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Yousuke Ooyama

Yousuke Ooyama

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 44 16707 15083 1311 1186 250 8719

Yousuke Ooyama publications per year

The chart shows the history of publications by Yousuke Ooyama between 1999 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Yousuke Ooyama published across 28 years, from 1999 to 2026, averaging 9.9 papers a year. Output peaked at 18 publications in 2016. 15 of the 278 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1999 to 2026. Vertical axis: number of publications, 0 to 18. Peak 18 publications in 2016. 1999: 1 publication 2000: 1 publication 2001: 0 publications 2002: 3 publications 2003: 1 publication 2004: 4 publications 2005: 5 publications 2006: 7 publications 2007: 14 publications 2008: 9 publications 2009: 15 publications 2010: 14 publications 2011: 14 publications 2012: 15 publications 2013: 16 publications 2014: 14 publications 2015: 16 publications 2016: 18 publications 2017: 18 publications 2018: 9 publications 2019: 12 publications 2020: 7 publications 2021: 15 publications 2022: 12 publications 2023: 13 publications 2024: 10 publications 2025: 14 publications 2026: 1 publication
1999 2026

278 publications in total across all disciplines

View publications per year as a table
Yousuke Ooyama: publications per year, 1999 to 2026
Year Publications
1999 1
2000 1
2001 0
2002 3
2003 1
2004 4
2005 5
2006 7
2007 14
2008 9
2009 15
2010 14
2011 14
2012 15
2013 16
2014 14
2015 16
2016 18
2017 18
2018 9
2019 12
2020 7
2021 15
2022 12
2023 13
2024 10
2025 14
2026 1
Total 278
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Yousuke Ooyama 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 Yousuke Ooyama sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 241–260 publications, is where this scientist sits. 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
61–80 publications 1,295+

This scientist: 250 publications — 49th percentile

49% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100 250
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Yousuke Ooyama 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 Yousuke Ooyama sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 44–45 D-Index, is where this scientist sits. 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
40–41 D-Index 159+

This scientist: 44 D-Index — 7th percentile

7% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808 44
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

Yousuke Ooyama is affiliated with Hiroshima University in Japan, with a research focus spanning Materials Science and Chemistry. Their work predominantly addresses subfields such as Materials Chemistry, Spectroscopy, Biomedical Engineering, Organic Chemistry, and Electrical and Electronic Engineering.

Their research covers a range of topics including Luminescence and Fluorescent Materials, Molecular Sensors and Ion Detection, Photochromic and Fluorescence Chemistry, Porphyrin and Phthalocyanine Chemistry, Photodynamic Therapy Research Studies, Conducting Polymers and Applications, as well as Crystallization and Solubility Studies.

Yousuke Ooyama has published extensively in several scientific venues. Frequent publication venues include:

  • New Journal of Chemistry
  • The Cambridge Structural Database
  • RSC Advances
  • Materials Advances
  • Polymer Journal

Frequent collaborators in Yousuke Ooyama's research output consist of:

  • Keiichi Imato
  • Ichiro Imae
  • Kazuki Ohira
  • Takuma Fumoto
  • Seiji Akiyama

Representative recent papers illustrate the scope and focus of their research:

  • Photoswitchable Adhesives of Spiropyran Polymers, 2022, Chemistry of Materials
  • Fluorescence sensors for detection of water based on tetraphenylethene-anthracene possessing both solvatofluorochromic properties and aggregation-induced emission (AIE) characteristics, 2021, New Journal of Chemistry
  • Development of fluorescent sensors based on a combination of PET (photo-induced electron transfer) and FRET (Förster resonance energy transfer) for detection of water, 2020, Materials Advances
  • Highly Efficient Singlet Oxygen Generation and High Oxidation Resistance Enhanced by Arsole-Polymer-Based Photosensitizer: Application as a Recyclable Photooxidation Catalyst, 2020, Macromolecules
  • Sterically Hindered Stiff-Stilbene Photoswitch Offers Large Motions, 90% Two-Way Photoisomerization, and High Thermal Stability, 2022, The Journal of Organic Chemistry

The research addresses chemical sensing technologies, photo-responsive polymers, and advanced materials for photodynamic applications. The work also reflects a significant emphasis on fluorescence-based detection methods and photochromic materials with applications in molecular sensing and materials engineering.

