World's Best Scientists 2026 revealed!
Randy J. Ellingson

Randy J. Ellingson

D-Index & Metrics

Materials Science

D-Index
59
Citations
20244
World Ranking
7233
National Ranking
1791

Randy J. Ellingson 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 Randy J. Ellingson sits on this spectrum.

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 publications 1,163+

This scientist: 274 publications — 53rd percentile

53% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,163 publications or more.

Randy J. Ellingson 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 Randy J. Ellingson sits on this spectrum.

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 D-Index 165+

This scientist: 59 D-Index — 44th percentile

44% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 165 D-Index or more.

Overview

Randy J. Ellingson is affiliated with the University of Toledo in the United States and has contributed extensively to research in engineering and materials science. Their work primarily intersects electrical and electronic engineering with materials chemistry, focusing on applications within photovoltaics and semiconductor materials.

The scientist's most recent research includes publications on perovskite solar cells and related materials. Notable papers include:

  • Rational design of Lewis base molecules for stable and efficient inverted perovskite solar cells, 2023, Science
  • Low-bandgap mixed tin-lead iodide perovskites with reduced methylammonium for simultaneous enhancement of solar cell efficiency and stability, 2020, Nature Energy
  • Arylammonium-Assisted Reduction of the Open-Circuit Voltage Deficit in Wide-Bandgap Perovskite Solar Cells: The Role of Suppressed Ion Migration, 2020, ACS Energy Letters
  • Influence of Charge Transport Layers on Capacitance Measured in Halide Perovskite Solar Cells, 2020, Joule
  • Incorporating Potassium Citrate to Improve the Performance of Tin-Lead Perovskite Solar Cells, 2023, Advanced Energy Materials

Ellingson's research topics cover a range of areas closely related to solar energy materials and device optimization. The main topics include:

  • Chalcogenide Semiconductor Thin Films
  • Quantum Dots Synthesis And Properties
  • Perovskite Materials and Applications
  • Solar cell performance optimization
  • Copper-based nanomaterials and applications
  • Conducting polymers and applications
  • Silicon and Solar Cell Technologies

Frequent collaborators in Ellingson's work indicate active engagement with researchers across related fields. These coauthors include Michael J. Heben, Yanfa Yan, Adam B. Phillips, Zhaoning Song, and Ebin Bastola.

Publications have appeared consistently in multiple specialized venues with repeated contributions to:

  • 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC)
  • Solar RRL
  • ACS Applied Materials & Interfaces
  • Solar Energy Materials and Solar Cells
  • ACS Applied Energy Materials

Ellingson's body of work is situated within the broad fields of engineering and materials science, emphasizing subfields such as electrical and electronic engineering, materials chemistry, polymers and plastics, atomic and molecular physics, and biomedical engineering. This multidisciplinary approach supports advances in energy materials, notably in thin-film semiconductors and perovskite-based photovoltaic technologies.

Best Publications

  • Highly Efficient Multiple Exciton Generation in Colloidal PbSe and PbS Quantum Dots

    Randy J. Ellingson;Matthew C. Beard;Justin C. Johnson;Pingrong Yu

  • Semiconductor quantum dots and quantum dot arrays and applications of multiple exciton generation to third-generation photovoltaic solar cells.

    Arthur J. Nozik;Matthew C. Beard;Joseph M. Luther;Matt Law

  • Schottky Solar Cells Based on Colloidal Nanocrystal Films

    Joseph M. Luther;Matt Law;Matthew C. Beard;Qing Song

  • Multiple Exciton Generation in Colloidal Silicon Nanocrystals

    Matthew C. Beard;Kelly P. Knutsen;Pingrong Yu;Joseph M. Luther

  • PbTe Colloidal Nanocrystals: Synthesis, Characterization, and Multiple Exciton Generation

    James E Murphy;Matthew C Beard;Andrew G Norman;S Phillip Ahrenkiel

  • Low-bandgap mixed tin-lead iodide perovskite absorbers with long carrier lifetimes for all-perovskite tandem solar cells

    Dewei Zhao;Yue Yu;Changlei Wang;Changlei Wang;Weiqiang Liao;Weiqiang Liao

  • Rational design of Lewis base molecules for stable and efficient inverted perovskite solar cells

