Olena Okhay

1.0k total citations
48 papers, 780 citations indexed

About

Olena Okhay is a scholar working on Materials Chemistry, Electrical and Electronic Engineering and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, Olena Okhay has authored 48 papers receiving a total of 780 indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Materials Chemistry, 25 papers in Electrical and Electronic Engineering and 24 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in Olena Okhay's work include Ferroelectric and Piezoelectric Materials (23 papers), Multiferroics and related materials (12 papers) and Supercapacitor Materials and Fabrication (11 papers). Olena Okhay is often cited by papers focused on Ferroelectric and Piezoelectric Materials (23 papers), Multiferroics and related materials (12 papers) and Supercapacitor Materials and Fabrication (11 papers). Olena Okhay collaborates with scholars based in Portugal, Czechia and Italy. Olena Okhay's co-authors include Alexander Tkach, Paula M. Vilarinho, A. Almeida, P. Staiti, Francesco Lufrano, J. Ventura, Elby Titus, Gonzalo Otero‐Irurueta, María J. Hortigüela and Rahul Krishna and has published in prestigious journals such as SHILAP Revista de lepidopterología, Applied Physics Letters and Journal of Applied Physics.

In The Last Decade

Olena Okhay

44 papers receiving 771 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Olena Okhay Portugal 15 540 370 345 168 110 48 780
Jihe Du China 5 379 0.7× 391 1.1× 271 0.8× 170 1.0× 99 0.9× 6 706
M. Abdullah Dar India 12 689 1.3× 279 0.8× 614 1.8× 92 0.5× 128 1.2× 19 878
Youwen Yang China 13 419 0.8× 332 0.9× 182 0.5× 172 1.0× 67 0.6× 39 690
Leimei Sheng China 17 449 0.8× 242 0.7× 414 1.2× 178 1.1× 105 1.0× 29 834
Eui-Sup Lee South Korea 7 433 0.8× 239 0.6× 200 0.6× 182 1.1× 44 0.4× 7 590
Jinmi Tian China 9 400 0.7× 456 1.2× 524 1.5× 113 0.7× 92 0.8× 11 778
K A Malini India 15 960 1.8× 351 0.9× 762 2.2× 146 0.9× 173 1.6× 29 1.2k
Shang-En Wu Taiwan 5 634 1.2× 309 0.8× 177 0.5× 355 2.1× 99 0.9× 6 787
Pitamber Mahanandia India 16 532 1.0× 379 1.0× 159 0.5× 210 1.3× 225 2.0× 61 777
Gaorong Han China 17 619 1.1× 427 1.2× 298 0.9× 146 0.9× 53 0.5× 51 862

