Christian A. Kaufmann

7.5k total citations · 1 hit paper
244 papers, 5.2k citations indexed

About

Christian A. Kaufmann is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Christian A. Kaufmann has authored 244 papers receiving a total of 5.2k indexed citations (citations by other indexed papers that have themselves been cited), including 200 papers in Electrical and Electronic Engineering, 153 papers in Materials Chemistry and 61 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Christian A. Kaufmann's work include Chalcogenide Semiconductor Thin Films (169 papers), Quantum Dots Synthesis And Properties (139 papers) and Copper-based nanomaterials and applications (70 papers). Christian A. Kaufmann is often cited by papers focused on Chalcogenide Semiconductor Thin Films (169 papers), Quantum Dots Synthesis And Properties (139 papers) and Copper-based nanomaterials and applications (70 papers). Christian A. Kaufmann collaborates with scholars based in Germany, Spain and Switzerland. Christian A. Kaufmann's co-authors include Thomas Unold, R. Caballero, Hans‐Werner Schock, R. Klenk, Tobias Eisenbarth, D. Greiner, Rutger Schlatmann, Iver Lauermann, Tim Kodalle and Martha Ch. Lux‐Steiner and has published in prestigious journals such as Physical Review Letters, SHILAP Revista de lepidopterología and Energy & Environmental Science.

In The Last Decade

Christian A. Kaufmann

241 papers receiving 5.1k citations

Hit Papers

Perovskite/CIGS Tandem Solar Cells: From Certified 24.2% ... 2022 2026 2023 2024 2022 50 100 150 200 250
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Perovskite/CIGS Tandem Solar Cells: From Certified 24.2% toward 30% and Beyond
    2022 255 citations Marko Jošt, Eike Köhnen et al. ACS Energy Letters profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Christian A. Kaufmann Germany 39 4.1k 3.6k 1.0k 255 217 244 5.2k
Robert Patterson Australia 31 2.8k 0.7× 2.3k 0.6× 522 0.5× 378 1.5× 28 0.1× 136 3.9k
M. L. Sanjuán Spain 27 1.1k 0.3× 1.5k 0.4× 105 0.1× 185 0.7× 73 0.3× 121 2.6k
Martin O. Jones United Kingdom 31 1.2k 0.3× 3.0k 0.8× 199 0.2× 216 0.8× 128 0.6× 90 4.6k
Masahito Mochizuki Japan 42 750 0.2× 1.7k 0.5× 2.7k 2.7× 568 2.2× 48 0.2× 435 8.2k
S. K. Srivastava India 30 1.0k 0.2× 1.4k 0.4× 349 0.3× 190 0.7× 16 0.1× 227 3.2k
Kenneth A. Jackson United States 40 1.1k 0.3× 4.1k 1.1× 714 0.7× 747 2.9× 43 0.2× 129 7.4k
G. Guillot France 35 2.1k 0.5× 975 0.3× 1.7k 1.7× 361 1.4× 797 3.7× 262 6.8k
Satoshi Wada Japan 27 1.4k 0.3× 635 0.2× 981 1.0× 289 1.1× 124 0.6× 275 3.0k
John W. Lawson United States 36 900 0.2× 849 0.2× 182 0.2× 197 0.8× 221 1.0× 188 3.7k
Shiliang Wang China 34 840 0.2× 1.2k 0.3× 456 0.4× 741 2.9× 75 0.3× 240 4.9k

Countries citing papers authored by Christian A. Kaufmann

Since Specialization
Citations

This map shows the geographic impact of Christian A. Kaufmann's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Christian A. Kaufmann with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Christian A. Kaufmann more than expected).

Fields of papers citing papers by Christian A. Kaufmann

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Christian A. Kaufmann. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Christian A. Kaufmann. The network helps show where Christian A. Kaufmann may publish in the future.

