Niklas Hellgren

4.2k total citations · 1 hit paper
65 papers, 3.6k citations indexed

About

Niklas Hellgren is a scholar working on Materials Chemistry, Mechanics of Materials and Electrical and Electronic Engineering. According to data from OpenAlex, Niklas Hellgren has authored 65 papers receiving a total of 3.6k indexed citations (citations by other indexed papers that have themselves been cited), including 55 papers in Materials Chemistry, 46 papers in Mechanics of Materials and 34 papers in Electrical and Electronic Engineering. Recurrent topics in Niklas Hellgren's work include Metal and Thin Film Mechanics (46 papers), Diamond and Carbon-based Materials Research (44 papers) and Semiconductor materials and devices (31 papers). Niklas Hellgren is often cited by papers focused on Metal and Thin Film Mechanics (46 papers), Diamond and Carbon-based Materials Research (44 papers) and Semiconductor materials and devices (31 papers). Niklas Hellgren collaborates with scholars based in Sweden, United States and France. Niklas Hellgren's co-authors include Lars Hultman, I. Petrov, J.‐E. Sundgren, Mats Johansson, Esteban Broitman, J. E. Greene, Daniel Gall, Richard T. Haasch, Cheung Soo Shin and J.‐E. Sundgren and has published in prestigious journals such as Physical Review Letters, Physical review. B, Condensed matter and Applied Physics Letters.

In The Last Decade

Niklas Hellgren

62 papers receiving 3.5k citations

Hit Papers

X-ray photoelectron spectroscopy of thin films 2023 2026 2024 2025 2023 50 100 150 200
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. X-ray photoelectron spectroscopy of thin films
    2023 220 citations Grzegorz Greczyński, Richard T. Haasch et al. Nature Reviews Methods Primers profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Niklas Hellgren Sweden 31 2.9k 2.0k 1.4k 345 306 65 3.6k
M. Hecq Belgium 31 1.6k 0.5× 1.1k 0.5× 1.3k 1.0× 121 0.4× 150 0.5× 117 2.8k
C. López-Cartés Spain 27 2.9k 1.0× 612 0.3× 492 0.4× 655 1.9× 234 0.8× 48 3.4k
I. Jiménez Spain 37 2.2k 0.8× 1.1k 0.6× 1.1k 0.8× 299 0.9× 116 0.4× 115 3.5k
I. Alexandrou United Kingdom 25 2.3k 0.8× 533 0.3× 1.0k 0.8× 191 0.6× 384 1.3× 67 3.0k
T. R. Ravindran India 30 2.6k 0.9× 628 0.3× 1.1k 0.8× 522 1.5× 115 0.4× 183 3.3k
Julong He China 37 5.8k 2.0× 1.5k 0.8× 1.1k 0.8× 1.2k 3.5× 317 1.0× 135 6.6k
Werner Egger Germany 29 1.6k 0.6× 806 0.4× 949 0.7× 623 1.8× 124 0.4× 149 3.0k
A. I. Gusev Russia 35 2.9k 1.0× 1.2k 0.6× 918 0.7× 2.4k 6.8× 161 0.5× 228 4.3k
Huiyang Gou China 34 2.4k 0.8× 616 0.3× 1.6k 1.1× 398 1.2× 113 0.4× 152 4.0k
Diane S. Knight United States 9 2.2k 0.8× 959 0.5× 582 0.4× 411 1.2× 103 0.3× 15 2.6k

Countries citing papers authored by Niklas Hellgren

Since Specialization
Citations

This map shows the geographic impact of Niklas Hellgren'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 Niklas Hellgren with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Niklas Hellgren more than expected).

Fields of papers citing papers by Niklas Hellgren

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Niklas Hellgren. 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 Niklas Hellgren. The network helps show where Niklas Hellgren may publish in the future.

