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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 82 2450 2365 103 100 548 26637

Naoto Hirosaki publications per year

The chart shows the history of publications by Naoto Hirosaki between 1982 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Naoto Hirosaki published across 44 years, from 1982 to 2025, averaging 13 papers a year. Output peaked at 39 publications in 2006. 10 of the 572 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1982 to 2025. Vertical axis: number of publications, 0 to 39. Peak 39 publications in 2006. 1982: 1 publication 1983: 0 publications 1984: 1 publication 1985: 1 publication 1986: 1 publication 1987: 5 publications 1988: 2 publications 1989: 2 publications 1990: 5 publications 1991: 9 publications 1992: 13 publications 1993: 4 publications 1994: 11 publications 1995: 11 publications 1996: 3 publications 1997: 7 publications 1998: 9 publications 1999: 8 publications 2000: 3 publications 2001: 6 publications 2002: 14 publications 2003: 29 publications 2004: 20 publications 2005: 25 publications 2006: 39 publications 2007: 19 publications 2008: 23 publications 2009: 24 publications 2010: 27 publications 2011: 19 publications 2012: 19 publications 2013: 25 publications 2014: 19 publications 2015: 20 publications 2016: 33 publications 2017: 25 publications 2018: 20 publications 2019: 15 publications 2020: 13 publications 2021: 19 publications 2022: 6 publications 2023: 7 publications 2024: 7 publications 2025: 3 publications
1982 2025

572 publications in total across all disciplines

View publications per year as a table
Naoto Hirosaki: publications per year, 1982 to 2025
Year Publications
1982 1
1983 0
1984 1
1985 1
1986 1
1987 5
1988 2
1989 2
1990 5
1991 9
1992 13
1993 4
1994 11
1995 11
1996 3
1997 7
1998 9
1999 8
2000 3
2001 6
2002 14
2003 29
2004 20
2005 25
2006 39
2007 19
2008 23
2009 24
2010 27
2011 19
2012 19
2013 25
2014 19
2015 20
2016 33
2017 25
2018 20
2019 15
2020 13
2021 19
2022 6
2023 7
2024 7
2025 3
Total 572
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Naoto Hirosaki 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 Naoto Hirosaki 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, 530–549 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: 548 publications — 90th percentile

90% 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
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
530–549 162 548
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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Naoto Hirosaki 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 Naoto Hirosaki 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, 82–83 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: 82 D-Index — 81st percentile

81% 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
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 82
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

Naoto Hirosaki is affiliated with the National Institute for Materials Science in Japan and specializes in materials science, with a significant focus on materials chemistry. Their research output includes 85 publications in materials science broadly and 77 specifically in materials chemistry. Additional areas of study include electrical and electronic engineering, radiation, inorganic chemistry, and environmental sustainability related to renewable energy.

Hirosaki's main research topics encompass luminescence properties of advanced materials, perovskite materials, radiation detection, X-ray diffraction in crystallography, crystallization and solubility studies, solid-state spectroscopy, and luminescent and fluorescent materials. These topics represent the primary themes and technological applications addressed throughout their published works.

Frequent coauthors collaborating with Hirosaki include Takashi Takeda, Shiro Funahashi, Rong-Jun Xie, Kohsei Takahashi, and Takayuki Nakanishi. These collaborations indicate ongoing research partnerships within the field of materials science and related interdisciplinary projects.

Hirosaki's publications have appeared repeatedly in prominent scientific venues such as The Cambridge Structural Database, Journal of Materials Chemistry C, Chemistry of Materials, Journal of Alloys and Compounds, and Science and Technology of Advanced Materials. Notably, nine publications have been contributed to The Cambridge Structural Database.

The following recent papers demonstrate the range and focus of Hirosaki's research:

  • "Thermally Robust Orange-Red-Emitting Color Converters for Laser-Driven Warm White Light with High Overall Optical Properties" (2022), published in Laser & Photonics Review
  • "Unraveling the Luminescence Quenching of Phosphors under High-Power-Density Excitation" (2021), published in Acta Materialia
  • "Ternary solid solution phosphors Ca1--Li Al1--Si1++N3-O:Ce3+ with enhanced thermal stability for high-power laser lighting" (2020), published in Chemical Engineering Journal
  • "Powder synthesis and luminescence of a novel yellow-emitting Ba5Si11Al7N25: Eu2+ phosphor discovered by a single-particle-diagnosis approach for warm w-LEDs" (2022), published in Chemical Engineering Journal
  • "Discovery of a Ce3+-activated red nitride phosphor for high-brightness solid-state lighting" (2020), published in Journal of Materials Chemistry C

Best Publications

  • Luminescence Properties of a Red Phosphor, CaAlSiN3 : Eu2 + , for White Light-Emitting Diodes

    Kyota Uheda;Naoto Hirosaki;Yoshinobu Yamamoto;Atsushi Naito

  • Silicon-based oxynitride and nitride phosphors for white LEDs—A review

    Rong-Jun Xie;Naoto Hirosaki

  • Characterization and properties of green-emitting β-SiAlON:Eu2+ powder phosphors for white light-emitting diodes

    Naoto Hirosaki;Rong-Jun Xie;Koji Kimoto;Takashi Sekiguchi

  • Eu2+-doped Ca-α-SiAlON: A yellow phosphor for white light-emitting diodes

    Rong-Jun Xie;Naoto Hirosaki;Ken Sakuma;Yoshinobu Yamamoto

  • Down-Conversion Nitride Materials for Solid State Lighting: Recent Advances and Perspectives.