Countries citing papers authored by Olena Okhay

Since Specialization
Citations

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

Fields of papers citing papers by Olena Okhay

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Olena Okhay

This figure shows the co-authorship network connecting the top 25 collaborators of Olena Okhay. A scholar is included among the top collaborators of Olena Okhay 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 Olena Okhay. Olena Okhay 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.
Lufrano, Francesco, Alessandra Carbone, Irene Gatto, et al.. (2025). Insight into iodine-doped carbon xerogel electrodes on the capacitance and long-term stability of quasi-solid-state supercapacitors. Applied Surface Science. 714. 164441–164441.
2.
Okhay, Olena & Gil Gonçalves. (2024). Carbon and Related Composites for Sensors and Energy Storage: Synthesis, Properties, and Application. SHILAP Revista de lepidopterología. 10(4). 101–101.
3.
Okhay, Olena & Alexander Tkach. (2024). A comprehensive review of the use of porous graphene frameworks for various types of rechargeable lithium batteries. Journal of Energy Storage. 80. 110336–110336. 15 indexed citations
4.
Aresti, Lazaros, Francesco Cecinato, Zili Li, et al.. (2024). Energy geo-structures: A review of their integration with other sources and its limitations. Renewable Energy. 230. 120835–120835. 7 indexed citations
5.
Okhay, Olena, Paula M. Vilarinho, & Alexander Tkach. (2023). Structure, Microstructure, and Dielectric Response of Polycrystalline Sr1-xZnxTiO3 Thin Films. Coatings. 13(1). 165–165. 2 indexed citations
6.
Okhay, Olena & Alexander Tkach. (2023). Current Achievements in Flexible Piezoelectric Nanogenerators Based on Barium Titanate. Nanomaterials. 13(6). 988–988. 16 indexed citations
7.
Okhay, Olena, et al.. (2023). Chemical Activation of Apricot Pit-Derived Carbon Sorbents for the Effective Removal of Dyes in Environmental Remediation. SHILAP Revista de lepidopterología. 9(4). 93–93. 5 indexed citations
8.
9.
Okhay, Olena & Alexander Tkach. (2022). Polyaniline—Graphene Electrodes Prepared by Electropolymerization for High-Performance Capacitive Electrodes: A Brief Review. Batteries. 8(10). 191–191. 7 indexed citations
10.
Okhay, Olena & Alexander Tkach. (2021). Impact of Graphene or Reduced Graphene Oxide on Performance of Thermoelectric Composites. SHILAP Revista de lepidopterología. 7(2). 37–37. 12 indexed citations
11.
Okhay, Olena, Alexander Tkach, P. Staiti, & Francesco Lufrano. (2020). Long term durability of solid-state supercapacitor based on reduced graphene oxide aerogel and carbon nanotubes composite electrodes. Electrochimica Acta. 353. 136540–136540. 41 indexed citations
12.
Tkach, Alexander, André A. Santos, Sebastian Złotnik, et al.. (2019). Effect of Solution Conditions on the Properties of Sol–Gel Derived Potassium Sodium Niobate Thin Films on Platinized Sapphire Substrates. Nanomaterials. 9(11). 1600–1600. 10 indexed citations
13.
Tkach, Alexander, João Resende, K. Venkata Saravanan, et al.. (2018). Abnormal Grain Growth as a Method To Enhance the Thermoelectric Performance of Nb-Doped Strontium Titanate Ceramics. ACS Sustainable Chemistry & Engineering. 6(12). 15988–15994. 31 indexed citations
14.
Tkach, Alexander, André A. Santos, Sebastian Złotnik, et al.. (2018). Strain-Mediated Substrate Effect on the Dielectric and Ferroelectric Response of Potassium Sodium Niobate Thin Films. Coatings. 8(12). 449–449. 9 indexed citations
15.
Okhay, Olena, Rahul Krishna, Alexander Tkach, et al.. (2015). Drastic modification of graphene oxide properties by incorporation of nickel: a simple inorganic chemistry approach. Journal of Materials Science. 50(9). 3425–3433. 1 indexed citations
16.
Tkach, Alexander, Tatiana Correia, A. Almeida, et al.. (2011). Role of trivalent Sr substituents and Sr vacancies in tetragonal and polar states of SrTiO3. Acta Materialia. 59(14). 5388–5397. 41 indexed citations
17.
Okhay, Olena, Aiying Wu, Paula M. Vilarinho, & Alexander Tkach. (2010). Low temperature dielectric characterization of Mg-doped SrTiO3 thin films prepared by sol-gel. Applied Physics Letters. 96(15). 6 indexed citations
18.
Tkach, Alexander, Olena Okhay, Paula M. Vilarinho, & Andréi L. Kholkin. (2008). High dielectric constant and tunability of strontium titanate ceramics modified by chromium doping. Journal of Physics Condensed Matter. 20(41). 415224–415224. 20 indexed citations
19.
Трепаков, В. А., M. Savinov, Olena Okhay, et al.. (2007). Dielectric permittivity and Cr3+ impurity ion probe luminescence in SrTiO3 sol–gel ceramics. Journal of the European Ceramic Society. 27(13-15). 3705–3707. 7 indexed citations
20.
Okhay, Olena, Aoli Wu, Paula M. Vilarinho, et al.. (2007). Microstructural studies and electrical properties of Mg-doped SrTiO3 thin films. Acta Materialia. 55(15). 4947–4954. 9 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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