N.P. Barradas

7.3k total citations · 1 hit paper
334 papers, 6.1k citations indexed

About

N.P. Barradas is a scholar working on Materials Chemistry, Electrical and Electronic Engineering and Radiation. According to data from OpenAlex, N.P. Barradas has authored 334 papers receiving a total of 6.1k indexed citations (citations by other indexed papers that have themselves been cited), including 141 papers in Materials Chemistry, 136 papers in Electrical and Electronic Engineering and 77 papers in Radiation. Recurrent topics in N.P. Barradas's work include Semiconductor materials and devices (67 papers), Ion-surface interactions and analysis (64 papers) and X-ray Spectroscopy and Fluorescence Analysis (52 papers). N.P. Barradas is often cited by papers focused on Semiconductor materials and devices (67 papers), Ion-surface interactions and analysis (64 papers) and X-ray Spectroscopy and Fluorescence Analysis (52 papers). N.P. Barradas collaborates with scholars based in Portugal, United Kingdom and Germany. N.P. Barradas's co-authors include C. Jeynes, E. Alves, R.P. Webb, F. Vaz, M.A. Reis, J.C. Soares, Armando Vieira, P. P. Freitas, C. Pascual-Izarra and E. Szilágyi and has published in prestigious journals such as SHILAP Revista de lepidopterología, Physical review. B, Condensed matter and Applied Physics Letters.

In The Last Decade

N.P. Barradas

330 papers receiving 6.0k citations

Hit Papers

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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.

Simulated annealing analysis of Rutherford backscattering data

1997 552 citations N.P. Barradas, C. Jeynes et al. profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author						Papers	Cites
N.P. Barradas	2.7k	2.2k	1.2k	1.1k	1.0k	334	6.1k
Lawrence Doolittle	1.8k 0.7×	1.7k 0.8×	984 0.8×	452 0.4×	757 0.7×	62	3.8k
James W. Mayer	1.9k 0.7×	1.9k 0.9×	1.3k 1.1×	531 0.5×	564 0.5×	68	4.6k
S. Hofmann	3.5k 1.3×	3.3k 1.5×	2.6k 2.2×	684 0.6×	2.3k 2.2×	239	8.0k
Raynald Gauvin	2.3k 0.8×	2.3k 1.0×	360 0.3×	619 0.6×	568 0.5×	353	6.7k
J. R. Patel	2.7k 1.0×	2.5k 1.1×	447 0.4×	509 0.5×	896 0.9×	138	6.1k
Zhanshan Wang	988 0.4×	1.7k 0.8×	832 0.7×	623 0.6×	519 0.5×	526	4.9k
Daniel Primetzhofer	2.4k 0.9×	1.5k 0.7×	1.1k 0.9×	373 0.3×	1.4k 1.4×	318	4.7k
Rajdeep Singh Rawat	3.2k 1.2×	3.6k 1.6×	1.2k 1.0×	739 0.7×	1.4k 1.3×	319	7.7k
Mark B. H. Breese	3.1k 1.1×	3.3k 1.5×	1.1k 1.0×	672 0.6×	145 0.1×	324	6.7k
J. A. Knapp	4.0k 1.5×	1.8k 0.8×	913 0.8×	299 0.3×	2.1k 2.0×	165	7.1k

Countries citing papers authored by N.P. Barradas

Since Specialization

Citations

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

Fields of papers citing papers by N.P. Barradas

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by N.P. Barradas. 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 N.P. Barradas. The network helps show where N.P. Barradas may publish in the future.

Co-authorship network of co-authors of N.P. Barradas

This figure shows the co-authorship network connecting the top 25 collaborators of N.P. Barradas. A scholar is included among the top collaborators of N.P. Barradas 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 N.P. Barradas. N.P. Barradas is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Barradas, N.P., Armando Vieira, M. Felizardo, & M. Mátos. (2025). Nuclide identification of radioactive sources from gamma spectra using artificial neural networks. Radiation Physics and Chemistry. 232. 112692–112692. 1 indexed citations

Lopes, C., A.C. Alves, Armando Ferreira, et al.. (2024). The influence of the nanostructure design on the corrosion behaviour of TiN thin films prepared by glancing angle deposition. Materials Chemistry and Physics. 329. 130100–130100. 1 indexed citations

Geraldo, M. Dulce, Armando Ferreira, M.A. Corrêa, et al.. (2024). Evaluation of Performance and Longevity of Ti-Cu Dry Electrodes: Degradation Analysis Using Anodic Stripping Voltammetry. Sensors. 24(23). 7477–7477. 2 indexed citations

