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Helmut Cölfen
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Materials Science
Germany
2022

D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Materials Science 104 868 48 541 45753
Chemistry 103 1097 84 519 45351

Helmut Cölfen publications per year

The chart shows the history of publications by Helmut Cölfen between 1991 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Helmut Cölfen published across 35 years, from 1991 to 2025, averaging 16.9 papers a year. Output peaked at 41 publications in 2017. 21 of the 591 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1991 to 2025. Vertical axis: number of publications, 0 to 41. Peak 41 publications in 2017. 1991: 2 publications 1992: 2 publications 1993: 1 publication 1994: 5 publications 1995: 8 publications 1996: 5 publications 1997: 12 publications 1998: 12 publications 1999: 12 publications 2000: 9 publications 2001: 9 publications 2002: 14 publications 2003: 11 publications 2004: 20 publications 2005: 19 publications 2006: 24 publications 2007: 10 publications 2008: 27 publications 2009: 15 publications 2010: 24 publications 2011: 10 publications 2012: 18 publications 2013: 13 publications 2014: 16 publications 2015: 22 publications 2016: 34 publications 2017: 41 publications 2018: 30 publications 2019: 25 publications 2020: 22 publications 2021: 32 publications 2022: 30 publications 2023: 36 publications 2024: 17 publications 2025: 4 publications
1991 2025

591 publications in total across all disciplines

View publications per year as a table
Helmut Cölfen: publications per year, 1991 to 2025
Year Publications
1991 2
1992 2
1993 1
1994 5
1995 8
1996 5
1997 12
1998 12
1999 12
2000 9
2001 9
2002 14
2003 11
2004 20
2005 19
2006 24
2007 10
2008 27
2009 15
2010 24
2011 10
2012 18
2013 13
2014 16
2015 22
2016 34
2017 41
2018 30
2019 25
2020 22
2021 32
2022 30
2023 36
2024 17
2025 4
Total 591
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Helmut Cölfen 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 Helmut Cölfen 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: 541 publications — 89th percentile

89% 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
530–549 162 541
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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Helmut Cölfen 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 Helmut Cölfen 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, 104–105 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: 104 D-Index — 93rd percentile

93% 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
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 68 104
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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Research.com Recognitions

  • 2022 - Research.com Materials Science in Germany Leader Award

Overview

Helmut Cölfen was affiliated with the University of Konstanz in Germany. Their research primarily focused on Materials Science, with a significant number of publications covering subfields such as Materials Chemistry, Biomaterials, Biomedical Engineering, Renewable Energy, Sustainability and the Environment, and Atmospheric Science.

The scientist's work addressed a range of topics, predominantly relating to crystallization processes, nanoparticle synthesis, and applications in biomedical and environmental contexts. Major areas of research included:

  • Calcium Carbonate Crystallization and Inhibition
  • Bone Tissue Engineering Materials
  • Nanoparticles Nucleation Surface Interactions
  • Crystallization and Solubility Studies
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Nanocluster Synthesis and Applications
  • Quantum Dots Synthesis and Properties

Helmut Cölfen contributed extensively to various scientific journals, with frequent publications in:

  • Advanced Materials
  • Angewandte Chemie International Edition
  • Chemistry - A European Journal
  • The Journal of Physical Chemistry C
  • Angewandte Chemie

Some of the recent scientific papers authored or co-authored by Cölfen include:

  • "Chiral Seeded Growth of Gold Nanorods Into Fourfold Twisted Nanoparticles with Plasmonic Optical Activity" (2022, Advanced Materials)
  • "Toward Understanding the Formation Mechanism and OER Catalytic Mechanism of Hydroxides by In Situ and Operando Techniques" (2023, Angewandte Chemie International Edition)
  • "Crystal Nucleation and Growth of Inorganic Ionic Materials from Aqueous Solution: Selected Recent Developments, and Implications" (2022, Small)
  • "Chirality Communications Between Inorganic and Organic Compounds" (2021, SmartMat)
  • "Highly Hydrated Paramagnetic Amorphous Calcium Carbonate Nanoclusters as an MRI Contrast Agent" (2022, Nature Communications)

The researcher collaborated regularly with several co-authors. Frequent co-authors included:

  • Bing Ni
  • Guillermo González-Rubio
  • Zongkun Chen
  • Rose Rosenberg
  • Jonathan Avaro

Best Publications

  • Crystallization by particle attachment in synthetic, biogenic, and geologic environments

    James J. De Yoreo;James J. De Yoreo;Pupa U. P. A. Gilbert;Pupa U. P. A. Gilbert;Nico A. J. M. Sommerdijk;R. Lee Penn

  • Higher-order organization by mesoscale self-assembly and transformation of hybrid nanostructures

    Helmut Cölfen;Stephen Mann

  • Mesocrystals: Inorganic superstructures made by highly parallel crystallization and controlled alignment

    Helmut Cölfen;Markus Antonietti

  • Stable prenucleation calcium carbonate clusters.

