World's Best Scientists 2026 revealed!
Takashi Tachikawa

Takashi Tachikawa

D-Index & Metrics

Chemistry

D-Index
59
Citations
12987
World Ranking
10097
National Ranking
721

Takashi Tachikawa 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 Takashi Tachikawa sits on this spectrum.

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 publications 1,295+

This scientist: 181 publications — 25th percentile

25% of scientists in this discipline score the same or lower.

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

Takashi Tachikawa 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 Takashi Tachikawa sits on this spectrum.

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 D-Index 159+

This scientist: 59 D-Index — 44th percentile

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

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

Overview

Takashi Tachikawa is a researcher primarily affiliated with Kobe University in Japan, specializing in Materials Science with a strong focus on Materials Chemistry. Their extensive body of work spans key areas such as Crystallization and Solubility Studies, X-ray Diffraction in Crystallography, and Luminescence and Fluorescent Materials. Additional research interests include Advanced Photocatalysis Techniques, Organic Light-Emitting Diodes Research, Perovskite Materials and Applications, and Quantum Dots Synthesis and Properties.

Their recent publications cover a variety of topics within photocatalysis and semiconductor materials science. Notable papers include:

  • "Crystal phase-dependent generation of mobile OH radicals on TiO2: Revisiting the photocatalytic oxidation mechanism of anatase and rutile" (2021, Applied Catalysis B: Environmental)
  • "Ultra-Narrow Depletion Layers in a Hematite Mesocrystal-Based Photoanode for Boosting Multihole Water Oxidation" (2020, Angewandte Chemie International Edition)
  • "Binary dopant segregation enables hematite-based heterostructures for highly efficient solar H2O2 synthesis" (2022, Nature Communications)
  • "Charge Trapping in Semiconductor Photocatalysts: A Time- and Space-Domain Perspective" (2024, Journal of the American Chemical Society)
  • "Manipulation of charge carrier flow in Bi4NbO8Cl nanoplate photocatalyst with metal loading" (2022, Chemical Science)

Tachikawa frequently collaborates with several researchers, including:

  • Suguru Ito
  • Ryohei Yoshida
  • Yoshitaka Kumabe
  • Takumi Yagi
  • Sayaka Nagai

Their research is often published in venues such as The Cambridge Structural Database, where they have 18 publications, Angewandte Chemie International Edition with 4 papers, and Angewandte Chemie also with 4 papers. Other common venues include ChemPhotoChem and CrystEngComm, each hosting multiple contributions from Tachikawa.

Their work plays a role in fields intersecting Electrical and Electronic Engineering as well as Renewable Energy, Sustainability and the Environment, with less numerous but notable contributions to Organic Chemistry and Molecular Biology.

Best Publications

  • Mechanistic Insight into the TiO2 Photocatalytic Reactions: Design of New Photocatalysts

    Takashi Tachikawa;Mamoru Fujitsuka;Tetsuro Majima

  • Evidence for Crystal-Face-Dependent TiO2 Photocatalysis from Single-Molecule Imaging and Kinetic Analysis

    Takashi Tachikawa;Soichiro Yamashita;Tetsuro Majima

  • Au/TiO2 Superstructure-Based Plasmonic Photocatalysts Exhibiting Efficient Charge Separation and Unprecedented Activity

    Zhenfeng Bian;Takashi Tachikawa;Takashi Tachikawa;Peng Zhang;Mamoru Fujitsuka

  • Single-Particle Study of Pt-Modified Au Nanorods for Plasmon-Enhanced Hydrogen Generation in Visible to Near-Infrared Region

    Zhaoke Zheng;Takashi Tachikawa;Tetsuro Majima

  • Carbon-doped TiO2 photocatalyst synthesized without using an external carbon precursor and the visible light activity

    Yiseul Park;Wooyul Kim;Hyunwoong Park;Takashi Tachikawa

  • Plasmon-Enhanced Formic Acid Dehydrogenation Using Anisotropic Pd–Au Nanorods Studied at the Single-Particle Level

