V. N. Freire

5.9k total citations
317 papers, 4.8k citations indexed

About

V. N. Freire is a scholar working on Materials Chemistry, Electrical and Electronic Engineering and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, V. N. Freire has authored 317 papers receiving a total of 4.8k indexed citations (citations by other indexed papers that have themselves been cited), including 107 papers in Materials Chemistry, 106 papers in Electrical and Electronic Engineering and 102 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in V. N. Freire's work include Semiconductor Quantum Structures and Devices (73 papers), Semiconductor materials and devices (49 papers) and GaN-based semiconductor devices and materials (39 papers). V. N. Freire is often cited by papers focused on Semiconductor Quantum Structures and Devices (73 papers), Semiconductor materials and devices (49 papers) and GaN-based semiconductor devices and materials (39 papers). V. N. Freire collaborates with scholars based in Brazil, United States and Belgium. V. N. Freire's co-authors include E. W. S. Caetano, E.L. Albuquerque, Umberto L. Fulco, Pedro de Lima‐Neto, F. F. Maia, G. A. Farias, J.M. Henriques, Stefane N. Costa, David L. Azevedo and J.A.P. da Costa and has published in prestigious journals such as The Journal of Chemical Physics, Physical review. B, Condensed matter and Applied Physics Letters.

In The Last Decade

V. N. Freire

310 papers receiving 4.7k citations

Peers

V. N. Freire

EEE

AMPO

EOMM

Péter Krüger Japan

Toru Asahi Japan

Ying Jiang China

Takeshi Hasegawa Japan

Keisuke Takahashi Japan

Alex I. Smirnov United States

Michael Sztucki France

Jan Swenson Sweden

Robert M. Dalgliesh United Kingdom

Yoshiyuki Amemiya Japan

Péter Krüger Japan

V. N. Freire

1.9k ×1.0

651 ×0.6

EEE

952 ×1.2

AMPO

905 ×1.1

351 ×0.5

EOMM

Citations per year, relative to V. N. Freire V. N. Freire (= 1×) peers Péter Krüger

Countries citing papers authored by V. N. Freire

Since Specialization

Citations

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

Fields of papers citing papers by V. N. Freire

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of V. N. Freire

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Santos, Hélcio Silva dos, V. N. Freire, Clodomiro Alves, et al.. (2025). Red-shifted optical absorption induced by donor–acceptor–donor π-extended dibenzalacetone derivatives. RSC Advances. 15(4). 2416–2429. 2 indexed citations

Rocha, Matheus Nunes da, V. N. Freire, Alejandro Pedro Ayala, et al.. (2025). Structural, electronic, and optical properties of olanzapine polymorphs: experimental characterization, DFT studies and molecular docking with the D2 dopamine receptor. Chemical Papers.

Freire, V. N., Alejandro Pedro Ayala, Emmanuel Silva Marinho, et al.. (2024). Synthesis, crystal structure, structural and spectroscopic analyses, in silico and DFT studies of a novel isoniazid derivative against Mycobacterium Tuberculosis. Journal of Molecular Structure. 1327. 141181–141181. 1 indexed citations

Sá, Lívia Gurgel do Amaral Valente, et al.. (2022). Gallic Acid Leads to Cell Death of Candida Albicans by the Apoptosis Mechanism. Future Microbiology. 17(8). 599–606. 18 indexed citations

Amaral, Jackson L., Camila Fabiano de Freitas, A. N. Medina, et al.. (2021). Molecular insight on the binding of stevia glycosides to bovine serum albumin. Chemico-Biological Interactions. 344. 109526–109526. 7 indexed citations

Bezerra, Katyanna Sales, et al.. (2021). New ethionamide boosters and EthR2: structural and energetic analysis. Physical Chemistry Chemical Physics. 23(40). 23233–23241. 6 indexed citations

