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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 99 1316 1168 234 226 779 39869

Ian D. Williams publications per year

The chart shows the history of publications by Ian D. Williams between 1961 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ian D. Williams published across 66 years, from 1961 to 2026, averaging 22.3 papers a year. Output peaked at 94 publications in 2018. 17 of the 1,472 publications appeared in the last two years.

No. of publications
20 40 60 80
Bar chart. Horizontal axis: year, 1961 to 2026. Vertical axis: number of publications, 0 to 94. Peak 94 publications in 2018. 1961: 1 publication 1962: 0 publications 1963: 0 publications 1964: 1 publication 1965: 0 publications 1966: 1 publication 1967: 2 publications 1968: 3 publications 1969: 2 publications 1970: 1 publication 1971: 0 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 1 publication 1982: 4 publications 1983: 7 publications 1984: 7 publications 1985: 9 publications 1986: 10 publications 1987: 18 publications 1988: 7 publications 1989: 5 publications 1990: 9 publications 1991: 4 publications 1992: 4 publications 1993: 5 publications 1994: 0 publications 1995: 3 publications 1996: 13 publications 1997: 21 publications 1998: 17 publications 1999: 19 publications 2000: 28 publications 2001: 50 publications 2002: 27 publications 2003: 36 publications 2004: 46 publications 2005: 53 publications 2006: 78 publications 2007: 53 publications 2008: 46 publications 2009: 35 publications 2010: 42 publications 2011: 58 publications 2012: 56 publications 2013: 55 publications 2014: 33 publications 2015: 40 publications 2016: 64 publications 2017: 45 publications 2018: 94 publications 2019: 61 publications 2020: 78 publications 2021: 72 publications 2022: 60 publications 2023: 56 publications 2024: 15 publications 2025: 16 publications 2026: 1 publication
1961 2026

1,472 publications in total across all disciplines

View publications per year as a table
Ian D. Williams: publications per year, 1961 to 2026
Year Publications
1961 1
1962 0
1963 0
1964 1
1965 0
1966 1
1967 2
1968 3
1969 2
1970 1
1971 0
1972 0
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 1
1982 4
1983 7
1984 7
1985 9
1986 10
1987 18
1988 7
1989 5
1990 9
1991 4
1992 4
1993 5
1994 0
1995 3
1996 13
1997 21
1998 17
1999 19
2000 28
2001 50
2002 27
2003 36
2004 46
2005 53
2006 78
2007 53
2008 46
2009 35
2010 42
2011 58
2012 56
2013 55
2014 33
2015 40
2016 64
2017 45
2018 94
2019 61
2020 78
2021 72
2022 60
2023 56
2024 15
2025 16
2026 1
Total 1,472
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Ian D. Williams 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 Ian D. Williams 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, 761–780 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: 779 publications — 97th percentile

97% 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
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 45 779
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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Ian D. Williams 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 Ian D. Williams 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, 98–99 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: 99 D-Index — 93rd percentile

93% 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
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 99
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

Ian D. Williams is affiliated with the Hong Kong University of Science and Technology in China. Their research primarily spans the fields of Materials Science and Chemistry, with a significant focus on Materials Chemistry and Organic Chemistry as subfields. Their scientific work involves multiple specialized topics, including:

  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Luminescence and Fluorescent Materials
  • Organometallic Complex Synthesis and Catalysis
  • Perovskite Materials and Applications
  • Synthetic Organic Chemistry Methods
  • Crystallography and Molecular Interactions

Their publication record includes numerous contributions to high-impact journals and conference venues. Notable recent papers are:

  • "Two Are Better Than One: A Design Principle for Ultralong-Persistent Luminescence of Pure Organics" (2020), published in Advanced Materials
  • "Rational Design of NIR-II AIEgens with Ultrahigh Quantum Yields for Photo- and Chemiluminescence Imaging" (2022), published in Journal of the American Chemical Society
  • "How to Manipulate Through-Space Conjugation and Clusteroluminescence of Simple AIEgens with Isolated Phenyl Rings" (2021), published in Journal of the American Chemical Society
  • "Highly efficient singlet oxygen generation, two-photon photodynamic therapy and melanoma ablation by rationally designed mitochondria-specific near-infrared AIEgens" (2020), published in Chemical Science
  • "Organic Long-Persistent Luminescence from a Single-Component Aggregate" (2022), published in Journal of the American Chemical Society

