Niklas Hellgren

4.2k citations

65 papers · 3.6k indexed · 1 hit paper · h-index 31

Impact in

Mechanics of Materials top 0.5%
- Metal and Thin Film Mechanics
Materials Chemistry top 1%
- Diamond and Carbon-based Materials Research
- Boron and Carbon Nanomaterials Research
- Graphene research and applications
- Carbon Nanotubes in Composites
- MXene and MAX Phase Materials

Papers in ⓘ

Materials Chemistry 55
- Diamond and Carbon-based Materials Research 44
- Boron and Carbon Nanomaterials Research 13
- Graphene research and applications 9
Mechanics of Materials 46
- Metal and Thin Film Mechanics 46

Co-authors: Lars Hultman (33 shared papers)I. Petrov (19 shared papers)J.‐E. Sundgren (12 shared papers)Mats Johansson (11 shared papers)Esteban Broitman (14 shared papers)J. E. Greene (10 shared papers)Daniel Gall (6 shared papers)Richard T. Haasch (8 shared papers)
Journals: Journal of Applied Physics (8 papers)Journal of Vacuum Science & Technology A Vacuum Surfaces and Films (6 papers)Surface and Coatings Technology (6 papers)Thin Solid Films (3 papers)Applied Physics Letters (3 papers)
Partner nations: Sweden United States France

In The Last Decade

Niklas Hellgren

62 papers receiving 3.5k citations

Hit Papers

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X-ray photoelectron spectroscopy of thin films 2023 · 220 citations

