World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Materials Science 69 4614 4463 260 250 213 18066
Chemistry 69 6157 5585 447 402 198 17915

Anna Köhler publications per year

The chart shows the history of publications by Anna Köhler between 1994 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Anna Köhler published across 32 years, from 1994 to 2025, averaging 7.9 papers a year. Output peaked at 26 publications in 2022. 16 of the 252 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1994 to 2025. Vertical axis: number of publications, 0 to 26. Peak 26 publications in 2022. 1994: 2 publications 1995: 1 publication 1996: 3 publications 1997: 3 publications 1998: 4 publications 1999: 3 publications 2000: 1 publication 2001: 2 publications 2002: 4 publications 2003: 8 publications 2004: 7 publications 2005: 4 publications 2006: 3 publications 2007: 1 publication 2008: 4 publications 2009: 2 publications 2010: 4 publications 2011: 8 publications 2012: 8 publications 2013: 9 publications 2014: 7 publications 2015: 17 publications 2016: 15 publications 2017: 18 publications 2018: 14 publications 2019: 13 publications 2020: 16 publications 2021: 16 publications 2022: 26 publications 2023: 13 publications 2024: 6 publications 2025: 10 publications
1994 2025

252 publications in total across all disciplines

View publications per year as a table
Anna Köhler: publications per year, 1994 to 2025
Year Publications
1994 2
1995 1
1996 3
1997 3
1998 4
1999 3
2000 1
2001 2
2002 4
2003 8
2004 7
2005 4
2006 3
2007 1
2008 4
2009 2
2010 4
2011 8
2012 8
2013 9
2014 7
2015 17
2016 15
2017 18
2018 14
2019 13
2020 16
2021 16
2022 26
2023 13
2024 6
2025 10
Total 252
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Anna Köhler 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 Anna Köhler 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, 210–229 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: 213 publications — 35th percentile

35% 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
210–229 862 213
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
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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Anna Köhler 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 Anna Köhler 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, 68–69 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: 69 D-Index — 65th percentile

65% 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 69
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

Anna Köhler is a researcher affiliated with the University of Bayreuth in Germany. Their work principally spans the fields of materials science and engineering, with significant contributions in the subfields of electrical and electronic engineering, materials chemistry, polymers and plastics, electronic, optical and magnetic materials, and organic chemistry.

The main topics addressed in their research include:

  • Organic Electronics and Photovoltaics
  • Organic Light-Emitting Diodes Research
  • Conducting Polymers and Applications
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Perovskite Materials and Applications
  • Luminescence and Fluorescent Materials

Anna Köhler has published numerous papers in well-known scientific journals. Frequent publication venues include:

  • The Cambridge Structural Database
  • Advanced Functional Materials
  • Journal of Materials Chemistry C
  • Journal of the American Chemical Society
  • Advanced Optical Materials

Their recent notable publications feature the following works:

  • "A Deep Blue B,N-Doped Heptacene Emitter That Shows Both Thermally Activated Delayed Fluorescence and Delayed Fluorescence by Triplet-Triplet Annihilation," 2020, Journal of the American Chemical Society
  • "Diindolocarbazole - achieving multiresonant thermally activated delayed fluorescence without the need for acceptor units," 2022, Materials Horizons
  • "Double peak emission in lead halide perovskites by self-absorption," 2020, Journal of Materials Chemistry C
  • "Identifying the Signatures of Intermolecular Interactions in Blends of PM6 with Y6 and N4 Using Absorption Spectroscopy," 2022, Advanced Functional Materials
  • "A Fluorescence-Detected Coordination-Induced Spin State Switch," 2021, Journal of the American Chemical Society

Throughout their career, Anna Köhler has collaborated frequently with several scientists including Sergey Bagnich, Eli Zysman-Colman, David Beljonne, Yoann Olivier, and Alexandra M. Z. Slawin.

Best Publications

  • Effect of interchain interactions on the absorption and emission of poly(3-hexylthiophene)

    Peter J. Brown;D. Steve Thomas;Anna Köhler;Joanne S. Wilson

  • Triplet states in organic semiconductors

    Anna Köhler;Heinz Bässler

  • Spin-dependent exciton formation in π-conjugated compounds

    Joanne S. Wilson;A. S. Dhoot;A. J. A. B. Seeley;Muhammad S. Khan

  • The energy gap law for triplet states in Pt-containing conjugated polymers and monomers.

