World's Best Scientists 2026 revealed!
Hideo Ohkita

Hideo Ohkita

D-Index & Metrics

Chemistry

D-Index
47
Citations
11153
World Ranking
15487
National Ranking
1212

Hideo Ohkita 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 Hideo Ohkita 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: 239 publications — 46th percentile

46% of scientists in this discipline score the same or lower.

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

Hideo Ohkita 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 Hideo Ohkita 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: 47 D-Index — 14th percentile

14% of scientists in this discipline score the same or lower.

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

Overview

Hideo Ohkita is affiliated with Kyoto University in Japan and has contributed extensively to the fields of Engineering and Materials Science, with a marked focus on Electrical and Electronic Engineering and Polymers and Plastics. Their research also spans Materials Chemistry, Surfaces, Coatings and Films, and Biomedical Engineering.

The scientist's primary research topics include Organic Electronics and Photovoltaics, Conducting Polymers and Applications, Perovskite Materials and Applications, Organic Light-Emitting Diodes, Quantum Dots Synthesis and Properties, Thin-Film Transistor Technologies, and Surface Modification and Superhydrophobicity.

Hideo Ohkita has published in various scientific venues, with the most frequent being:

  • ACS Applied Materials & Interfaces
  • Chemical Science
  • Communications Materials
  • Surfaces and Interfaces
  • Polymer Journal

The scientist has collaborated repeatedly with several coauthors, including:

  • Hyung Do Kim
  • Itaru Osaka
  • Yasunari Tamai
  • Masahiko Saito
  • Yanbin Wang

Some notable papers authored by or involving Hideo Ohkita include:

  • "Sn(IV)-free tin perovskite films realized by in situ Sn(0) nanoparticle treatment of the precursor solution," 2020, Nature Communications
  • "Cascaded energy landscape as a key driver for slow yet efficient charge separation with small energy offset in organic solar cells," 2022, Energy & Environmental Science
  • "Elucidating Mechanisms behind Ambient Storage-Induced Efficiency Improvements in Perovskite Solar Cells," 2021, ACS Energy Letters
  • "Impact of Noncovalent Sulfur-Fluorine Interaction Position on Properties, Structures, and Photovoltaic Performance in Naphthobisthiadiazole-Based Semiconducting Polymers," 2020, Advanced Energy Materials
  • "Efficient light-harvesting, energy migration, and charge transfer by nanographene-based nonfullerene small-molecule acceptors exhibiting unusually long excited-state lifetime in the film state," 2020, Chemical Science

Best Publications

  • Charge carrier formation in polythiophene/fullerene blend films studied by transient absorption spectroscopy.

    Hideo Ohkita;Steffan Cook;Yeni Astuti;Warren Duffy

  • Charge generation and recombination dynamics in poly(3-hexylthiophene)/fullerene blend films with different regioregularities and morphologies.

    Jiamo Guo;Hideo Ohkita;Hiroaki Benten;Shinzaburo Ito

  • Near-IR femtosecond transient absorption spectroscopy of ultrafast polaron and triplet exciton formation in polythiophene films with different regioregularities.

    Jiamo Guo;Hideo Ohkita;Hiroaki Benten;Shinzaburo Ito

  • High-efficiency polymer solar cells with small photon energy loss.

    Kazuaki Kawashima;Yasunari Tamai;Hideo Ohkita;Hideo Ohkita;Itaru Osaka

  • Highly efficient charge-carrier generation and collection in polymer/polymer blend solar cells with a power conversion efficiency of 5.7%

    Daisuke Mori;Hiroaki Benten;Izumi Okada;Hideo Ohkita;Hideo Ohkita

  • Exciton Diffusion in Conjugated Polymers: From Fundamental Understanding to Improvement in Photovoltaic Conversion Efficiency

    Yasunari Tamai;Hideo Ohkita;Hideo Ohkita;Hiroaki Benten;Shinzaburo Ito

  • Implication of Fluorine Atom on Electronic Properties, Ordering Structures, and Photovoltaic Performance in Naphthobisthiadiazole-Based Semiconducting Polymers

