World's Best Scientists 2026 revealed!

D-Index & Metrics

Materials Science

D-Index
59
Citations
22392
World Ranking
7229
National Ranking
1789

Engineering and Technology

D-Index
59
Citations
22494
World Ranking
2281
National Ranking
713

Oki Gunawan publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where Oki Gunawan sits on this spectrum.

38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38 publications 804+

This scientist: 197 publications — 47th percentile

47% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

Oki Gunawan D-index placement in Engineering and Technology in 2026

The chart shows the D-index (discipline H-index) distribution of Engineering and Technology scientists ranked by Research.com in 2026. The highlighted bar marks where Oki Gunawan sits on this spectrum.

30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 59 D-Index — 77th percentile

77% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

Overview

Oki Gunawan is affiliated with IBM in the United States and has contributed extensively to the fields of engineering and materials science. Their research is primarily concentrated in electrical and electronic engineering, alongside significant work in materials chemistry, atomic and molecular physics, and optics. They have also engaged in studies related to electronic, optical, and magnetic materials as well as global and planetary change.

The scientist has published a number of papers across various respected venues, reflecting a broad scope of interests. Recent publications include:

  • "p-Type molecular doping by charge transfer in halide perovskite," 2021, Materials Advances
  • "2X reduction of STT-MRAM switching current using double spin-torque magnetic tunnel junction," 2021, 2021 IEEE International Electron Devices Meeting (IEDM)
  • "Reliable Sub-Nanosecond Switching in Magnetic Tunnel Junctions for MRAM Applications," 2022, IEEE Transactions on Electron Devices
  • "From Amorphous to Polycrystalline Rubrene: Charge Transport in Organic Semiconductors Paralleled with Silicon," 2022, Advanced Functional Materials
  • "Next-generation geospatial-temporal information technologies for disaster management," 2020, IBM Journal of Research and Development

Frequent publication venues include:

  • Advanced Materials
  • Proceedings of the International Conference on Hybrid and Organic Photovoltaics
  • arXiv (Cornell University)
  • Materials Advances
  • 2021 IEEE International Electron Devices Meeting (IEDM)

Oki Gunawan's research covers several specialized topics, notably:

  • Chalcogenide Semiconductor Thin Films
  • Magneto-Optical Properties and Applications
  • Quantum Dots Synthesis And Properties
  • Magnetic properties of thin films
  • Perovskite Materials and Applications
  • Advanced Memory and Neural Computing
  • Copper-based nanomaterials and applications

Their work frequently intersects with a number of collaborators, with the most frequent co-authors being Julie Euvrard, Antoine Kahn, David B. Mitzi, G. Hu, and J. Z. Sun.

Best Publications

  • Device Characteristics of CZTSSe Thin‐Film Solar Cells with 12.6% Efficiency

    Wei Wang;Mark T. Winkler;Oki Gunawan;Tayfun Gokmen

  • The path towards a high-performance solution-processed kesterite solar cell ☆

    David B. Mitzi;Oki Gunawan;Teodor K. Todorov;Kejia Wang

  • Thin film solar cell with 8.4% power conversion efficiency using an earth‐abundant Cu2ZnSnS4 absorber

    Byungha Shin;Oki Gunawan;Yu Zhu;Nestor A. Bojarczuk

  • Beyond 11% Efficiency: Characteristics of State‐of‐the‐Art Cu2ZnSn(S,Se)4 Solar Cells

    Teodor K. Todorov;Jiang Tang;Santanu Bag;Oki Gunawan

  • Device characteristics of a 10.1% hydrazine-processed Cu2ZnSn(Se,S)4 solar cell

    D. Aaron R. Barkhouse;Oki Gunawan;Tayfun Gokmen;Teodor K. Todorov

  • Thermally evaporated Cu2ZnSnS4 solar cells

    K. Wang;O. Gunawan;T. Todorov;B. Shin

  • Band tailing and efficiency limitation in kesterite solar cells

    Tayfun Gokmen;Oki Gunawan;Teodor K. Todorov;David B. Mitzi

  • A High Efficiency Electrodeposited Cu2ZnSnS4 Solar Cell

    Shafaat Ahmed;Kathleen B. Reuter;Oki Gunawan;Lian Guo

  • Cu2ZnSnSe4 Thin‐Film Solar Cells by Thermal Co‐evaporation with 11.6% Efficiency and Improved Minority Carrier Diffusion Length

    Yun Seog Lee;Talia Gershon;Oki Gunawan;Teodor K. Todorov

  • Loss mechanisms in hydrazine-processed Cu2ZnSn(Se,S)4 solar cells

    Oki Gunawan;Teodor K. Todorov;David B. Mitzi

  • High Efficiency Cu2ZnSn(S,Se)4 Solar Cells by Applying a Double In2S3/CdS Emitter

    Jeehwan Kim;Homare Hiroi;Teodor K. Todorov;Oki Gunawan

  • Solution‐processed Cu(In,Ga)(S,Se)2 absorber yielding a 15.2% efficient solar cell

    Teodor K. Todorov;Oki Gunawan;Tayfun Gokmen;David B. Mitzi

  • Flexible CIGS, CdTe and a-Si:H based thin film solar cells: A review

    Jeyakumar Ramanujam;Jeyakumar Ramanujam;Douglas M. Bishop;Teodor K. Todorov;Oki Gunawan

  • Thin-Film Deposition and Characterization of a Sn-Deficient Perovskite Derivative Cs2SnI6

    Bayrammurad Saparov;Jon-Paul Sun;Weiwei Meng;Zewen Xiao

  • Low band gap liquid-processed CZTSe solar cell with 10.1% efficiency

    Santanu Bag;Oki Gunawan;Tayfun Gokmen;Yu Zhu

  • Valley susceptibility of an interacting two-dimensional electron system.

    O. Gunawan;Y. P. Shkolnikov;K. Vakili;T. Gokmen

  • Band alignment at the Cu2ZnSn(SxSe1−x)4/CdS interface

    Richard Haight;Aaron Barkhouse;Oki Gunawan;Byungha Shin

  • Optical designs that improve the efficiency of Cu2ZnSn(S,Se)4 solar cells

    Mark T. Winkler;Wei Wang;Oki Gunawan;Harold J. Hovel

  • Photovoltaic Materials and Devices Based on the Alloyed Kesterite Absorber (AgxCu1–x)2ZnSnSe4

    Talia Gershon;Yun Seog Lee;Priscilla Antunez;Ravin Mankad

  • Monolithic Perovskite‐CIGS Tandem Solar Cells via In Situ Band Gap Engineering

    Teodor Todorov;Talia Gershon;Oki Gunawan;Yun Seog Lee

Frequent Co-Authors

David B. Mitzi
David B. Mitzi Duke University
Supratik Guha
Supratik Guha Argonne National Laboratory
Emanuel Tutuc
Emanuel Tutuc The University of Texas at Austin
Lydia Helena Wong
Lydia Helena Wong Nanyang Technological University
Jeffrey W. Sleight
Jeffrey W. Sleight IBM (United States)
Devendra K. Sadana
Devendra K. Sadana IBM (United States)
Matthew Copel
Matthew Copel IBM (United States)
Qing Cao
Qing Cao IBM (United States)
Andrew J. Kellock
Andrew J. Kellock IBM (United States)

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