World's Best Scientists 2026 revealed!

D-Index & Metrics

Engineering and Technology

D-Index
42
Citations
7129
World Ranking
6562
National Ranking
215

Christian A. Kaufmann 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 Christian A. Kaufmann 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: 237 publications — 61st percentile

61% of scientists in this discipline score the same or lower.

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

Christian A. Kaufmann 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 Christian A. Kaufmann 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: 42 D-Index — 35th percentile

35% of scientists in this discipline score the same or lower.

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

Overview

Christian A. Kaufmann is affiliated with the Helmholtz-Zentrum Berlin für Materialien und Energie in Germany. Their research primarily spans several intersecting fields, including engineering and materials science, with a focus on electrical and electronic engineering, materials chemistry, and atomic and molecular physics.

The scientist's work emphasizes semiconductor materials and interfaces, chalcogenide semiconductor thin films, and perovskite materials and applications. Other notable topics covered in their research include quantum dots synthesis and properties, copper-based nanomaterials and applications, flood risk assessment and management, and silicon and solar cell technologies.

Christian A. Kaufmann has contributed extensively to academic literature. Selected recent papers include:

  • Perovskite/CIGS Tandem Solar Cells: From Certified 24.2% toward 30% and Beyond, 2022, ACS Energy Letters
  • Proton Radiation Hardness of Perovskite Tandem Photovoltaics, 2020, Joule
  • Advanced Characterization and Optimization of NiOx:Cu-SAM Hole-Transporting Bi-Layer for 23.4% Efficient Monolithic Cu(In,Ga)Se2-Perovskite Tandem Solar Cells, 2023, Advanced Functional Materials
  • Integration of rough RTP absorbers into CIGS-perovskite monolithic tandems by NiOx(:Cu)+SAM Hole-transporting Bi-layers, 2023, Solar Energy Materials and Solar Cells
  • Electronic Structure of the CdS/Cu(In,Ga)Se2 Interface of KF- and RbF-Treated Samples by Kelvin Probe and Photoelectron Yield Spectroscopy, 2021, ACS Applied Materials & Interfaces

Their frequent coauthors include:

  • Tim Kodalle
  • Tobias Bertram
  • Rutger Schlatmann
  • Iver Lauermann
  • R. Klenk

Christian A. Kaufmann's publications appear regularly in venues such as Solar Energy Materials and Solar Cells, ACS Applied Materials & Interfaces, Progress in Photovoltaics Research and Applications, Bautechnik, and the IEEE Journal of Photovoltaics.

Best Publications

  • Conformal monolayer contacts with lossless interfaces for perovskite single junction and monolithic tandem solar cells

    Amran Al-Ashouri;Artiom Magomedov;Marcel Roß;Marko Jošt

  • Perovskite/CIGS Tandem Solar Cells: From Certified 24.2% toward 30% and Beyond

    Unknown

  • Interpretation of admittance, capacitance-voltage, and current-voltage signatures in Cu(In,Ga)Se2 thin film solar cells

    Tobias Eisenbarth;Thomas Unold;Raquel Caballero;Christian A. Kaufmann

  • 21.6%-Efficient Monolithic Perovskite/Cu(In,Ga)Se2 Tandem Solar Cells with Thin Conformal Hole Transport Layers for Integration on Rough Bottom Cell Surfaces

    Marko Jošt;Tobias Bertram;Dibyashree Koushik;Jose A. Marquez

  • Proton Radiation Hardness of Perovskite Tandem Photovoltaics

    Felix Lang;Marko Jošt;Kyle Frohna;Eike Köhnen

  • The influence of Na on low temperature growth of CIGS thin film solar cells on polyimide substrates

    R. Caballero;C.A. Kaufmann;T. Eisenbarth;M. Cancela

  • Identifying the Real Minority Carrier Lifetime in Nonideal Semiconductors: A Case Study of Kesterite Materials

    Charles J. Hages;Alex Redinger;Sergiu Levcenko;Hannes Hempel

  • Experimental indication for band gap widening of chalcopyrite solar cell absorbers after potassium fluoride treatment

    P. Pistor;D. Greiner;C. A. Kaufmann;S. Brunken

  • Investigation of Cu(In,Ga)Se2 thin‐film formation during the multi‐stage co‐evaporation process

    R. Caballero;R. Caballero;C. A. Kaufmann;V. Efimova;T. Rissom

  • Transfer of Cu(In,Ga)Se2 thin film solar cells to flexible substrates using an in situ process control

    C.A. Kaufmann;A. Neisser;R. Klenk;R. Scheer

  • Junction formation by Zn(O,S) sputtering yields CIGSe‐based cells with efficiencies exceeding 18%

    Reiner Klenk;Alexander Steigert;Thorsten Rissom;Dieter Greiner

  • Comprehensive comparison of various techniques for the analysis of elemental distributions in thin films.