    Joanne S. Wilson;Nazia Chawdhury;Muna R. A. Al-Mandhary;Muhammad Younus

  • Fluorescence and Phosphorescence in Organic Materials

    Anna Köhler;Joanne S. Wilson;Richard H. Friend

  • Iodine Migration and its Effect on Hysteresis in Perovskite Solar Cells.

    Cheng Li;Steffen Tscheuschner;Fabian Paulus;Paul E. Hopkinson

  • Electronic Processes in Organic Semiconductors: An Introduction

    Anna Köhler;Heinz Bässler

  • Large magnetoresistance in nonmagnetic π -conjugated semiconductor thin film devices

    Ö. Mermer;G. Veeraraghavan;T. L. Francis;Y. Sheng

  • Charge separation in localized and delocalized electronic states in polymeric semiconductors

    Anna Köhler;D. A. dos Santos;David Beljonne;Z. Shuai

  • Charge transport in organic semiconductors.

    Heinz Bässler;Anna Köhler

  • Solution-processible conjugated electrophosphorescent polymers.

    Albertus J. Sandee;Charlotte K. Williams;Nicholas R. Evans;John E. Davies

  • The Singlet–Triplet Exchange Energy in Conjugated Polymers†

    Anna Köhler;David Beljonne

  • Triplet energy back transfer in conjugated polymers with pendant phosphorescent iridium complexes.

    Nicholas R. Evans;Lekshmi Sudha Devi;Chris S. K. Mak;Scott E. Watkins

  • Improving Processability and Efficiency of Resonant TADF Emitters: A Design Strategy

    David Hall;David Hall;Subeesh Madayanad Suresh;Paloma L. dos Santos;Eimantas Duda

  • Evolution of lowest singlet and triplet excited states with number of thienyl rings in platinum poly-ynes

    Nazia Chawdhury;Anna Köhler;Richard H. Friend;W.-Y. Wong

  • Morphology-dependent energy transfer within polyfluorene thin films

    Amena L. T. Khan;Paiboon Sreearunothai;Laura M. Herz;Michael J. Banach

  • Control of aggregate formation in poly(3‐hexylthiophene) by solvent, molecular weight, and synthetic method

    Christina Scharsich;Ruth H. Lohwasser;Michael Sommer;Udom Asawapirom

  • A Deep Blue B,N-Doped Heptacene Emitter That Shows Both Thermally Activated Delayed Fluorescence and Delayed Fluorescence by Triplet-Triplet Annihilation.

    Subeesh Madayanad Suresh;Eimantas Duda;David Hall;David Hall;Zhen Yao

  • Why Does the Electrical Conductivity in PEDOT:PSS Decrease with PSS Content? A Study Combining Thermoelectric Measurements with Impedance Spectroscopy

    Thomas Stöcker;Anna Köhler;Ralf Moos

  • Synthesis and Electronic Structure of Platinum-Containing Poly-ynes with Aromatic and Heteroaromatic Rings

    Nazia Chawdhury;Anna Köhler;Richard H. Friend;Muhammad Younus

  • Spatial extent of the singlet and triplet excitons in transition metal‐containing poly‐ynes

    David Beljonne;David Beljonne;H. F. Wittmann;Anna Köhler;S. Graham

Frequent Co-Authors

Heinz Bässler
Heinz Bässler Philipp University of Marburg
Richard H. Friend
Richard H. Friend University of Cambridge
Peter Strohriegl
Peter Strohriegl University of Bayreuth
Paul R. Raithby
Paul R. Raithby University of Bath
Mukundan Thelakkat
Mukundan Thelakkat University of Bayreuth
Andrew B. Holmes
Andrew B. Holmes University of Melbourne
David Beljonne
David Beljonne University of Mons
Ullrich Scherf
Ullrich Scherf University of Wuppertal
Scott E. Watkins
Scott E. Watkins Commonwealth Scientific and Industrial Research Organisation

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