Frequently publishing alongside a range of coauthors, Ian D. Williams has collaborated extensively with Herman H. Y. Sung, Guochen Jia, Wa-Hung Leung, Wai-Man Cheung, and Zhenyang Lin. These collaborations have contributed to a body of work reflecting hundreds of documented joint publications.

Their scholarly output appears regularly in several prominent publication venues. Among the venues with the highest number of publications are:

  • The Cambridge Structural Database
  • Journal of the American Chemical Society
  • Organometallics
  • Angewandte Chemie International Edition
  • Angewandte Chemie

Their research contributions emphasize analytical and synthetic methods within crystallography, luminescent materials, and organometallic chemistry, demonstrating interdisciplinary integration between chemistry and materials science. The work also intersects with subfields such as electrical and electronic engineering and molecular biology to some extent.

Best Publications

  • A chemically functionalizable nanoporous material (Cu3(TMA)2(H2O)3)n

    Unknown

  • Ruthenium-catalyzed cycloaddition of alkynes and organic azides

    Valery Fokin;Guocheng Jia;K. Barry Sharpless

  • Synthesis, Light Emission, Nanoaggregation, and Restricted Intramolecular Rotation of 1,1-Substituted 2,3,4,5-Tetraphenylsiloles

    Junwu Chen;Charles C. W. Law;Jacky W. Y. Lam;Yuping Dong

  • Twisted Intramolecular Charge Transfer and Aggregation-Induced Emission of BODIPY Derivatives

    Rongrong Hu;Erik Lager;Angelica Aguilar-Aguilar;Jianzhao Liu

  • Synergy between Twisted Conformation and Effective Intermolecular Interactions: Strategy for Efficient Mechanochromic Luminogens with High Contrast

    Wangzhang Yuan;Yeqiang Tan;Yongyang Gong;Ping Lu

  • Solvothermal Synthesis of a Stable Coordination Polymer with Copper-I−Copper-II Dimer Units: [Cu4{1,4-C6H4(COO)2}3(4,4‘-bipy)2]n

    Samuel M.F. Lo;Stephen S.Y. Chui;Lai Yung Shek;Zhenyang Lin

  • Highly Efficient Circularly Polarized Electroluminescence from Aggregation-Induced Emission Luminogens with Amplified Chirality and Delayed Fluorescence

    Fengyan Song;Zeng Xu;Qiushuo Zhang;Zheng Zhao

  • Switching the light emission of (4-biphenylyl)phenyldibenzofulvene by morphological modulation: crystallization-induced emission enhancement

    Yongqiang Dong;Yongqiang Dong;Jacky Wing Yip Lam;Anjun Qin;Zhen Li

  • Aggregation-Induced Emission: Effects of Molecular Structure, Solid-State Conformation, and Morphological Packing Arrangement on Light-Emitting Behaviors of Diphenyldibenzofulvene Derivatives

    Hui Tong;Yongqiang Dong;Yuning Hong;Matthias Häussler

  • Structural control of the photoluminescence of silole regioisomers and their utility as sensitive regiodiscriminating chemosensors and efficient electroluminescent materials.

    Zhen Li;Yongqiang Dong;Baoxiu Mi;Youhong Tang

  • Protein detection and quantitation by tetraphenylethene-based fluorescent probes with aggregation-induced emission characteristics.

    Hui Tong;Yuning Hong;Yongqiang Dong;Matthias Häussler

  • Bright Near-Infrared Aggregation-Induced Emission Luminogens with Strong Two-Photon Absorption, Excellent Organelle Specificity, and Efficient Photodynamic Therapy Potential.