Co-authorship network of co-authors of Niklas Hellgren

This figure shows the co-authorship network connecting the top 25 collaborators of Niklas Hellgren. A scholar is included among the top collaborators of Niklas Hellgren 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 Niklas Hellgren. Niklas Hellgren 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.
Zhirkov, Igor, Niklas Hellgren, Quanzheng Tao, et al.. (2025). DC arc plasma generation and thin film deposition from an industrial scale TiB2 cathode. Surface and Coatings Technology. 516. 132804–132804.
2.
Greczyński, Grzegorz, Richard T. Haasch, Niklas Hellgren, Erik Lewin, & Lars Hultman. (2023). X-ray photoelectron spectroscopy of thin films. Nature Reviews Methods Primers. 3(1). 220 indexed citations breakdown →
3.
Hellgren, Niklas, et al.. (2020). Effect of etching on the oxidation of zinc selenide surfaces characterized by X-ray photoelectron spectroscopy. Applied Surface Science. 528. 146604–146604. 19 indexed citations
4.
Hellgren, Niklas, Richard T. Haasch, Susann Schmidt, Lars Hultman, & I. Petrov. (2016). Interpretation of X-ray photoelectron spectra of carbon-nitride thin films: New insights from in situ XPS. Carbon. 108. 242–252. 225 indexed citations
5.
Haasch, Richard T., Jörg Patscheider, Niklas Hellgren, I. Petrov, & J. E. Greene. (2012). The Si3N4/TiN Interface: An Introduction to a Series of Ultrathin Films Grown and Analyzed In situ using X-ray Photoelectron Spectroscopy. Surface Science Spectra. 19(1). 30–32. 2 indexed citations
6.
Xing, Kezhao, et al.. (2009). N1s Electron Binding Energies of CN_x Thin Films Grown by Magnetron Sputtering at Different Temperature. Journal of Material Science and Technology. 14(1). 25–28. 3 indexed citations
7.
Lee, Taeyoon, Daniel Gall, Cheung Soo Shin, et al.. (2003). Growth and physical properties of epitaxial CeN layers on MgO(001). Journal of Applied Physics. 94(2). 921–927. 29 indexed citations
8.
Hultman, Lars, J. Neidhardt, Niklas Hellgren, H. Sjöström, & J.‐E. Sundgren. (2003). Fullerene-like Carbon Nitride: A Resilient Coating Material. MRS Bulletin. 28(3). 194–202. 128 indexed citations
9.
Hultman, Lars, S. Stafström, Zsolt Czigány, et al.. (2001). Cross-Linked Nano-onions of Carbon Nitride in the Solid Phase: Existence of a NovelC48N12Aza-Fullerene. Physical Review Letters. 87(22). 225503–225503. 166 indexed citations
10.
Hellgren, Niklas. (2001). Effect of chemical sputtering on the growth and structural evolution of magnetron sputtered CNx thin films. Thin Solid Films. 382(1-2). 146–152. 86 indexed citations
11.
Hellgren, Niklas, Nian Lin, Esteban Broitman, et al.. (2001). Thermal stability of carbon nitride thin films. Journal of materials research/Pratt's guide to venture capital sources. 16(11). 3188–3201. 44 indexed citations
12.
Berlind, Torun, Niklas Hellgren, Mats Johansson, & Lars Hultman. (2001). Microstructure, mechanical properties, and wetting behavior of Si–C–N thin films grown by reactive magnetron sputtering. Surface and Coatings Technology. 141(2-3). 145–155. 86 indexed citations
13.
Johansson, Mats, et al.. (2000). Template-synthesized BN:C nanoboxes. Applied Physics Letters. 76(7). 825–827. 8 indexed citations
14.
Андриевский, Р. А., et al.. (2000). Nanoindentation and strain characteristics of nanostructured boride/nitride films. Physics of the Solid State. 42(9). 1671–1674. 16 indexed citations
15.
16.
Hellgren, Niklas, Mats Johansson, Esteban Broitman, Lars Hultman, & J.‐E. Sundgren. (1999). Role of nitrogen in the formation of hard and elasticCNxthin films by reactive magnetron sputtering. Physical review. B, Condensed matter. 59(7). 5162–5169. 423 indexed citations
17.
Guo, Jinghua, Weitao Zheng, Conny Såthe, et al.. (1999). Spectroscopic study of CNx films grown by magnetron sputter deposition. Journal of Electron Spectroscopy and Related Phenomena. 101-103. 551–554. 7 indexed citations
18.
Suenaga, Kazu, Mats Johansson, Niklas Hellgren, et al.. (1999). Carbon nitride nanotubulite – densely-packed and well-aligned tubular nanostructures. Chemical Physics Letters. 300(5-6). 695–700. 127 indexed citations
19.
Zheng, Weitao, Esteban Broitman, Niklas Hellgren, et al.. (1997). Reactive magnetron sputtering of CNx thin films at different substrate bias. Thin Solid Films. 308-309. 223–227. 39 indexed citations
20.
Zheng, Weitao, Kezhao Xing, Niklas Hellgren, et al.. (1997). Nitrogen 1s electron binding energy assignment in carbon nitride thin films with different structures. Journal of Electron Spectroscopy and Related Phenomena. 87(1). 45–49. 81 indexed citations

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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