    Kazuaki Kawashima;Kazuaki Kawashima;Tomohiro Fukuhara;Yousuke Suda;Yasuhito Suzuki

  • Photovoltaic Performance of Perovskite Solar Cells with Different Grain Sizes

    Hyung Do Kim;Hideo Ohkita;Hideo Ohkita;Hiroaki Benten;Shinzaburo Ito

  • Recent research progress of polymer donor/polymer acceptor blend solar cells

    Hiroaki Benten;Daisuke Mori;Hideo Ohkita;Shinzaburo Ito

  • Improvement of the light-harvesting efficiency in polymer/fullerene bulk heterojunction solar cells by interfacial dye modification.

    Satoshi Honda;Takahiro Nogami;Hideo Ohkita;Hiroaki Benten

  • Selective Dye Loading at the Heterojunction in Polymer/Fullerene Solar Cells

    Satoshi Honda;Hideo Ohkita;Hiroaki Benten;Shinzaburo Ito

  • Sn(IV)-free tin perovskite films realized by in situ Sn(0) nanoparticle treatment of the precursor solution.

    Tomoya Nakamura;Shinya Yakumaru;Minh Anh Truong;Kyusun Kim

  • Low‐Bandgap Donor/Acceptor Polymer Blend Solar Cells with Efficiency Exceeding 4%

    Daisuke Mori;Hiroaki Benten;Izumi Okada;Hideo Ohkita

  • High-performance ternary blend all-polymer solar cells with complementary absorption bands from visible to near-infrared wavelengths

    Hiroaki Benten;Takaya Nishida;Daisuke Mori;Huajun Xu

  • A photophysical study of PCBM thin films

    Steffan Cook;Hideo Ohkita;Hideo Ohkita;Youngkyoo Kim;Youngkyoo Kim;Jessica J. Benson-Smith

  • Polymer/polymer blend solar cells improved by using high-molecular-weight fluorene-based copolymer as electron acceptor.

    Daisuke Mori;Hiroaki Benten;Hideo Ohkita;Hideo Ohkita;Shinzaburo Ito

  • Transient absorption spectroscopy of polymer-based thin-film solar cells

    Hideo Ohkita;Hideo Ohkita;Shinzaburo Ito

  • Light-Harvesting Mechanism in Polymer/Fullerene/Dye Ternary Blends Studied by Transient Absorption Spectroscopy

    Satoshi Honda;Seiichirou Yokoya;Hideo Ohkita;Hideo Ohkita;Hiroaki Benten

  • Multi-colored dye sensitization of polymer/fullerene bulk heterojunction solar cells

    Satoshi Honda;Hideo Ohkita;Hideo Ohkita;Hiroaki Benten;Shinzaburo Ito

  • Surface segregation at the aluminum interface of poly(3-hexylthiophene)/ fullerene solar cells

    Akiko Orimo;Kohji Masuda;Satoshi Honda;Hiroaki Benten

  • Bimodal polarons and hole transport in poly(3-hexylthiophene):fullerene blend films.

    Jiamo Guo;Hideo Ohkita;Seiichirou Yokoya;Hiroaki Benten

Frequent Co-Authors

Shinzaburo Ito
Shinzaburo Ito Kyoto University
Itaru Osaka
Itaru Osaka Hiroshima University
Anita Ho-Baillie
Anita Ho-Baillie University of Sydney
Atsushi Wakamiya
Atsushi Wakamiya Kyoto University
Shujuan Huang
Shujuan Huang Macquarie University
Kazuo Takimiya
Kazuo Takimiya Tohoku University
Kazuo Tanaka
Kazuo Tanaka Kyoto University
Akinori Saeki
Akinori Saeki Osaka University
Tomokazu Umeyama
Tomokazu Umeyama Kyoto University
Martin A. Green
Martin A. Green University of New South Wales

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