Co-authorship network of co-authors of Christian A. Kaufmann

This figure shows the co-authorship network connecting the top 25 collaborators of Christian A. Kaufmann. A scholar is included among the top collaborators of Christian A. Kaufmann based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Christian A. Kaufmann. Christian A. Kaufmann is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Bertram, Tobias, Klaus Jäger, Nikolaus Weinberger, et al.. (2025). Improving Perovskite/CIGS Tandem Solar Cells for Higher Power Conversion Efficiency through Light Management and Bandgap Engineering. ACS Applied Materials & Interfaces. 17(40). 56250–56255.
2.
Prathapani, Sateesh, Nikolaus Weinberger, Michele Melchiorre, et al.. (2025). Impact of Minimal Silver Incorporation on Chalcopyrite Absorbers—Origins for Improved Open‐Circuit Voltages in (Ag,Cu)(In,Ga)Se2 Solar Cells. Solar RRL. 9(5). 1 indexed citations
3.
Kodalle, Tim, Raul Garcia‐Diez, Claudia Hartmann, et al.. (2024). Chemical Interface Structures in CdS/RbInSe2/Cu(In,Ga)Se2 Thin‐Film Solar Cell Stacks. Advanced Functional Materials. 34(40). 2 indexed citations
4.
Kodalle, Tim, Raul Garcia‐Diez, Claudia Hartmann, et al.. (2024). The Energy Level Alignment at the Buffer/Cu(In,Ga)Se2 Thin‐Film Solar Cell Interface for CdS and GaOx. Advanced Materials Interfaces. 11(13). 2 indexed citations
5.
Sood, Mohit, et al.. (2024). Grain boundaries are not the source of Urbach tails in Cu(In,Ga)Se2 absorbers. Journal of Physics Energy. 6(3). 35008–35008. 2 indexed citations
6.
Jošt, Marko, Eike Köhnen, Amran Al‐Ashouri, et al.. (2022). Perovskite/CIGS Tandem Solar Cells: From Certified 24.2% toward 30% and Beyond. ACS Energy Letters. 7(4). 1298–1307. 255 indexed citations breakdown →
7.
Bertram, Tobias, Christian A. Kaufmann, Tim Kodalle, et al.. (2022). Effects of material properties of band‐gap‐graded Cu(In,Ga)Se2 thin films on the onset of the quantum efficiency spectra of corresponding solar cells. Progress in Photovoltaics Research and Applications. 30(10). 1238–1246. 10 indexed citations
8.
9.
Krause, Maximilian, Wolfram Witte, Dimitrios Hariskos, et al.. (2020). Electrostatic potential fluctuations and light‐soaking effects in Cu(In,Ga)Se2 solar cells. Progress in Photovoltaics Research and Applications. 28(9). 919–934. 15 indexed citations
10.
Saifullah, Muhammad, et al.. (2019). Functional Data Analysis of Electrical Measurements on Thin-Film Photovoltaic Devices. IEEE Journal of Photovoltaics. 9(5). 1436–1441. 3 indexed citations
11.
Vögtlin, Andrea, Martin Hofmann‐Apitius, Sandra Renzullo, et al.. (2013). Long-term infection of goats with bluetongue virus serotype 25. Veterinary Microbiology. 166(1-2). 165–173. 28 indexed citations
12.
13.
Kempa, H., et al.. (2012). Metastability of solar cells based on evaporated chalcopyrite absorber layers prepared with varying selenium flux. Thin Solid Films. 535. 340–342. 10 indexed citations
14.
Hänsel, T., Günter Steinmeyer, R. Grünwald, et al.. (2009). Synthesized femtosecond laser pulse source for two-wavelength contouring with simultaneously recorded digital holograms. Optics Express. 17(4). 2686–2686. 12 indexed citations
15.
Caballero, R., Christian A. Kaufmann, Tobias Eisenbarth, et al.. (2008). The influence of Na on low temperature growth of CIGS thin film solar cells on polyimide substrates. Thin Solid Films. 517(7). 2187–2190. 104 indexed citations
16.
Kaufmann, Christian A., et al.. (2007). Laser Trimming of Micro Mirror Devices. Laser Technik Journal. 5(1). 36–39. 1 indexed citations
17.
Schwarz, Jochen, et al.. (2006). Das Waldkirch-Erdbeben (Baden-Württemberg) vom 5. Dezember 2004. Bautechnik. 83(3). 202–208. 12 indexed citations
18.
Schwarz, Jochen, et al.. (2006). Quantifizierung der Schadenspotentiale infolge Erdbeben – Teil 2: Modellstudie Baden-Württemberg. Bautechnik. 83(12). 827–841. 10 indexed citations
19.
Neisser, A., Christian A. Kaufmann, Roland Scheer, et al.. (2005). Flexible Solar Cells for Space: A New Development Based on Chalcopyrite Thin Films. HZB Repository (Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (HZB)). 589. 50. 3 indexed citations
20.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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