    Zhaoke Zheng;Takashi Tachikawa;Tetsuro Majima

  • Photocatalytic Oxidation Reactivity of Holes in the Sulfur- and Carbon-Doped TiO2 Powders Studied by Time-Resolved Diffuse Reflectance Spectroscopy

    Takashi Tachikawa;Sachiko Tojo;Kiyohiko Kawai;Masayuki Endo

  • Photoinduced Charge-Transfer Processes on MOF-5 Nanoparticles: Elucidating Differences between Metal-Organic Frameworks and Semiconductor Metal Oxides

    Takashi Tachikawa;Jun Rye Choi;Mamoru Fujitsuka;Tetsuro Majima

  • Iodine-Doped TiO2 Photocatalysts: Correlation between Band Structure and Mechanism

    Sachiko Tojo;Takashi Tachikawa;Mamoru Fujitsuka;Tetsuro Majima

  • Far-red fluorescence probe for monitoring singlet oxygen during photodynamic therapy.

    Sooyeon Kim;Takashi Tachikawa;Mamoru Fujitsuka;Tetsuro Majima

  • Selective Oxidative Degradation of Organic Pollutants by Singlet Oxygen-Mediated Photosensitization: Tin Porphyrin versus C60 Aminofullerene Systems

    Heechan Kim;Wooyul Kim;Yuri MacKeyev;Gi Seon Lee

  • Single-molecule, single-particle fluorescence imaging of TiO2-based photocatalytic reactions.

    Takashi Tachikawa;Tetsuro Majima

  • pH-Induced Intramolecular Folding Dynamics of i-Motif DNA

    Jungkweon Choi;Sooyeon Kim;Takashi Tachikawa;Mamoru Fujitsuka

  • Molecular‐Level Understanding of the Photocatalytic Activity Difference between Anatase and Rutile Nanoparticles

    Wooyul Kim;Takashi Tachikawa;Takashi Tachikawa;Gun-hee Moon;Tetsuro Majima

  • Design of a Highly Sensitive Fluorescent Probe for Interfacial Electron Transfer on a TiO2 Surface

    Takashi Tachikawa;Nan Wang;Nan Wang;Soichiro Yamashita;Shi-Cong Cui

  • Promoting water photooxidation on transparent WO3 thin films using an alumina overlayer

    Wooyul Kim;Takashi Tachikawa;Damián Monllor-Satoca;Hyoung Il Kim

  • Tin-porphyrin sensitized TiO2 for the production of H2 under visible light

    Wooyul Kim;Takashi Tachikawa;Tetsuro Majima;Changhong Li

  • Visible light-induced degradation of ethylene glycol on nitrogen-doped TiO2 powders.

    Takashi Tachikawa;Yoshio Takai;Sachiko Tojo;Mamoru Fujitsuka

  • Superior Electron Transport and Photocatalytic Abilities of Metal-Nanoparticle-Loaded TiO2 Superstructures

    Zhenfeng Bian;Takashi Tachikawa;Wooyul Kim;Wonyong Choi

  • Photocatalysis of Dye-Sensitized TiO2 Nanoparticles with Thin Overcoat of Al2O3: Enhanced Activity for H2 Production and Dechlorination of CCl4

    Wooyul Kim;Takashi Tachikawa;Tetsuro Majima;Wonyong Choi

  • Interfacial oxygen vacancies yielding long-lived holes in hematite mesocrystal-based photoanodes

    Zhujun Zhang;Izuru Karimata;Hiroki Nagashima;Shunsuke Muto

Frequent Co-Authors

Tetsuro Majima
Tetsuro Majima Osaka University
Mamoru Fujitsuka
Mamoru Fujitsuka Osaka University
Wonyong Choi
Wonyong Choi Pohang University of Science and Technology
Zhenfeng Bian
Zhenfeng Bian Shanghai Normal University
Wooyul Kim
Wooyul Kim Korea Institute of Energy Technology
Zhaoke Zheng
Zhaoke Zheng Shandong University
Hyunwoong Park
Hyunwoong Park Kyungpook National University
Seiji Yamazoe
Seiji Yamazoe Tokyo Metropolitan University
Harold Y. Hwang
Harold Y. Hwang Stanford University
Itaru Osaka
Itaru Osaka Hiroshima University

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