Follow
Niklas Hellgren
Niklas Hellgren
Department Chair, Professor of Physics, Messiah University
Verified email at messiah.edu
Title
Cited by
Cited by
Year
Role of nitrogen in the formation of hard and elastic CN x thin films by reactive magnetron sputtering
N Hellgren, MP Johansson, E Broitman, L Hultman, JE Sundgren
Physical Review B 59 (7), 5162, 1999
5401999
Growth of poly- and single-crystal ScN on MgO(001): Role of low-energy irradiation in determining texture, microstructure evolution, and mechanical properties
D Gall, I Petrov, N Hellgren, L Hultman, JE Sundgren, JE Greene
Journal of Applied Physics 84 (11), 6034-6041, 1998
2701998
Cross-Linked Nano-onions of Carbon Nitride in the Solid Phase: Existence of a Novel Aza-Fullerene
L Hultman, S Stafström, Z Czigány, J Neidhardt, N Hellgren, IF Brunell, ...
Physical review letters 87 (22), 225503, 2001
2282001
Interpretation of X-ray photoelectron spectra of carbon-nitride thin films: New insights from in situ XPS
N Hellgren, RT Haasch, S Schmidt, L Hultman, I Petrov
Carbon 108, 242-252, 2016
2232016
Carbon nitride nanotubulite–densely-packed and well-aligned tubular nanostructures
K Suenaga, MP Johansson, N Hellgren, E Broitman, LR Wallenberg, ...
Chemical Physics Letters 300 (5-6), 695-700, 1999
1851999
Vacancy hardening in single-crystal layers
CS Shin, D Gall, N Hellgren, J Patscheider, I Petrov, JE Greene
Journal of applied physics 93 (10), 6025-6028, 2003
1822003
Electronic structure of carbon nitride thin films studied by X-ray spectroscopy techniques
N Hellgren, J Guo, Y Luo, C Såthe, A Agui, S Kashtanov, J Nordgren, ...
Thin Solid Films 471 (1-2), 19-34, 2005
1732005
Growth, surface morphology, and electrical resistivity of fully strained substoichiometric epitaxial layers on MgO(001)
CS Shin, S Rudenja, D Gall, N Hellgren, TY Lee, I Petrov, JE Greene
Journal of Applied Physics 95 (1), 356-362, 2004
1502004
Fullerene-like carbon nitride: a resilient coating material
L Hultman, J Neidhardt, N Hellgren, H Sjöström, JE Sundgren
MRS bulletin 28 (3), 194-202, 2003
1492003
X-ray photoelectron spectroscopy of thin films
G Greczynski, RT Haasch, N Hellgren, E Lewin, L Hultman
Nature Reviews Methods Primers 3 (1), 40, 2023
1482023
Mechanical and tribological properties of CNx films deposited by reactive magnetron sputtering
E Broitman, N Hellgren, O Wänstrand, MP Johansson, T Berlind, ...
Wear 248 (1-2), 55-64, 2001
1262001
Nitrogen bonding structure in carbon nitride thin films studied by soft x-ray spectroscopy
N Hellgren, J Guo, C Såthe, A Agui, J Nordgren, Y Luo, H Ågren, ...
Applied Physics Letters 79 (26), 4348-4350, 2001
1222001
Microstructure, mechanical properties, and wetting behavior of Si–C–N thin films grown by reactive magnetron sputtering
T Berlind, N Hellgren, MP Johansson, L Hultman
Surface and Coatings Technology 141 (2-3), 145-155, 2001
1112001
Development of preferred orientation in polycrystalline NaCl-structure δ-TaN layers grown by reactive magnetron sputtering: Role of low-energy ion surface interactions
CS Shin, D Gall, YW Kim, N Hellgren, I Petrov, JE Greene
Journal of applied physics 92 (9), 5084-5093, 2002
1092002
Effect of chemical sputtering on the growth and structural evolution of magnetron sputtered CNx thin films
N Hellgren, MP Johansson, E Broitman, P Sandström, L Hultman, ...
Thin Solid Films 382 (1-2), 146-152, 2001
1062001
Nitrogen 1s electron binding energy assignment in carbon nitride thin films with different structures
WT Zheng, KZ Xing, N Hellgren, M Lögdlund, Å Johansson, U Gelivs, ...
Journal of electron spectroscopy and related phenomena 87 (1), 45-49, 1997
961997
Predicted stability of a new aza [60] fullerene molecule, C48N12
S Stafström, L Hultman, N Hellgren
Chemical physics letters 340 (3-4), 227-231, 2001
872001
Carbon nitride films on orthopedic substrates
E Broitman, W Macdonald, N Hellgren, G Radnoczi, Z Czigány, ...
Diamond and Related materials 9 (12), 1984-1991, 2000
812000
Influence of plasma parameters on the growth and properties of magnetron sputtered thin films
N Hellgren, K Macák, E Broitman, MP Johansson, L Hultman, ...
Journal of Applied Physics 88 (1), 524-532, 2000
732000
Electrical and optical properties of films deposited by reactive magnetron sputtering
E Broitman, N Hellgren, K Järrendahl, MP Johansson, S Olafsson, ...
Journal of applied physics 89 (2), 1184-1190, 2001
702001
The system can't perform the operation now. Try again later.
Articles 1–20