Bezerra, Katyanna Sales, et al.. (2021). In silico approach of modified melanoma peptides and their immunotherapeutic potential. Physical Chemistry Chemical Physics. 23(4). 2836–2845. 3 indexed citations

Bezerra, Eveline M., V. N. Freire, Xinghua Ma, et al.. (2020). Antitumor Potential of the Isoflavonoids (+)- and (−)-2,3,9-Trimethoxypterocarpan: Mechanism-of-Action Studies. ACS Medicinal Chemistry Letters. 11(6). 1274–1280. 11 indexed citations

Domingues, Sheyla Farhayldes Souza, Ana Paula Ribeiro Rodrigues, Kele Amaral Alves, et al.. (2020). Betaine-loaded CaCO3 microparticles improve survival of vitrified feline preantral follicles through higher mitochondrial activity and decreased reactive oxygen species. Reproduction Fertility and Development. 32(5). 531–537. 2 indexed citations

10.

Zanatta, Geancarlo, et al.. (2019). Solid state properties of hydroxyurea: Optical absorption measurement and DFT calculations. Journal of Applied Physics. 125(13). 5 indexed citations

11.

Bezerra, Katyanna Sales, Umberto L. Fulco, José Xavier Neto, et al.. (2019). Ribosomal RNA–Aminoglycoside Hygromycin B Interaction Energy Calculation within a Density Functional Theory Framework. The Journal of Physical Chemistry B. 123(30). 6421–6429. 21 indexed citations

12.

Zanatta, Geancarlo, Regina Cláudia Rodrigues dos Santos, F. A. M. Sales, et al.. (2018). First-generation antipsychotic haloperidol: optical absorption measurement and structural, electronic, and optical properties of its anhydrous monoclinic crystal by first-principle approaches. New Journal of Chemistry. 42(16). 13629–13640. 10 indexed citations

13.

Bezerra, Katyanna Sales, José Xavier Neto, Jonas Ivan Nobre Oliveira, et al.. (2018). Computational investigation of the α₂β₁integrin–collagen triple helix complex interaction. New Journal of Chemistry. 42(20). 17115–17125. 19 indexed citations

14.

Bezerra, Katyanna Sales, Jonas Ivan Nobre Oliveira, José Xavier Neto, et al.. (2017). Quantum binding energy features of the T3-785 collagen-like triple-helical peptide. RSC Advances. 7(5). 2817–2828. 23 indexed citations

15.

Pinheiro, Antônio N., et al.. (2017). Copper promoter effect on acid–base and redox sites of Fe/Al₂O₃ catalysts and their role in ethanol–acetone mixture conversion. Catalysis Science & Technology. 8(2). 443–458. 9 indexed citations

16.

Neto, José Xavier, Katyanna Sales Bezerra, Jonas Ivan Nobre Oliveira, et al.. (2017). Energetic description of cilengitide bound to integrin. New Journal of Chemistry. 41(19). 11405–11412. 18 indexed citations

17.

Neto, José Xavier, Jonas Ivan Nobre Oliveira, M.S. Vasconcelos, et al.. (2016). A quantum chemistry investigation of a potential inhibitory drug against the dengue virus. RSC Advances. 6(61). 56562–56570. 26 indexed citations

18.

Oliveira, Jonas Ivan Nobre, José Xavier Neto, Umberto L. Fulco, et al.. (2015). Electronic transport in methylated fragments of DNA. Applied Physics Letters. 107(20). 9 indexed citations

19.

Santos, Ricardo, João Batista Cajazeiras, Benildo Sousa Cavada, et al.. (2006). Production and characterization of the cashew (Anacardium occidentale L.) peduncle bagasse ashes. Journal of Food Engineering. 79(4). 1432–1437. 54 indexed citations

20.

Freire, V. N., et al.. (1996). Kinetic energy operators and electron transmission in nonabrupt heterojunctions. Brazilian Journal of Physics. 26(1). 388–391. 1 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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