    Zheng Zheng;Tianfu Zhang;Haixiang Liu;Yuncong Chen

  • Defluorination of perfluoroolefins by divalent lanthanoid reagents: Activating C-F bonds

    Patricia L. Watson;Thomas H. Tulip;Ian Williams

  • Functionalized Siloles: Versatile Synthesis, Aggregation‐Induced Emission, and Sensory and Device Applications

    Zhen Li;Yong Qiang Dong;Jacky W. Y. Lam;Jiaxin Sun

  • Rational Design of NIR-II AIEgens with Ultrahigh Quantum Yields for Photo- and Chemiluminescence Imaging.

    Unknown

  • Efficient Light Emitters in the Solid State: Synthesis, Aggregation-Induced Emission, Electroluminescence, and Sensory Properties of Luminogens with Benzene Cores and Multiple Triarylvinyl Peripherals

    Carrie Yin Kwan Chan;Zujin Zhao;Jacky Wing Yip Lam;Jianzhao Liu

  • Structure and chemistry of the complex tetrakis(.eta.5-pentamethylcyclopentadienyl)tetrakis(.mu.3-chloro)tetraruthenium(II): a useful precursor to (pentamethylcyclopentadienyl)ruthenium(0), -(II), and -(IV) complexes

    Paul J. Fagan;Wayne S. Mahoney;Joseph C. Calabrese;Ian D. Williams

  • Multiple yet Controllable Photoswitching in a Single AIEgen System.

    Peifa Wei;Jingxuan Zhang;Zheng Zhao;Yuncong Chen

  • Aggregation-induced and crystallization-enhanced emissions of 1,2-diphenyl-3,4-bis(diphenylmethylene)-1-cyclobutene

    Yongqiang Dong;Yongqiang Dong;Jacky Wing Yip Lam;Anjun Qin;Jiaxin Sun

  • Why Do Simple Molecules with “Isolated” Phenyl Rings Emit Visible Light?

    Haoke Zhang;Xiaoyan Zheng;Ni Xie;Zikai He

  • Facile Synthesis of Red/NIR AIE Luminogens with Simple Structures, Bright Emissions, and High Photostabilities, and Their Applications for Specific Imaging of Lipid Droplets and Image-Guided Photodynamic Therapy

    Dong Wang;Huifang Su;Ryan T. K. Kwok;Guogang Shan

  • Molecular anchors in the solid state: Restriction of intramolecular rotation boosts emission efficiency of luminogen aggregates to unity

    Zujin Zhao;Ping Lu;Jacky Wing Yip Lam;Zhiming Wang

  • Synthesis and second-order nonlinear optical properties of three coordinate organoboranes with diphenylphosphino and ferrocenyl groups as electron donors: crystal and molecular structures of (E)-DCHCHB(mes)2 and DCCB(mes)2 [D P(C6H52, (η-C5H5)Fe(η-C5H4); mes = 2,4,6-(CH3)3C6H2]

    Zheng Yuan;Nicholas J. Taylor;Yan Sun;Todd B. Marder

  • Ruthenium-Catalyzed Cycloaddition of Alkynes and Organic Azides.

    Li Zhang;Xinguo Chen;Peng Xue;Herman H. Y. Sun

Frequent Co-Authors

Ben Zhong Tang
Ben Zhong Tang Chinese University of Hong Kong, Shenzhen
Jacky Wing Yip Lam
Jacky Wing Yip Lam Hong Kong University of Science and Technology
Zhenyang Lin
Zhenyang Lin Hong Kong University of Science and Technology
Guochen Jia
Guochen Jia Hong Kong University of Science and Technology
Ryan T. K. Kwok
Ryan T. K. Kwok Hong Kong University of Science and Technology
Anjun Qin
Anjun Qin South China University of Technology
Hoi Sing Kwok
Hoi Sing Kwok Hong Kong University of Science and Technology
Kam Sing Wong
Kam Sing Wong Hong Kong University of Science and Technology
Yongqiang Dong
Yongqiang Dong Beijing Normal University
Zujin Zhao
Zujin Zhao South China University of Technology

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