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Hiroshi Kawarada

Hiroshi Kawarada

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Materials Science 65 5665 5479 275 269 603 14112

Hiroshi Kawarada publications per year

The chart shows the history of publications by Hiroshi Kawarada between 1965 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hiroshi Kawarada published across 62 years, from 1965 to 2026, averaging 11 papers a year. Output peaked at 44 publications in 2017. 17 of the 685 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1965 to 2026. Vertical axis: number of publications, 0 to 44. Peak 44 publications in 2017. 1965: 1 publication 1966: 1 publication 1967: 1 publication 1968: 0 publications 1969: 0 publications 1970: 0 publications 1971: 1 publication 1972: 0 publications 1973: 2 publications 1974: 0 publications 1975: 0 publications 1976: 1 publication 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 1 publication 1981: 1 publication 1982: 1 publication 1983: 2 publications 1984: 1 publication 1985: 3 publications 1986: 4 publications 1987: 5 publications 1988: 5 publications 1989: 12 publications 1990: 19 publications 1991: 7 publications 1992: 4 publications 1993: 10 publications 1994: 11 publications 1995: 11 publications 1996: 5 publications 1997: 16 publications 1998: 7 publications 1999: 9 publications 2000: 4 publications 2001: 20 publications 2002: 18 publications 2003: 19 publications 2004: 14 publications 2005: 22 publications 2006: 29 publications 2007: 23 publications 2008: 23 publications 2009: 10 publications 2010: 17 publications 2011: 9 publications 2012: 17 publications 2013: 14 publications 2014: 13 publications 2015: 17 publications 2016: 34 publications 2017: 44 publications 2018: 26 publications 2019: 31 publications 2020: 34 publications 2021: 30 publications 2022: 23 publications 2023: 22 publications 2024: 14 publications 2025: 16 publications 2026: 1 publication
1965 2026

685 publications in total across all disciplines

View publications per year as a table
Hiroshi Kawarada: publications per year, 1965 to 2026
Year Publications
1965 1
1966 1
1967 1
1968 0
1969 0
1970 0
1971 1
1972 0
1973 2
1974 0
1975 0
1976 1
1977 0
1978 0
1979 0
1980 1
1981 1
1982 1
1983 2
1984 1
1985 3
1986 4
1987 5
1988 5
1989 12
1990 19
1991 7
1992 4
1993 10
1994 11
1995 11
1996 5
1997 16
1998 7
1999 9
2000 4
2001 20
2002 18
2003 19
2004 14
2005 22
2006 29
2007 23
2008 23
2009 10
2010 17
2011 9
2012 17
2013 14
2014 13
2015 17
2016 34
2017 44
2018 26
2019 31
2020 34
2021 30
2022 23
2023 22
2024 14
2025 16
2026 1
Total 685
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Hiroshi Kawarada 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 Hiroshi Kawarada 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, 590–609 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: 603 publications — 92nd percentile

92% 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
550–569 131
570–589 111
590–609 103 603
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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Hiroshi Kawarada 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 Hiroshi Kawarada 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, 64–65 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: 65 D-Index — 57th percentile

57% 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 65
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

Hiroshi Kawarada is affiliated with Waseda University in Japan and has contributed extensively to research in engineering and materials science. Their work primarily focuses on electrical and electronic engineering and materials chemistry, with further engagement in condensed matter physics, mechanics of materials, and electronic, optical, and magnetic materials.

The main topics addressed in Kawarada's research include:

  • Diamond and carbon-based materials research
  • Semiconductor materials and devices
  • Metal and thin film mechanics
  • GaN-based semiconductor devices and materials
  • Ga2O3 and related materials
  • Analytical chemistry and sensors
  • Advancements in semiconductor devices and circuit design

Kawarada's recent publications illustrate a broad range of interests within these areas. Notable papers include:

  • "Reliability, Applications and Challenges of GaN HEMT Technology for Modern Power Devices: A Review," 2022, published in Crystals
  • "Challenges and Opportunities for High-Power and High-Frequency AlGaN/GaN High-Electron-Mobility Transistor (HEMT) Applications: A Review," 2022, published in Micromachines
  • "Oxidized Si terminated diamond and its MOSFET operation with SiO2 gate insulator," 2020, published in Applied Physics Letters
  • "Ten Years Progress of Electrical Detection of Heavy Metal Ions (HMIs) Using Various Field-Effect Transistor (FET) Nanosensors: A Review," 2021, published in Biosensors
  • "C-Si bonded two-dimensional hole gas diamond MOSFET with normally-off operation and wide temperature range stability," 2021, published in Carbon

Coauthorship patterns highlight collaboration with several frequent partners, including Mohd Syamsul, Atsushi Hiraiwa, Shaili Falina, Yu Fu, and Te Bi. These collaborations encompass various aspects of semiconductor and materials research, contributing to the breadth of Kawarada's scientific output.