Lopes, C., Marco S. Rodrigues, Armando Ferreira, et al.. (2023). The influence of the nanostructure design on the optical, electrical and thermal properties of TiNx thin films prepared by reactive magnetron sputtering. Materials Chemistry and Physics. 306. 127981–127981. 9 indexed citations

Alves, E., N.P. Barradas, P. Costa Pinto, et al.. (2023). Amorphous carbon thin films: Mechanisms of hydrogen incorporation during magnetron sputtering and consequences for the secondary electron emission. Journal of Vacuum Science & Technology A Vacuum Surfaces and Films. 41(4). 4 indexed citations

Rodrigues, Marco S., et al.. (2023). Tuning the Refractive Index Sensitivity of LSPR Transducers Based on Nanocomposite Thin Films Composed of Noble Metal Nanoparticles Dispersed in TiO2. Materials. 16(23). 7355–7355. 4 indexed citations

Rodrigues, Marco S., M. Cidália R. Castro, A. V. Machado, et al.. (2022). Optimization of Au:CuO Thin Films by Plasma Surface Modification for High-Resolution LSPR Gas Sensing at Room Temperature. Sensors. 22(18). 7043–7043. 6 indexed citations

Shaimerdenov, Asset, et al.. (2022). TITAN neutron imaging facility performance. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 1039. 167078–167078. 2 indexed citations

Rodrigues, Marco S., Lucian Roiban, M. Aouine, et al.. (2021). In-situ annealing transmission electron microscopy of plasmonic thin films composed of bimetallic Au–Ag nanoparticles dispersed in a TiO2 matrix. Vacuum. 193. 110511–110511. 9 indexed citations

10.

Lopes, C., Patrique Fiedler, Marco S. Rodrigues, et al.. (2021). Me-Doped Ti–Me Intermetallic Thin Films Used for Dry Biopotential Electrodes: A Comparative Case Study. Sensors. 21(23). 8143–8143. 7 indexed citations

11.

Rodrigues, Marco S., C. Lopes, Paulo Pedrosa, et al.. (2019). Thin films composed of metal nanoparticles (Au, Ag, Cu) dispersed in AlN: The influence of composition and thermal annealing on the structure and plasmonic response. Thin Solid Films. 676. 12–25. 23 indexed citations

12.

Rodrigues, Marco S., et al.. (2019). Thin films of Au-Al2O3 for plasmonic sensing. Applied Surface Science. 500. 144035–144035. 16 indexed citations

13.

Rodrigues, Marco S., E. Alves, N.P. Barradas, et al.. (2018). Thin films composed of Au nanoparticles embedded in AlN: Influence of metal concentration and thermal annealing on the LSPR band. Vacuum. 157. 414–421. 24 indexed citations

14.

Rojas-Hernández, Rocío Estefanía, N.P. Barradas, E. Alves, Luís F. Santos, & Rui M. Almeida. (2018). Up-conversion emission of aluminosilicate and titania films doped with Er3+/Yb3+ by ion implantation and sol-gel solution doping. Surface and Coatings Technology. 355. 162–168. 13 indexed citations

15.

Widdowson, A., E. Alves, A. Baron-Wiecheć, et al.. (2017). Overview of the JET ITER-like wall divertor. Nuclear Materials and Energy. 12. 499–505. 45 indexed citations

16.

Pedrosa, Paulo, Patrique Fiedler, E. Alves, et al.. (2016). Electrochemical characterization of nanostructured Ag:TiN thin films produced by glancing angle deposition on polyurethane substrates for bio-electrode applications. Journal of Electroanalytical Chemistry. 768. 110–120. 12 indexed citations

17.

Borges, Joel, C. Lopes, Marco Antônio Siqueira Rodrigues, et al.. (2015). Biological behaviour of thin films consisting of Au nanoparticles dispersed in a TiO2 dielectric matrix. Vacuum. 122. 360–368. 19 indexed citations

18.

Lopes, C., Cristiana Gonçalves, Joel Borges, et al.. (2014). Evolution of the functional properties of titanium–silver thin films for biomedical applications: Influence of in-vacuum annealing. Surface and Coatings Technology. 261. 262–271. 21 indexed citations

19.

Torrell, Marc, L. Cunha, E. Alves, et al.. (2011). Structural and optical properties of Ag:TiO2 nanocomposite films prepared by magnetron sputtering. Optoelectronics and Advanced Materials Rapid Communications. 5(1). 73–79. 5 indexed citations

20.

Barradas, N.P., C. Jeynes, K.P. Homewood, B.J. Sealy, & M. Milosavljević. (1998). RBS/simulated annealing analysis of silicide formation in Fe/Si systems. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 139(1-4). 235–238. 34 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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