Best Publications

  • Molecular Designs and Syntheses of Organic Dyes for Dye-Sensitized Solar Cells

    Yousuke Ooyama;Yutaka Harima

  • Photophysical and Electrochemical Properties, and Molecular Structures of Organic Dyes for Dye‐Sensitized Solar Cells

    Yousuke Ooyama;Yutaka Harima

  • Dye-Sensitized Solar Cells Based On Donor–Acceptor π-Conjugated Fluorescent Dyes with a Pyridine Ring as an Electron-Withdrawing Anchoring Group

    Yousuke Ooyama;Shogo Inoue;Tomoya Nagano;Kohei Kushimoto

  • Reversible Near-Infrared/Blue Mechanofluorochromism of Aminobenzopyranoxanthene

    Masaru Tanioka;Shinichiro Kamino;Atsuya Muranaka;Yousuke Ooyama

  • Molecular design of mechanofluorochromic dyes and their solid-state fluorescence properties

    Yousuke Ooyama;Yutaka Harima

  • Electron-Transfer Reaction of Oxygen Species on TiO2 Nanoparticles Induced by Sub-band-gap Illumination

    Kenji Komaguchi;Takanori Maruoka;Haruka Nakano;Ichiro Imae

  • Fluorescence PET (photo-induced electron transfer) sensors for water based on anthracene–boronic acid ester

    Yousuke Ooyama;Ai Matsugasako;Kazuyuki Oka;Tomoya Nagano

  • Dye-sensitized solar cells based on donor-π-acceptor fluorescent dyes with a pyridine ring as an electron-withdrawing-injecting anchoring group.

    Yousuke Ooyama;Tomoya Nagano;Shogo Inoue;Ichiro Imae

  • Heterocyclic quinol-type fluorophores: synthesis, X-ray crystal structures, and solid-state photophysical properties of novel 5-hydroxy-5-substituent-benzo[b]naphtho[1,2-d]furan-6-one and 3-hydroxy-3-substituent-benzo[kl]xanthen-2-one derivatives.

    Yousuke Ooyama;Tomohiro Okamoto;Takahiro Yamaguchi;Toshihisa Suzuki

  • Electrochemical reduction of graphene oxide in organic solvents

    Yutaka Harima;Sunao Setodoi;Ichiro Imae;Kenji Komaguchi

  • Detection of water in organic solvents by photo-induced electron transfer method

    Yousuke Ooyama;Minako Sumomogi;Tomoya Nagano;Kohei Kushimoto

  • Dye-sensitized solar cells based on D–π–A fluorescent dyes with two pyridyl groups as an electron-withdrawing–injecting anchoring group

    Yousuke Ooyama;Naoya Yamaguchi;Ichiro Imae;Kenji Komaguchi

  • Mechanofluorochromism of a Series of Benzofuro[2,3-c]oxazolo[4,5-a]carbazole-Type Fluorescent Dyes

    Yousuke Ooyama;Yusuke Kagawa;Hiroshi Fukuoka;Genta Ito

  • Photovoltaic performance of dye-sensitized solar cells based on D–π–A type BODIPY dye with two pyridyl groups

    Yousuke Ooyama;Yuta Hagiwara;Tomonobu Mizumo;Yutaka Harima

  • Synthesis of Dithienogermole-Containing π-Conjugated Polymers and Applications to Photovoltaic Cells

    Joji Ohshita;Yong-Mook Hwang;Tomonobu Mizumo;Hiroto Yoshida

  • Lewis-Acid Sites of TiO2 Surface for Adsorption of Organic Dye Having Pyridyl Group as Anchoring Unit

    Yutaka Harima;Takuya Fujita;Yuta Kano;Ichiro Imae

  • Molecular design of novel non-planar heteropolycyclic fluorophores with bulky substituents: convenient synthesis and solid-state fluorescence characterization.

    Yousuke Ooyama;Shintaro Yoshikawa;Shigeru Watanabe;Katsuhira Yoshida

  • Heterocyclic quinol-type fluorophores. Dramatic solid-state fluorescence enhancement behaviour of imidazoanthraquinol-type clathrate hosts upon inclusion of various kinds of organic solvent molecules

    Yousuke Ooyama;Katsuhira Yoshida

  • Molecular design and synthesis of fluorescence PET (photo-induced electron transfer) sensors for detection of water in organic solvents

    Yousuke Ooyama;Koji Uenaka;Ai Matsugasako;Yutaka Harima

  • Heterocyclic quinol-type fluorophores. Synthesis of novel imidazoanthraquinol derivatives and their photophysical properties in benzene and in the crystalline state

    Yousuke Ooyama;Takato Nakamura;Katsuhira Yoshida

  • New molecular design of donor-π-acceptor dyes for dye-sensitized solar cells: control of molecular orientation and arrangement on TiO2 surface

    Yousuke Ooyama;Yoshihito Shimada;Shogo Inoue;Tomoya Nagano

Frequent Co-Authors

Joji Ohshita
Joji Ohshita Hiroshima University
Hiroto Yoshida
Hiroto Yoshida Hiroshima University
Yasuchika Hasegawa
Yasuchika Hasegawa Hokkaido University
Mitsuo Ishikawa
Mitsuo Ishikawa Hiroshima University
Masanobu Uchiyama
Masanobu Uchiyama University of Tokyo
Ken Takaki
Ken Takaki Kyushu University
Fumito Tani
Fumito Tani Kyushu University
Tetsuo Otsubo
Tetsuo Otsubo Hiroshima University
Itaru Osaka
Itaru Osaka Hiroshima University
Kazuo Takimiya
Kazuo Takimiya Tohoku University

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