Kawarada has contributed multiple papers to prestigious publication venues, among which the most frequent are:

  • IEEE Transactions on Electron Devices
  • IEEE Electron Device Letters
  • Extended Abstracts of the 2020 International Conference on Solid State Devices and Materials
  • Carbon
  • Journal of Vacuum Science & Technology B Nanotechnology and Microelectronics Materials Processing Measurement and Phenomena

The research output of Hiroshi Kawarada spans over 120 publications in engineering and over 90 in materials science, reflecting a sustained and focused engagement in advancing knowledge in electrical and electronic engineering and materials chemistry. Their scholarly record demonstrates a particular emphasis on semiconductor devices, diamond and carbon materials, and the mechanical properties of thin films and metals within these domains.

Best Publications

  • Hydrogen-terminated diamond surfaces and interfaces

    Hiroshi Kawarada

  • Superconductivity in diamond thin films well above liquid helium temperature

    Yoshihiko Takano;Masanori Nagao;Isao Sakaguchi;Minoru Tachiki

  • Superconductivity in CVD Diamond Thin Film Well-Above Liquid Helium Temperature

    Y. Takano;M. Nagao;K. Kobayashi;H. Umezawa

  • Origin of the metallic properties of heavily boron-doped superconducting diamond

    T. Yokoya;T. Nakamura;T. Matsushita;T. Muro

  • C-H surface diamond field effect transistors for high temperature (400 °C) and high voltage (500 V) operation

    H. Kawarada;H. Tsuboi;T. Naruo;T. Yamada

  • Growth Kinetics of 0.5 cm Vertically Aligned Single-Walled Carbon Nanotubes

    Guofang Zhong;Takayuki Iwasaki;John Robertson;Hiroshi Kawarada

  • Enhancement mode metal‐semiconductor field effect transistors using homoepitaxial diamonds

    Hiroshi Kawarada;Makoto Aoki;Masahiro Ito

  • Normally-Off C–H Diamond MOSFETs With Partial C–O Channel Achieving 2-kV Breakdown Voltage

    Yuya Kitabayashi;Takuya Kudo;Hidetoshi Tsuboi;Tetsuya Yamada

  • Large area chemical vapour deposition of diamond particles and films using magneto-microwave plasma

    Hiroshi Kawarada;King Sheng Mar;Akio Hiraki

  • Scanning-tunneling-microscope observation of the homoepitaxial diamond (001) 2×1 reconstruction observed under atmospheric pressure

    Hiroshi Kawarada;Hidehiro Sasaki;Atsuhiro Sato

  • Properties of metal/diamond interfaces and effects of oxygen adsorbed onto diamond surface

    Yusuke Mori;Hiroshi Kawarada;Akio Hiraki

  • Smart Power Devices and ICs Using GaAs and Wide and Extreme Bandgap Semiconductors

    T. Paul Chow;Ichiro Omura;Masataka Higashiwaki;Hiroshi Kawarada

  • Low Temperature Synthesis of Extremely Dense and Vertically Aligned Single-Walled Carbon Nanotubes

    Guofang Zhong;Takayuki Iwasaki;Kotaro Honda;Yukio Furukawa

  • Electrolyte-Solution-Gate FETs Using Diamond Surface for Biocompatible Ion Sensors

    H. Kawarada;Y. Araki;T. Sakai;T. Ogawa

  • Reliability, Applications and Challenges of GaN HEMT Technology for Modern Power Devices: A Review

    Unknown

  • Heteroepitaxial growth of smooth and continuous diamond thin films on silicon substrates via high quality silicon carbide buffer layers

    H. Kawarada;T. Suesada;H. Nagasawa

  • Superconducting properties of homoepitaxial CVD diamond

    Y. Takano;T. Takenouchi;S. Ishii;S. Ueda

  • DNA Micropatterning on Polycrystalline Diamond via One-Step Direct Amination

    Guo Jun Zhang;Kwang Soup Song;Yusuke Nakamura;Taro Ueno

  • Excitonic recombination radiation in undoped and boron-doped chemical-vapor-deposited diamonds.

    H. Kawarada;H. Matsuyama;Y. Yokota;T. Sogi

  • Cathodoluminescence and electroluminescence of undoped and boron-doped diamond formed by plasma chemical vapor deposition

    H. Kawarada;Y. Yokota;Y. Mori;K. Nishimura

  • Low temperature grown carbon nanotube interconnects using inner shells by chemical mechanical polishing

    Daisuke Yokoyama;Takayuki Iwasaki;Tsuyoshi Yoshida;Hiroshi Kawarada

  • High-preformance diamond surface-channel field-effect transistors and their operation mechanism

    K Tsugawa;K Kitatani;H Noda;A Hokazono

Frequent Co-Authors

Yoshihiko Takano
Yoshihiko Takano National Institute for Materials Science
Tokuyuki Teraji
Tokuyuki Teraji National Institute for Materials Science
Isao Sakaguchi
Isao Sakaguchi National Institute for Materials Science
Tamio Oguchi
Tamio Oguchi Osaka University
Takeshi Ohshima
Takeshi Ohshima Japan Atomic Energy Agency
John Robertson
John Robertson University of Cambridge
Sherif A. El-Safty
Sherif A. El-Safty National Institute for Materials Science
Chunlei Wang
Chunlei Wang Florida International University
Erhard Kohn
Erhard Kohn North Carolina State University
Zlatko Sitar
Zlatko Sitar North Carolina State University

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