Peers

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-authors

The 25 scholars most cited alongside Niklas Hellgren, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Niklas Hellgren Line = papers co-authored together Niklas Hellgren links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 65 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Role of nitrogen in the formation of hard and elasticCNxthin films by reactive magnetron sputtering Physical review. B, Condensed matter ·Niklas Hellgren, Mats Johansson, Esteban Broitman, Lars Hultman, J.‐E. Sundgren	1999	423
2	Interpretation of X-ray photoelectron spectra of carbon-nitride thin films: New insights from in situ XPS Carbon ·Niklas Hellgren, Richard T. Haasch, Susann Schmidt, Lars Hultman, I. Petrov	2016	225
3	X-ray photoelectron spectroscopy of thin films Nature Reviews Methods Primers ·Grzegorz Greczyński, Richard T. Haasch, Niklas Hellgren, Erik Lewin, Lars Hultman Hit paper breakdown →	2023	220
4	Growth of poly- and single-crystal ScN on MgO(001): Role of low-energy N2+ irradiation in determining texture, microstructure evolution, and mechanical properties Journal of Applied Physics ·Daniel Gall, I. Petrov, Niklas Hellgren, Lars Hultman, J.‐E. Sundgren, J. E. Greene	1998	218
5	Cross-Linked Nano-onions of Carbon Nitride in the Solid Phase: Existence of a NovelC48N12Aza-Fullerene Physical Review Letters ·Lars Hultman, S. Stafström, Zsolt Czigány, J. Neidhardt, Niklas Hellgren, Ian F Brunell, Kazu Suenaga, C. Colliex	2001	166
6	Vacancy hardening in single-crystal TiNx(001) layers Journal of Applied Physics ·Cheung Soo Shin, Daniel Gall, Niklas Hellgren, Jörg Patscheider, I. Petrov, J. E. Greene	2003	146
7	Electronic structure of carbon nitride thin films studied by X-ray spectroscopy techniques Thin Solid Films ·Niklas Hellgren, Jinghua Guo, Yi Luo, Conny Såthe, Akane Agui, Stepan Kashtanov, J. Nordgren, Hans Ågren, Jan Sundgren	2004	134
8	Fullerene-like Carbon Nitride: A Resilient Coating Material MRS Bulletin ·Lars Hultman, J. Neidhardt, Niklas Hellgren, H. Sjöström, J.‐E. Sundgren	2003	128
9	Carbon nitride nanotubulite – densely-packed and well-aligned tubular nanostructures Chemical Physics Letters ·Kazu Suenaga, Mats Johansson, Niklas Hellgren, Esteban Broitman, Reine Wallenberg, C. Colliex, J.‐E. Sundgren, Lars Hultman	1999	127
10	Growth, surface morphology, and electrical resistivity of fully strained substoichiometric epitaxial TiNx (0.67⩽x<1.0) layers on MgO(001) Journal of Applied Physics ·Cheung Soo Shin, S. Rudenja, Daniel Gall, Niklas Hellgren, Taeyoon Lee, I. Petrov, J. E. Greene	2003	120
11	Nitrogen bonding structure in carbon nitride thin films studied by soft x-ray spectroscopy Applied Physics Letters ·Niklas Hellgren, Jinghua Guo, Conny Såthe, Akane Agui, Joseph Nordgren, Yi Luo, Hans Ågren, J.‐E. Sundgren	2001	104
12	Effect of chemical sputtering on the growth and structural evolution of magnetron sputtered CNx thin films Thin Solid Films ·Niklas Hellgren	2001	86
13	Microstructure, mechanical properties, and wetting behavior of Si–C–N thin films grown by reactive magnetron sputtering Surface and Coatings Technology ·Torun Berlind, Niklas Hellgren, Mats Johansson, Lars Hultman	2001	86
14	Mechanical and tribological properties of CNx films deposited by reactive magnetron sputtering Wear ·Esteban Broitman, Niklas Hellgren, O. Wänstrand, Mats Johansson, Torun Berlind, H. Sjöström, J.‐E. Sundgren, M. Larsson, L. Hultman	2001	83
15	Nitrogen 1s electron binding energy assignment in carbon nitride thin films with different structures Journal of Electron Spectroscopy and Related Phenomena ·Weitao Zheng, Kezhao Xing, Niklas Hellgren, M. Lögdlund, Anna Johansson, U. Gelivs, W. R. Salaneck, J.‐E. Sundgren	1997	81
16	Development of preferred orientation in polycrystalline NaCl-structure δ-TaN layers grown by reactive magnetron sputtering: Role of low-energy ion surface interactions Journal of Applied Physics ·Cheung Soo Shin, Daniel Gall, Y.-W. Kim, Niklas Hellgren, I. Petrov, J. E. Greene	2002	81
17	Predicted stability of a new aza[60]fullerene molecule, C48N12 Chemical Physics Letters ·S. Stafström, L. Hultman, Niklas Hellgren	2001	75
18	Influence of plasma parameters on the growth and properties of magnetron sputtered CNx thin films Journal of Applied Physics ·Niklas Hellgren, K. Macák, Esteban Broitman, Mats Johansson, Lars Hultman, J.‐E. Sundgren	2000	74
19	Refined crystal structure of a superoxide dismutase from the hyperthermophilic archaeon Sulfolobus acidocaldarius at 2.2 Å resolution 1 1Edited by R. Huber Journal of Molecular Biology ·Stefan Knapp, S. Kardinahl, Niklas Hellgren, Gudrun Tibbelin, Günter Schäfer, Rudolf Ladenstein	1999	67
20	Electrical and optical properties of CNx(0⩽x⩽0.25) films deposited by reactive magnetron sputtering Journal of Applied Physics ·Esteban Broitman, Niklas Hellgren, Kenneth Järrendahl, Mats Johansson, S. Ólafsson, G. Radnóczi, J.‐E. Sundgren, L. Hultman	2001	56

About Niklas Hellgren

Niklas Hellgren is a scholar working on Materials Chemistry, Mechanics of Materials, Electrical and Electronic Engineering, Condensed Matter Physics and Organic Chemistry, having authored 65 papers that have together received 3.6k indexed citations. Recurring topics across this work include Metal and Thin Film Mechanics (46 papers), Diamond and Carbon-based Materials Research (44 papers), Semiconductor materials and devices (31 papers), Boron and Carbon Nanomaterials Research (13 papers), Graphene research and applications (9 papers), GaN-based semiconductor devices and materials (7 papers), Fullerene Chemistry and Applications (3 papers) and Ion-surface interactions and analysis (3 papers). The work is most often cited by research in Mechanics of Materials (2.0k citations), Materials Chemistry (2.9k citations), Electrical and Electronic Engineering (1.4k citations), Condensed Matter Physics (248 citations) and Ceramics and Composites (98 citations). Niklas Hellgren has collaborated with scholars based in Sweden, United States and France. Frequent 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. Their work appears in journals such as Journal of Applied Physics, Journal of Vacuum Science & Technology A Vacuum Surfaces and Films, Surface and Coatings Technology, Thin Solid Films and Applied Physics Letters.

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