    Le Wang;Rong-Jun Xie;Takayuki Suehiro;Takashi Takeda

  • A Simple, Efficient Synthetic Route to Sr2Si5N8:Eu2+-Based Red Phosphors for White Light-Emitting Diodes

    Rong-Jun Xie;Naoto Hirosaki;Takayuki Suehiro;Fang-Fang Xu

  • 2-phosphor-converted white light-emitting diodes using oxynitride/nitride phosphors

    Rong-Jun Xie;Naoto Hirosaki;Naoki Kimura;Ken Sakuma

  • Yellow-Orange-Emitting CaAlSiN3:Ce3+ Phosphor: Structure, Photoluminescence, and Application in White LEDs

    Y. Q. Li;N. Hirosaki;R. J. Xie;T. Takeda

  • Ideal shear strain of metals and ceramics

    Shigenobu Ogata;Shigenobu Ogata;Ju Li;Naoto Hirosaki;Yoji Shibutani

  • Wavelength-tunable and thermally stable Li-α-sialon:Eu2+ oxynitride phosphors for white light-emitting diodes

    Rong-Jun Xie;Naoto Hirosaki;Mamoru Mitomo;Ken Sakuma

  • Color Conversion Materials for High-Brightness Laser-Driven Solid-State Lighting

    Shuxing Li;Le Wang;Naoto Hirosaki;Rong‐Jun Xie

  • Achieving High Quantum Efficiency Narrow-Band β-Sialon:Eu2+ Phosphors for High-Brightness LCD Backlights by Reducing the Eu3+ Luminescence Killer

    Shuxing Li;Shuxing Li;Le Wang;Daiming Tang;Yujin Cho

  • Rare-Earth Activated Nitride Phosphors: Synthesis, Luminescence and Applications

    Rong-Jun Xie;Naoto Hirosaki;Yuanqiang Li;Takashi Takeda

  • Extrahigh color rendering white light-emitting diode lamps using oxynitride and nitride phosphors excited by blue light-emitting diode

    Naoki Kimura;Ken Sakuma;Syunichiro Hirafune;Kenichiro Asano

  • Structure evolution and photoluminescence of Lu3(Al,Mg)2(Al,Si)3O12:Ce3+ phosphors: new yellow-color converters for blue LED-driven solid state lighting

    Haipeng Ji;Haipeng Ji;Le Wang;Maxim Molokeev;Naoto Hirosaki

  • Al2O3–YAG:Ce composite phosphor ceramic: a thermally robust and efficient color converter for solid state laser lighting

    Shuxing Li;Shuxing Li;Qiangqiang Zhu;Daiming Tang;Xuejian Liu

  • Optical Properties of Eu2+ in α-SiAlON

    Rong-Jun Xie;Naoto Hirosaki;Mamoru Mitomo;Yoshinobu Yamamoto

  • Synthesis and Photoluminescence Properties of β-sialon:Eu[sup 2+] (Si[sub 6−z]Al[sub z]O[sub z]N[sub 8−z]:Eu[sup 2+])

    R.-J. Xie;N. Hirosaki;H.-L. Li;Y. Q. Li

  • Highly efficient white-light-emitting diodes fabricated with short-wavelength yellow oxynitride phosphors

    Rong-Jun Xie;Naoto Hirosaki;Mamoru Mitomo;Kosei Takahashi

  • Unique Color Converter Architecture Enabling Phosphor-in-Glass (PiG) Films Suitable for High-Power and High-Luminance Laser-Driven White Lighting.

    Peng Zheng;Shuxing Li;Le Wang;Tian-Liang Zhou

  • Blue-emitting AlN:Eu2+ nitride phosphor for field emission displays

    N. Hirosaki;R.-J. Xie;K. Inoue;T. Sekiguchi

Frequent Co-Authors

Rong-Jun Xie
Rong-Jun Xie Xiamen University
Takashi Takeda
Takashi Takeda National Institute for Materials Science
Toshiyuki Nishimura
Toshiyuki Nishimura National Institute for Materials Science
Yoshio Sakka
Yoshio Sakka National Institute for Materials Science
Takashi Sekiguchi
Takashi Sekiguchi University of Tsukuba
Shigenobu Ogata
Shigenobu Ogata Osaka University
Toshio Ogasawara
Toshio Ogasawara Tokyo University of Agriculture and Technology
Koji Kimoto
Koji Kimoto National Institute for Materials Science
Ji-Guang Li
Ji-Guang Li National Institute for Materials Science
Dai-Ming Tang
Dai-Ming Tang National Institute for Materials Science

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