    Denis Gebauer;Antje Völkel;Helmut Cölfen

  • Controlling Mineral Morphologies and Structures in Biological and Synthetic Systems

    Fiona C. Meldrum;Helmut Cölfen

  • Oriented attachment and mesocrystals: Non-classical crystallization mechanisms based on nanoparticle assembly

    Markus Niederberger;Helmut Cölfen

  • Pre-nucleation clusters as solute precursors in crystallisation

    Denis Gebauer;Matthias Kellermeier;Julian D. Gale;Lennart Bergström

  • Synthetic nacre by predesigned matrix-directed mineralization

    Li-Bo Mao;Huai-Ling Gao;Hong-Bin Yao;Lei Liu;Lei Liu

  • Double-hydrophilic block copolymers: synthesis and application as novel surfactants and crystal growth modifiers.

    Helmut Cölfen

  • Prenucleation clusters and non-classical nucleation

    Denis Gebauer;Helmut Cölfen

  • Mesocrystals and nonclassical crystallization

    Helmut Cölfen;Markus Antonietti

  • Mesocrystals—Ordered Nanoparticle Superstructures

    Rui-Qi Song;Helmut Cölfen

  • A Systematic Examination of the Morphogenesis of Calcium Carbonate in the Presence of a Double-Hydrophilic Block Copolymer

    Helmut Cölfen;Limin Qi

  • Crystal design of calcium carbonate microparticles using double-hydrophilic block copolymers

    Helmut Cölfen;Markus Antonietti

  • Bio-inspired crystal morphogenesis by hydrophilic polymers

    Shu-Hong Yu;Helmut Cölfen

  • Uniform hexagonal plates of vaterite CaCO3 mesocrystals formed by biomimetic mineralization

    An-Wu Xu;Markus Antonietti;Helmut Cölfen;Yue-Ping Fang

  • Synthesis and characterization of CdS nanoparticles stabilized by double hydrophilic block copolymers.

    Limin Qi;Helmut Cölfen;Markus Antonietti

  • Nonclassical crystallization: mesocrystals and morphology change of CaCO3 crystals in the presence of a polyelectrolyte additive.

    Tongxin Wang;Helmut Cölfen;Markus Antonietti

  • Mass production of bulk artificial nacre with excellent mechanical properties

    Huai-Ling Gao;Si-Ming Chen;Li-Bo Mao;Zhao-Qiang Song

  • Precipitation of carbonates: recent progress in controlled production of complex shapes

    Helmut Cölfen

  • Polymer-Controlled Morphosynthesis and Mineralization of Metal Carbonate Superstructures†

    Shu-Hong Yu;Helmut Cölfen;Markus Antonietti

Frequent Co-Authors

Markus Antonietti
Markus Antonietti Max Planck Society
Shu-Hong Yu
Shu-Hong Yu University of Science and Technology of China
Stephen E. Harding
Stephen E. Harding University of Nottingham
An-Wu Xu
An-Wu Xu University of Science and Technology of China
Stephen Mann
Stephen Mann University of Bristol
Sebastian Polarz
Sebastian Polarz University of Hannover
Helmut Schlaad
Helmut Schlaad University of Potsdam
James J. De Yoreo
James J. De Yoreo Pacific Northwest National Laboratory
Hans G. Börner
Hans G. Börner Humboldt-Universität zu Berlin
Dirk Volkmer
Dirk Volkmer University of Augsburg

External Links

Personal website of Helmut Cölfen Google Scholar page

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Best Scientists Citing Helmut Cölfen

Shu-Hong Yu

Shu-Hong Yu

University of Science and Technology of China

Publications: 102

Hiroaki Imai

Hiroaki Imai

Keio University

Publications: 98

Yuya Oaki

Yuya Oaki

Keio University

Publications: 90

Stephen E. Harding

Stephen E. Harding

University of Nottingham

Publications: 73

Markus Antonietti

Markus Antonietti

Max Planck Society

Publications: 71

Fiona C. Meldrum

Fiona C. Meldrum

University of Leeds

Publications: 68

James J. De Yoreo

James J. De Yoreo

Pacific Northwest National Laboratory

Publications: 62

Ruikang Tang

Ruikang Tang

Zhejiang University

Publications: 47

Wolfgang Peukert

Wolfgang Peukert

University of Erlangen-Nuremberg

Publications: 46

Lixin Wu

Lixin Wu

Jilin University

Publications: 43

Dirk G. Kurth

Dirk G. Kurth

University of Würzburg

Publications: 43

Stephen Mann

Stephen Mann

University of Bristol

Publications: 42

Takashi Kato

Takashi Kato

University of Tokyo

Publications: 41

Elson Longo

Elson Longo

Federal University of São Carlos

Publications: 41

Matthias Epple

Matthias Epple

University of Duisburg-Essen

Publications: 39

Markus Niederberger

Markus Niederberger

ETH Zurich

Publications: 37

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