    D. Abou-Ras;R. Caballero;C.-H. Fischer;C.A. Kaufmann

  • Elucidating the Mechanism of an RbF Post Deposition Treatment in CIGS Thin Film Solar Cells

    Tim Kodalle;Marc D. Heinemann;Dieter Greiner;Hasan A. Yetkin

  • Depth profiling of Cu(In,Ga)Se2 thin films grown at low temperatures

    C.A. Kaufmann;R. Caballero;T. Unold;R. Hesse

  • Optical properties and mechanical stress in SiO2/Nb2O5 multilayers

    F Richter;H Kupfer;P Schlott;T Gessner

  • Influence of Na on Cu(In,Ga)Se2 solar cells grown on polyimide substrates at low temperature: Impact on the Cu(In,Ga)Se2/Mo interface

    R. Caballero;C. A. Kaufmann;T. Eisenbarth;A. Grimm

  • CuIn1−xGaxSe2-based thin-film solar cells by the selenization of sequentially evaporated metallic layers

    R. Caballero;C. Guillén;M. T. Gutiérrez;C. A. Kaufmann

  • Impact of the Ga concentration on the microstructure of CuIn1–xGaxSe2

    D. Abou-Ras;R. Caballero;C. A. Kaufmann;M. Nichterwitz

  • Surface Cu depletion of Cu(In,Ga)Se2 films: An investigation by hard X-ray photoelectron spectroscopy

    H. Mönig;H. Mönig;Ch.-H. Fischer;Ch.-H. Fischer;R. Caballero;C.A. Kaufmann

  • Characterization of metastabilities in Cu(In,Ga)Se2 thin-film solar cells by capacitance and current-voltage spectroscopy

    Tobias Eisenbarth;Raquel Caballero;Melanie Nichterwitz;Christian A. Kaufmann

  • Direct evidence for a reduced density of deep level defects at grain boundaries of Cu(In,Ga)Se2 thin films.

    H. Mönig;H. Mönig;Y. Smith;Y. Smith;R. Caballero;C. A. Kaufmann

  • Properties of CuInS2 thin films grown by a two-step process without H2S

    R. Klenk;U. Blieske;V. Dieterle;K. Ellmer

Frequent Co-Authors

Thomas Unold
Thomas Unold Helmholtz-Zentrum Berlin für Materialien und Energie
Reiner Klenk
Reiner Klenk Helmholtz-Zentrum Berlin für Materialien und Energie
Roland Scheer
Roland Scheer Martin Luther University Halle-Wittenberg
Daniel Abou-Ras
Daniel Abou-Ras Helmholtz-Zentrum Berlin für Materialien und Energie
Susan Schorr
Susan Schorr Helmholtz-Zentrum Berlin für Materialien und Energie
Sascha Sadewasser
Sascha Sadewasser International Iberian Nanotechnology Laboratory
Bernd Rech
Bernd Rech Helmholtz-Zentrum Berlin für Materialien und Energie
Steve Albrecht
Steve Albrecht Technical University of Berlin
Alejandro Pérez-Rodríguez
Alejandro Pérez-Rodríguez University of Barcelona
M.Ch. Lux-Steiner
M.Ch. Lux-Steiner Johannes Kepler University of Linz

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

As technology continues to reshape industries, online degrees offer flexible and affordable gateways into high-demand tech careers. Aspirants can explore ux degree programs to gain user experience and interface design skills now prized in software, product, and web development roles.

For those interested in leading projects and teams, understanding what is a project management degree is vital. These programs teach essential organizational and leadership skills, preparing graduates for management positions across engineering, IT, and construction fields.

The rise of fintech is driving demand for expertise in areas like cryptocurrencies and next-generation transaction systems. Prospective students can consider a blockchain degree online to build knowledge in secure digital finance, blockchain development, and crypto markets.

Technology’s influence extends to the sports world as well. Those interested in digital innovation, analytics, or management may want to pursue a sports management degree online, which opens doors in sports technology, e-sports, and business operations.

Best Scientists Citing Christian A. Kaufmann

Trending Scientists

Recently Published Articles