S. Lefrant

16.6k total citations · 3 hit papers
407 papers, 14.0k citations indexed

About

S. Lefrant is a scholar working on Polymers and Plastics, Electrical and Electronic Engineering and Materials Chemistry. According to data from OpenAlex, S. Lefrant has authored 407 papers receiving a total of 14.0k indexed citations (citations by other indexed papers that have themselves been cited), including 235 papers in Polymers and Plastics, 193 papers in Electrical and Electronic Engineering and 186 papers in Materials Chemistry. Recurrent topics in S. Lefrant's work include Conducting polymers and applications (215 papers), Organic Electronics and Photovoltaics (103 papers) and Carbon Nanotubes in Composites (97 papers). S. Lefrant is often cited by papers focused on Conducting polymers and applications (215 papers), Organic Electronics and Photovoltaics (103 papers) and Carbon Nanotubes in Composites (97 papers). S. Lefrant collaborates with scholars based in France, Romania and Poland. S. Lefrant's co-authors include Guy Louarn, J.P. Buisson, S. Quillard, P. Bernier, I. Baltog, M. Baibarac, Catherine Journet, Adam Proń, Annick Loiseau and Wolfgang K. Maser and has published in prestigious journals such as Nature, Journal of the American Chemical Society and Physical Review Letters.

In The Last Decade

S. Lefrant

398 papers receiving 13.6k 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.

Large-scale production of single-walled carbon nanotubes by the electric-arc technique

1997 2.0k citations P. Bernier, S. Lefrant et al. profile →
Vibrational analysis of polyaniline: A comparative study of leucoemeraldine, emeraldine, and pernigraniline bases

1994 684 citations Guy Louarn, S. Lefrant et al. Physical review. B, Condensed matter profile →
In Situ Spectroelectrochemical Raman Studies of Poly(3,4-ethylenedioxythiophene) (PEDT)

1999 645 citations Guy Louarn, J.P. Buisson et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
S. Lefrant France	54	7.2k	6.9k	6.2k	3.2k	2.1k	407	14.0k
Neal R. Armstrong United States	62	6.3k 0.9×	4.6k 0.7×	10.3k 1.7×	1.8k 0.6×	1.1k 0.5×	310	14.4k
W. R. Salaneck Sweden	68	6.8k 1.0×	11.4k 1.6×	16.8k 2.7×	3.7k 1.2×	1.7k 0.9×	255	22.1k
Mikhail E. Itkis United States	59	11.6k 1.6×	3.2k 0.5×	5.2k 0.8×	4.3k 1.4×	3.3k 1.6×	137	16.8k
John P. Ferraris United States	63	5.5k 0.8×	5.7k 0.8×	8.1k 1.3×	2.5k 0.8×	5.2k 2.5×	208	16.1k
Alexander Kuhn France	55	4.0k 0.6×	1.8k 0.3×	6.1k 1.0×	3.0k 0.9×	1.1k 0.5×	398	12.7k
Debra R. Rolison United States	58	5.9k 0.8×	2.7k 0.4×	10.1k 1.6×	1.5k 0.5×	6.4k 3.1×	210	16.4k
Andrew J. Lovinger United States	72	5.2k 0.7×	9.8k 1.4×	9.5k 1.6×	5.1k 1.6×	1.4k 0.7×	155	19.2k
G. B. Street United States	44	1.6k 0.2×	6.0k 0.9×	4.8k 0.8×	1.5k 0.5×	1.2k 0.6×	117	8.7k
Klaus‐Dieter Kreuer Germany	59	9.3k 1.3×	2.4k 0.4×	15.9k 2.6×	5.3k 1.7×	2.8k 1.3×	116	21.7k
Zhizhen Ye China	71	12.5k 1.7×	2.8k 0.4×	13.8k 2.2×	2.6k 0.8×	4.9k 2.4×	716	20.2k

Countries citing papers authored by S. Lefrant

Since Specialization

Citations

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

Fields of papers citing papers by S. Lefrant

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of S. Lefrant

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

Lefrant, S. & P. Bernier. (2023). Carbone Dans Tous Ses Etats. 1 indexed citations

Baibarac, M., et al.. (2017). Infrared dichroism studies and anisotropic photoluminescence properties of poly(para-phenylene vinylene) functionalized reduced graphene oxide. RSC Advances. 7(12). 6931–6942. 7 indexed citations

Massuyeau, Florian, J. Wéry, Jean‐Luc Duvail, et al.. (2015). Electronic interaction in composites of a conjugated polymer and carbon nanotubes: first-principles calculation and photophysical approaches. Beilstein Journal of Nanotechnology. 6. 1138–1144. 8 indexed citations

