World's Best Scientists 2026 revealed!
Gregory C. Welch

Gregory C. Welch

D-Index & Metrics

Chemistry

D-Index
49
Citations
15438
World Ranking
14627
National Ranking
401

Gregory C. Welch 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 Gregory C. Welch sits on this spectrum.

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 publications 1,295+

This scientist: 200 publications — 32nd percentile

32% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Gregory C. Welch 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 Gregory C. Welch sits on this spectrum.

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 D-Index 159+

This scientist: 49 D-Index — 19th percentile

19% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Gregory C. Welch is affiliated with the University of Calgary in Canada. Their research primarily spans the fields of Engineering and Materials Science, with significant contributions in the subfields of Electrical and Electronic Engineering, Materials Chemistry, Polymers and Plastics, Organic Chemistry, and Biomedical Engineering.

The scientist's work covers a range of topics, notably organic electronics and photovoltaics, conducting polymers and their applications, crystallization and solubility studies, X-ray diffraction in crystallography, organic light-emitting diodes research, perovskite materials and applications, and luminescence and fluorescent materials.

Selected recent papers include:

  • "Roadmap on energy harvesting materials," 2023, Journal of Physics Materials
  • "Perylene diimide based non-fullerene acceptors: top performers and an emerging class featuring N-annulation," 2021, Journal of Materials Chemistry A
  • "Solution processed red organic light-emitting-diodes using an N-annulated perylene diimide fluorophore," 2020, Journal of Materials Chemistry C
  • "High open-circuit voltage roll-to-roll compatible processed organic photovoltaics," 2020, Journal of Materials Chemistry C
  • "Improved performance of solution processed OLEDs using N-annulated perylene diimide emitters with bulky side-chains," 2020, Materials Advances

Frequent co-authors in the scientist's publications include Benjamin S. Gelfand, Clément Cabanetos, Pablo Simón Marqués, Magali Allain, and Philippe Blanchard.

Publication venues where the scientist has contributed multiple works include:

  • The Cambridge Structural Database (19 publications)
  • Journal of Materials Chemistry C (11 publications)
  • ACS Applied Materials & Interfaces (7 publications)
  • Materials Chemistry Frontiers (4 publications)
  • Advanced Materials Interfaces (4 publications)

Best Publications

  • Reversible, Metal-Free Hydrogen Activation

    Gregory C. Welch;Ronan R. San Juan;Jason D. Masuda;Douglas W. Stephan

  • Solution-processed small-molecule solar cells with 6.7% efficiency

    Yanming Sun;Gregory C. Welch;Wei Lin Leong;Christopher J. Takacs

  • Facile heterolytic cleavage of dihydrogen by phosphines and boranes.

    Gregory C Welch;Douglas W Stephan

  • Metal‐Free Catalytic Hydrogenation

    Preston A. Chase;Gregory C. Welch;Titel Jurca;Douglas W. Stephan

  • Design and synthesis of molecular donors for solution-processed high-efficiency organic solar cells.

    Jessica E. Coughlin;Zachary B. Henson;Gregory C. Welch;Guillermo C. Bazan

  • Reactivity of “Frustrated Lewis Pairs”: Three-Component Reactions of Phosphines, a Borane, and Olefins

    Jenny S. J. McCahill;Gregory C. Welch;Douglas W. Stephan

  • Recent advances of non-fullerene, small molecular acceptors for solution processed bulk heterojunction solar cells

    Ala'a F. Eftaiha;Jon-Paul Sun;Ian G. Hill;Gregory C. Welch

  • Solar Cell Efficiency, Self-Assembly, and Dipole–Dipole Interactions of Isomorphic Narrow-Band-Gap Molecules

    Christopher J. Takacs;Yanming Sun;Gregory C. Welch;Louis A. Perez

  • Metal-Free Catalytic Hydrogenation of Polar Substrates by Frustrated Lewis Pairs

    Douglas W. Stephan;Sharonna Greenberg;Todd W. Graham;Preston Chase

  • Lewis Acid Adducts of Narrow Band Gap Conjugated Polymers

    Gregory C. Welch;Guillermo C. Bazan

  • Tuning Lewis acidity using the reactivity of “frustrated Lewis pairs”: facile formation of phosphine-boranes and cationic phosphonium-boranes

    Gregory C. Welch;Lourdes Cabrera;Preston A. Chase;Emily Hollink

  • Regioregular Pyridal[2,1,3]thiadiazole π-Conjugated Copolymers

    Lei Ying;Ben B.Y. Hsu;Hongmei Zhan;Hongmei Zhan;Gregory C. Welch

  • Synthesis, Self-Assembly, and Solar Cell Performance of N-Annulated Perylene Diimide Non-Fullerene Acceptors

    Arthur D. Hendsbee;Jon Paul Sun;Wai Kit Law;He Henry Yan

  • Pyridalthiadiazole-based narrow band gap chromophores.

    Zachary B. Henson;Gregory C. Welch;Thomas van der Poll;Guillermo C. Bazan

  • A modular molecular framework for utility in small-molecule solution-processed organic photovoltaic devices

    Gregory C. Welch;Louis A. Perez;Corey V. Hoven;Yuan Zhang

  • A New Chelating Anilido-Imine Donor Related to β-Diketiminato Ligands for Stabilization of Organoyttrium Cations

    Paul G. Hayes;Gregory C. Welch;David J. H. Emslie;Cassandra L. Noack

  • Photoinduced charge generation in a molecular bulk heterojunction material.

    Loren G Kaake;Jacek Jaroslaw Jasieniak;Ronald C Bakus;Gregory C Welch

  • Band gap control in conjugated oligomers via Lewis acids.

    Gregory C. Welch;Robert Coffin;Jeff Peet;Guillermo C. Bazan

  • Key components to the recent performance increases of solution processed non-fullerene small molecule acceptors

    Seth M. McAfee;Jessica M. Topple;Ian G. Hill;Gregory C. Welch

  • Improvement of interfacial contacts for new small-molecule bulk-heterojunction organic photovoltaics.

    Andres Garcia;Gregory C. Welch;Erin L. Ratcliff;David S. Ginley;David S. Ginley;David S. Ginley

Frequent Co-Authors

Guillermo C. Bazan
Guillermo C. Bazan National University of Singapore
Douglas W. Stephan
Douglas W. Stephan University of Toronto
Ian G. Hill
Ian G. Hill Dalhousie University
Alan J. Heeger
Alan J. Heeger University of California, Santa Barbara
Thuc-Quyen Nguyen
Thuc-Quyen Nguyen University of California, Santa Barbara
Dana C. Olson
Dana C. Olson DNV (USA)
Edward J. Kramer
Edward J. Kramer University of California, Santa Barbara
Chad Risko
Chad Risko University of Kentucky
Yanming Sun
Yanming Sun Beihang University
Yingping Zou
Yingping Zou Central South University

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