Varkey Sebastian

1.4k total citations · 1 hit paper
33 papers, 1.1k citations indexed

About

Varkey Sebastian is a scholar working on Materials Chemistry, Atomic and Molecular Physics, and Optics and Electrical and Electronic Engineering. According to data from OpenAlex, Varkey Sebastian has authored 33 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Materials Chemistry, 15 papers in Atomic and Molecular Physics, and Optics and 15 papers in Electrical and Electronic Engineering. Recurrent topics in Varkey Sebastian's work include Magnetic properties of thin films (15 papers), Magnetic Properties and Synthesis of Ferrites (12 papers) and Perovskite Materials and Applications (8 papers). Varkey Sebastian is often cited by papers focused on Magnetic properties of thin films (15 papers), Magnetic Properties and Synthesis of Ferrites (12 papers) and Perovskite Materials and Applications (8 papers). Varkey Sebastian collaborates with scholars based in India and Germany. Varkey Sebastian's co-authors include K. Deepthi Jayan, N. Lakshmi, V. D. Sudheesh, Joji Kurian, Nygil Thomas, K. Venugopalan, ‬V. Raghavendra Reddy, Balaram Sahoo, Harish Kumar Choudhary and Ram K. Sharma and has published in prestigious journals such as Journal of Applied Physics, Physical Review B and Solar Energy.

In The Last Decade

Varkey Sebastian

33 papers receiving 1.1k citations

Hit Papers

align trajectories

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.

Comprehensive device modelling and performance analysis of MASnI3 based perovskite solar cells with diverse ETM, HTM and back metal contacts

2021 294 citations K. Deepthi Jayan, Varkey Sebastian Solar Energy profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Varkey Sebastian India	16	779	731	292	290	108	33	1.1k
Yalu Zuo China	15	427 0.5×	593 0.8×	236 0.8×	148 0.5×	65 0.6×	38	764
Bidini A. Taleatu Nigeria	17	461 0.6×	380 0.5×	233 0.8×	239 0.8×	79 0.7×	51	723
Xiaobin Niu China	14	625 0.8×	432 0.6×	100 0.3×	130 0.4×	157 1.5×	25	859
M. Soliman Selim Egypt	11	401 0.5×	544 0.7×	110 0.4×	206 0.7×	78 0.7×	17	738
Xichuan Liu China	16	446 0.6×	239 0.3×	409 1.4×	96 0.3×	102 0.9×	25	699
S. Park United States	8	715 0.9×	750 1.0×	159 0.5×	146 0.5×	91 0.8×	14	928
Boubaker Benhaoua Algeria	21	806 1.0×	990 1.4×	258 0.9×	256 0.9×	48 0.4×	44	1.1k
A.R. Babar India	13	816 1.0×	796 1.1×	164 0.6×	232 0.8×	105 1.0×	19	960
Ashok B. Gadkari India	18	575 0.7×	1.1k 1.5×	779 2.7×	64 0.2×	167 1.5×	35	1.2k
Manil Kang South Korea	16	484 0.6×	456 0.6×	159 0.5×	379 1.3×	144 1.3×	28	734

Countries citing papers authored by Varkey Sebastian

Since Specialization

Citations

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

Fields of papers citing papers by Varkey Sebastian

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Varkey Sebastian

This figure shows the co-authorship network connecting the top 25 collaborators of Varkey Sebastian. A scholar is included among the top collaborators of Varkey Sebastian 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 Varkey Sebastian. Varkey Sebastian 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

Jayan, K. Deepthi, Varkey Sebastian, & Joji Kurian. (2021). Simulation and optimization studies on CsPbI3 based inorganic perovskite solar cells. Solar Energy. 221. 99–108. 136 indexed citations

Jayan, K. Deepthi & Varkey Sebastian. (2021). Modelling and comparative performance analysis of tin based mixed halide perovskite solar cells with IGZO and CuO as charge transport layers. International Journal of Energy Research. 45(11). 16618–16632. 45 indexed citations

Jayan, K. Deepthi & Varkey Sebastian. (2021). Device Modelling and Performance Analysis of CH₃ NH₃ PbX₃(X: I, Br, Cl) based Perovskite Solar Cells with SnO₂ and CuO as Transport Layers. 623–628. 3 indexed citations