    Unknown

  • Femtosecond IR Study of Excited-State Relaxation and Electron-Injection Dynamics of Ru(dcbpy)2(NCS)2 in Solution and on Nanocrystalline TiO2 and Al2O3 Thin Films

    John B. Asbury;Randy J. Ellingson;Hirendra N. Ghosh;Suzanne Ferrere

  • Energy payback time (EPBT) and energy return on energy invested (EROI) of solar photovoltaic systems: A systematic review and meta-analysis

    Khagendra P. Bhandari;Jennifer M. Collier;Randy J. Ellingson;Defne S. Apul

  • Photoenhancement of Luminescence in Colloidal CdSe Quantum Dot Solutions

    Marcus Jones;Jovan Nedeljkovic;Randy J. Ellingson;and Arthur J. Nozik

  • Fabrication of Efficient Low-Bandgap Perovskite Solar Cells by Combining Formamidinium Tin Iodide with Methylammonium Lead Iodide.

    Weiqiang Liao;Dewei Zhao;Yue Yu;Niraj Shrestha

  • Dynamics of Electron Injection in Nanocrystalline Titanium Dioxide Films Sensitized with (Ru(4,4'-dicarboxy-2,2'-bipyridine)2(NCS)2) by Infrared Transient Absorption

    Randy J. Ellingson;John B. Asbury;Sue Ferrere;Hirendra N. Ghosh

  • Reducing Saturation-Current Density to Realize High-Efficiency Low-Bandgap Mixed Tin–Lead Halide Perovskite Solar Cells

    Chongwen Li;Zhaoning Song;Dewei Zhao;Chuanxiao Xiao

  • Quantum Dot Size Dependent J-V Characteristics in Heterojunction ZnO/PbS Quantum Dot Solar Cells

    Jianbo Gao;Joseph M. Luther;Octavi Escala Semonin;Octavi Escala Semonin;Randy J. Ellingson

  • n-Type transition metal oxide as a hole extraction layer in PbS quantum dot solar cells.

    Jianbo Gao;Jianbo Gao;Craig L. Perkins;Joseph M. Luther;Mark C. Hanna

  • Multiple Exciton Generation in Films of Electronically Coupled PbSe Quantum Dots

    Joseph M. Luther;Matthew C. Beard;Qing Song;Matt Law

  • Impact of Processing Temperature and Composition on the Formation of Methylammonium Lead Iodide Perovskites

    Zhaoning Song;Suneth C. Watthage;Adam B. Phillips;Brandon L. Tompkins

  • Variations in the Quantum Efficiency of Multiple Exciton Generation for a Series of Chemically Treated PbSe Nanocrystal Films

    Matthew C. Beard;Aaron G. Midgett;Matt Law;Octavi E. Semonin

  • Low-temperature plasma-enhanced atomic layer deposition of tin oxide electron selective layers for highly efficient planar perovskite solar cells

    Changlei Wang;Changlei Wang;Dewei Zhao;Corey R. Grice;Weiqiang Liao

  • Recombination lifetime of In0.53Ga0.47As as a function of doping density

    R. K. Ahrenkiel;R. Ellingson;S. Johnston;M. Wanlass

  • Synergistic Effects of Lead Thiocyanate Additive and Solvent Annealing on the Performance of Wide-Bandgap Perovskite Solar Cells

    Yue Yu;Changlei Wang;Corey R. Grice;Niraj Shrestha

Frequent Co-Authors

Michael J. Heben
Michael J. Heben University of Toledo
Yanfa Yan
Yanfa Yan University of Toledo
Zhaoning Song
Zhaoning Song University of Toledo
Arthur J. Nozik
Arthur J. Nozik University of Colorado Boulder
Changlei Wang
Changlei Wang Soochow University
Matthew C. Beard
Matthew C. Beard National Renewable Energy Laboratory
Dewei Zhao
Dewei Zhao Sichuan University
Garry Rumbles
Garry Rumbles National Renewable Energy Laboratory
Robert W. Collins
Robert W. Collins University of Toledo
Joseph M. Luther
Joseph M. Luther National Renewable Energy Laboratory

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