabe;Itaru Osaka;Shinichi Yorozuya;Kazuo Akagi

  • Chiroptical Resolution and Thermal Switching of Chirality in Conjugated Polymer Luminescence via Selective Reflection using a Double‐Layered Cell of Chiral Nematic Liquid Crystal

    Jialin Yan;Fuyuki Ota;Benedict A. San Jose;Kazuo Akagi

  • Dynamic Photoswitching of Helical Inversion in Liquid Crystals Containing Photoresponsive Axially Chiral Dopants

    Hiroyuki Hayasaka;Tatsuaki Miyashita;Masaru Nakayama;Kenji Kuwada

  • One-dimensional transport in polymer nanofibers.

    A. N. Aleshin;A. N. Aleshin;H. J. Lee;Y. W. Park;K. Akagi

  • Synthesis of polyacetylene films with high density and high mechanical strength

    K. Akagi;M. Suezaki;H. Shirakawa;H. Kyotani

  • Optically active conjugated polymers prepared from achiral monomers by polycondensation in a chiral nematic solvent.

    Hiromasa Goto;Kazuo Akagi

  • Helically π-Stacked Conjugated Polymers Bearing Photoresponsive and Chiral Moieties in Side Chains: Reversible Photoisomerization-Enforced Switching Between Emission and Quenching of Circularly Polarized Fluorescence

    Hiroyuki Hayasaka;Tatsuaki Miyashita;Kazuya Tamura;Kazuo Akagi

  • Highly conductive polyacetylene film prepared by the liquid crystal polymerization method under magnetic field

    K Akagi;S Katayama;H Shirakawa;K Araya

  • Circularly Polarized Blue Luminescent Spherulites Consisting of Hierarchically Assembled Ionic Conjugated Polymers with a Helically π-Stacked Structure

    Kazuyoshi Watanabe;Hiroshi Iida;Kazuo Akagi

  • Helical carbon and graphitic films prepared from iodine-doped helical polyacetylene film using morphology-retaining carbonization.

    Mutsumasa Kyotani;Satoshi Matsushita;Takuro Nagai;Yoshio Matsui

  • Synthesis of Helical Polyacetylene in Chiral Nematic Liquid Crystals Using Crown Ether Type Binaphthyl Derivatives as Chiral Dopants

    Kazuo Akagi;Shouxue Guo;Taizou Mori;Munju Goh

  • Synthesis and properties of liquid-crystalline polyacetylenes with a phenylcyclohexyl mesogenic moiety in the side group

    Se Young Oh;Kazuo Akagi;Hideki Shirakawa;Kotaro Araya

  • Highly twisted helical polyacetylene with morphology free from the bundle of fibrils synthesized in chiral nematic liquid crystal reaction field.

    Munju Goh;Mutsumasa Kyotani;Kazuo Akagi

  • One-dimensional conjugated carbyne - synthesis and properties

    K. Akagi;M. Nishiguchi;H. Shirakawa;Y. Furukawa

  • Helically assembled π -conjugated polymers with circularly polarized luminescence

    Kazuyoshi Watanabe;Kazuo Akagi

  • Photochemically colour-tuneable white fluorescence illuminants consisting of conjugated polymer nanospheres

    Jingxhou Bu;Kazuyoshi Watanabe;Hiroyuki Hayasaka;Kazuo Akagi

  • From helical polyacetylene to helical graphite: synthesis in the chiral nematic liquid crystal field and morphology-retaining carbonisation

    Munju Goh;Satoshi Matsushita;Kazuo Akagi

Frequent Co-Authors

Yung Woo Park
Yung Woo Park Seoul National University
Tokio Yamabe
Tokio Yamabe Nagasaki Institute of Applied Science
Taizo Mori
Taizo Mori University of Tokyo
Kenichi Fukui
Kenichi Fukui Osaka University
Itaru Osaka
Itaru Osaka Hiroshima University
Yoshio Matsui
Yoshio Matsui National Institute for Materials Science
Hiroshi Yokoyama
Hiroshi Yokoyama Kent State University
Masatsugu Shimomura
Masatsugu Shimomura Tohoku University
Hiroshi Yabu
Hiroshi Yabu Tohoku University
Katsumi Yoshino
Katsumi Yoshino Osaka University

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