Jayan, K. Deepthi & Varkey Sebastian. (2019). A review on computational modelling of individual device components and interfaces of perovskite solar cells using DFT. AIP conference proceedings. 2162. 20036–20036. 11 indexed citations

Thomas, Nygil, V. D. Sudheesh, Harish Kumar Choudhary, et al.. (2019). Magnetic Properties of MFeCrO4 (M = Co/Ni) Prepared by Solution Combustion Method. Journal of Superconductivity and Novel Magnetism. 32(9). 2973–2979. 15 indexed citations

Sudheesh, V. D., Nygil Thomas, Harish Kumar Choudhary, et al.. (2018). Synthesis of nanocrystalline spinel ferrite (MFe2O4, M = Zn and Mg) by solution combustion method: Influence of fuel to oxidizer ratio. Journal of Alloys and Compounds. 742. 577–586. 65 indexed citations

Thomas, Nygil, et al.. (2017). Magnetic and dielectric properties of magnesium substituted cobalt ferrite samples synthesized via one step calcination free solution combustion method. Ceramics International. 43(9). 7305–7310. 44 indexed citations

Sebastian, Varkey, et al.. (2016). High stability of magnetic parameters in Fe–Al nanocomposite powders. Indian Journal of Physics. 90(9). 999–1008. 1 indexed citations

Sudheesh, V. D., Varkey Sebastian, N. Lakshmi, et al.. (2012). Investigation of structural and magnetic properties of Ni0.5Zn0.5Fe2O4 nano powders prepared by self combustion method. Materials Research Bulletin. 48(2). 698–704. 23 indexed citations

10.

Sebastian, Varkey, et al.. (2011). Magnetic properties of nano-sized 5 at.%Fe–Al systems. Journal of Nanoparticle Research. 13(11). 5627–5633. 1 indexed citations

11.

Lakshmi, N., et al.. (2009). Magnetic properties resulting from core-shell interactions in nanosizedNi0.25Co0.25Zn0.5Fe2O4. Physical Review B. 80(17). 18 indexed citations

12.

Lakshmi, N., et al.. (2009). Investigation of the large magnetic moment in nano-sized Cu_0.25Co_0.25Zn_0.5Fe₂O₄. Journal of Physics D Applied Physics. 42(24). 245003–245003. 12 indexed citations

13.

Lakshmi, N., Varkey Sebastian, & K. Venugopalan. (2008). Temperature-dependent magnetic properties of mechanically alloyed Al–1at% Fe. Journal of Magnetism and Magnetic Materials. 320(13). 1875–1878. 1 indexed citations

14.

Sebastian, Varkey, N. Lakshmi, & K. Venugopalan. (2008). Comparative study of the structural and magnetic properties of bulk and nanostructured Fe2CrAl. Hyperfine Interactions. 183(1-3). 61–65. 7 indexed citations

15.

Sebastian, Varkey, et al.. (2007). Ferromagnetism at room temperature in ball-milled Al-1at.%Fe. Indian Journal of Pure & Applied Physics. 45(10). 839–841. 1 indexed citations

16.

Sebastian, Varkey, N. Lakshmi, & K. Venugopalan. (2007). Mössbauer study of incompletely alloyed nanocrystalline Fe100 − x Al x prepared by high energy ball milling. Hyperfine Interactions. 174(1-3). 127–135. 1 indexed citations

17.

Sharma, Ram K., et al.. (2007). A study of nanosized Ni substituted Co–Zn ferrite prepared by coprecipitation. Journal of Magnetism and Magnetic Materials. 313(1). 198–203. 30 indexed citations

18.

Sebastian, Varkey, N. Lakshmi, & K. Venugopalan. (2007). Structural and magnetic properties of mechanically alloyed Fe–66at%Al. Intermetallics. 15(8). 1006–1012. 16 indexed citations

19.

Sebastian, Varkey, N. Lakshmi, & K. Venugopalan. (2006). Evolution of magnetic order in mechanically alloyed Al–1at%Fe. Journal of Magnetism and Magnetic Materials. 309(1). 153–159. 14 indexed citations

20.

Sebastian, Varkey, Ram K. Sharma, N. Lakshmi, & K. Venugopalan. (2006). Mössbauer and SEM study of Fe–Al film. Hyperfine Interactions. 169(1-3). 1383–1388. 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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