Baltog, I., M. Baibarac, S. Lefrant, & Pedro Gómez‐Romero. (2009). Surface Enhanced Raman Scattering Studies on Poly(3,4-ethylene dioxythiophene)/Single-Walled Carbon Nanotubes Composites and Their Application to Rechargeable Lithium Batteries. Journal of Nanoscience and Nanotechnology. 9(10). 6204–6209. 7 indexed citations

Obraztsova, Ekaterina A., А. V. Osadchy, Е. Д. Образцова, S. Lefrant, & I. V. Yaminsky. (2008). Statistical analysis of atomic force microscopy and Raman spectroscopy data for estimation of graphene layer numbers. physica status solidi (b). 245(10). 2055–2059. 49 indexed citations

Lefrant, S., I. Baltog, & M. Baibarac. (2005). Surface‐enhanced Raman scattering studies on chemically transformed carbon nanotube thin films. Journal of Raman Spectroscopy. 36(6-7). 676–698. 35 indexed citations

Mulazzi, E., Roberta Perego, L. Mihuţ, et al.. (2004). Photoconductivity and optical properties in composites of poly(paraphenylene vinylene) and single-walled carbon nanotubes. Physical Review B. 70(15). 39 indexed citations

López, M. J., Ángel Rubio, J. A. Alonso, et al.. (2002). Patching and Tearing Single-Wall Carbon-Nanotube Ropes into Multiwall Carbon Nanotubes. Physical Review Letters. 89(25). 255501–255501. 49 indexed citations

Wojciechowski, R., et al.. (2000). Low frequency Raman spectroscopy of β″-(ET)2Br0.5ICl1.5 single crystals. Synthetic Metals. 109(1-3). 305–308. 4 indexed citations

10.

Łapkowski, M., R. Kiebooms, J. Gelan, et al.. (1999). Spectroelectrochemical behaviour of poly(2,5-dithienylene-isothianaphthene) and its analogue deuterated on the benzene ring. Polish Journal of Chemistry. 73(8). 1379–1389. 1 indexed citations

11.

Giffard, Michel, Thien‐Phap Nguyen, P. Molinié, & S. Lefrant. (1999). Polyvinylene disulfide: Synthesis and protic doping, structural characterization, electrical and magnetic properties. Synthetic Metals. 101(1-3). 453–454. 1 indexed citations

12.

Wojciechowski, R., Jacek Ulański, S. Lefrant, E. Faulques, & Elena Laukhina. (1999). Micro-Raman spectroscopy of single crystals of ET salts with mixed trihalide anions. Synthetic Metals. 103(1-3). 1979–1980. 2 indexed citations

13.

Baïtoul, Mimouna, et al.. (1997). Spectroelectrochemical and structural studies of p-doped poly(p-phenylene vinylene). Synthetic Metals. 84(1-3). 623–624. 9 indexed citations

14.

Berrada, Khalid, et al.. (1995). Polyanilines and substituted polyanilines: a comparative study of the Raman spectra of leucoemeraldine, emeraldine and pernigraniline. Synthetic Metals. 69(1-3). 201–204. 58 indexed citations

15.

Périchaud, A., et al.. (1989). “Dehydrochlorinated PVC : Stability of the conjugated system”. Solid State Communications. 72(5). 413–418. 3 indexed citations

16.

Proń, Adam, E. Faulques, & S. Lefrant. (1987). On the hydrolysis of p-type doped polyacetylene.. 28(1). 27–30. 2 indexed citations

17.

Bernier, P., S. Lefrant, M. Rolland, et al.. (1983). Thermal isomerization and degradation of polyacetylene. Journal of Electronic Materials. 12(2). 289–322. 7 indexed citations

18.

Rzepka, E., Jean‐Louis Doualan, S. Lefrant, & L. Taurel. (1982). Raman scattering induced by V centres in KBr. Journal of Physics C Solid State Physics. 15(5). L119–L123. 13 indexed citations

19.

Ghomi, Mahmoud, J.P. Buisson, S. Lefrant, E. Rzepka, & L. Taurel. (1982). Resonance Raman scattering induced byFcenters in NaI. Physical review. B, Condensed matter. 25(8). 5461–5477. 1 indexed citations

20.

Lefrant, S., et al.. (1974). Optical absorption spectrum of the U centre in SrCl2. Solid State Communications. 15(1). 77–80. 4 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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