A. Helman

415 total citations
20 papers, 338 citations indexed

About

A. Helman is a scholar working on Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering and Physical and Theoretical Chemistry. According to data from OpenAlex, A. Helman has authored 20 papers receiving a total of 338 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Atomic and Molecular Physics, and Optics, 9 papers in Electrical and Electronic Engineering and 7 papers in Physical and Theoretical Chemistry. Recurrent topics in A. Helman's work include Semiconductor Quantum Structures and Devices (9 papers), Photochemistry and Electron Transfer Studies (7 papers) and Spectroscopy and Quantum Chemical Studies (6 papers). A. Helman is often cited by papers focused on Semiconductor Quantum Structures and Devices (9 papers), Photochemistry and Electron Transfer Studies (7 papers) and Spectroscopy and Quantum Chemical Studies (6 papers). A. Helman collaborates with scholars based in France, United Kingdom and Russia. A. Helman's co-authors include F. H. Julien, Maria Tchernycheva, E. Monroy, B. Daudin, A. Lusson, G. Fishman, Frédéric Fossard, D. Le Si Dang, E. Bellet‐Amalric and E. Warde and has published in prestigious journals such as Journal of the American Chemical Society, The Journal of Chemical Physics and Applied Physics Letters.

In The Last Decade

A. Helman

20 papers receiving 322 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
A. Helman France 9 289 176 129 71 69 20 338
R.A. English Canada 6 337 1.2× 159 0.9× 198 1.5× 34 0.5× 14 0.2× 12 479
I. Eisenstein Israel 11 201 0.7× 68 0.4× 87 0.7× 80 1.1× 65 0.9× 17 334
Jesús A. Maytorena Mexico 13 354 1.2× 47 0.3× 74 0.6× 105 1.5× 21 0.3× 40 409
Sydney G. Davison Canada 8 283 1.0× 33 0.2× 114 0.9× 43 0.6× 26 0.4× 16 375
S. Lutgen Germany 12 348 1.2× 118 0.7× 313 2.4× 38 0.5× 45 0.7× 31 463
Chi-lun Chiang United States 7 296 1.0× 20 0.1× 176 1.4× 126 1.8× 41 0.6× 8 436
Rafał Oszwałdowski United States 12 358 1.2× 27 0.2× 263 2.0× 24 0.3× 17 0.2× 28 512
John Shumway United States 13 599 2.1× 93 0.5× 302 2.3× 69 1.0× 9 0.1× 34 717
P. Weidner Germany 11 98 0.3× 157 0.9× 60 0.5× 34 0.5× 68 1.0× 31 334
V. A. Gubanov Russia 9 269 0.9× 127 0.7× 114 0.9× 32 0.5× 18 0.3× 41 411

Countries citing papers authored by A. Helman

Since Specialization
Citations

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

Fields of papers citing papers by A. Helman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of A. Helman

This figure shows the co-authorship network connecting the top 25 collaborators of A. Helman. A scholar is included among the top collaborators of A. Helman 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 A. Helman. A. Helman 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.
Samorı́, Paolo, A. Helman, Fabio Biscarini, & Franco Cacialli. (2011). Mastering Self‐Organization of Functional Materials at Different Length Scale. Advanced Functional Materials. 21(7). 1210–1211. 3 indexed citations
2.
Weert, Maarten H. M. van, A. Helman, Rienk E. Algra, et al.. (2009). Zinc Incorporation via the Vapor−Liquid−Solid Mechanism into InP Nanowires. Journal of the American Chemical Society. 131(13). 4578–4579. 35 indexed citations
3.
Vorobjev, L. E., V. Yu. Panevin, D. A. Firsov, et al.. (2007). Interband light absorption and Pauli blocking in InAs/GaAs quantum dots covered by InGaAs quantum wells. Semiconductor Science and Technology. 22(7). 814–818. 4 indexed citations
4.
Bakkers, Erik P. A. M., Magnus T. Borgström, Ethan D. Minot, et al.. (2007). Towards vertical III-V nanowire devices on silicon. TU/e Research Portal. 7. 163–164. 1 indexed citations
5.
Bakkers, Erik P. A. M., et al.. (2006). Epitaxial III-V Nanowires on Silicon for Vertical Devices. ECS Transactions. 3(2). 415–423. 1 indexed citations
6.
Tchernycheva, Maria, L. Nevou, L. Doyennette, et al.. (2005). Intraband absorption of doped GaN∕AlN quantum dots at telecommunication wavelengths. Applied Physics Letters. 87(10). 35 indexed citations
7.
Hermann, Martin, E. Monroy, A. Helman, et al.. (2004). Vertical transport in group III‐nitride heterostructures and application in AlN/GaN resonant tunneling diodes. Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics. 1(8). 2210–2227. 40 indexed citations
8.
Fossard, Frédéric, A. Helman, G. Fishman, et al.. (2004). Spectroscopy of the electronic states in InAs quantum dots grown onInxAl1−xAs/InP(001). Physical Review B. 69(15). 13 indexed citations
9.
Helman, A., Maria Tchernycheva, A. Lusson, et al.. (2004). Spectroscopy of the electron states in self‐organized GaN/AlN quantum dots. Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics. 1(6). 1456–1460. 3 indexed citations
10.
Fossard, Frédéric, A. Helman, F. H. Julien, et al.. (2003). Intraband spectroscopy of self-organized InAs/InAlAs nanostructures grown on. Physica E Low-dimensional Systems and Nanostructures. 17. 82–83. 4 indexed citations
11.
Helman, A., Frédéric Fossard, Maria Tchernycheva, et al.. (2003). Intraband spectroscopy of self-organized GaN/AlN quantum dots. Physica E Low-dimensional Systems and Nanostructures. 17. 60–63. 5 indexed citations
12.
Helman, A., Maria Tchernycheva, A. Lusson, et al.. (2003). Intersubband spectroscopy of doped and undoped GaN/AlN quantum wells grown by molecular-beam epitaxy. Applied Physics Letters. 83(25). 5196–5198. 69 indexed citations
13.
Helman, A., Frédéric Fossard, Maria Tchernycheva, et al.. (2003). Intraband absorptions in GaN/AlN quantum dots in the wavelength range of 1.27–2.4 μm. Applied Physics Letters. 82(6). 868–870. 43 indexed citations
14.
Helman, A. & T. Keyes. (1992). On statistical mechanics of solvation. The Journal of Chemical Physics. 97(9). 6737–6743. 4 indexed citations
15.
Helman, A. & T. Keyes. (1991). Onsager theorem and relation between solvation dynamics and electron transfer kinetics. The Journal of Chemical Physics. 94(1). 569–573. 5 indexed citations
16.
Helman, A.. (1989). Classical solvent dynamics in electron transfer reactions. Chemical Physics. 133(2). 271–280. 7 indexed citations
17.
Helman, A.. (1987). Electron exchange in the tetracyanoquinodimethane system: the interpretation of the unexpected solvent dependence. Chemical Physics Letters. 135(6). 529–533. 3 indexed citations
18.
Zusman, L.D. & A. Helman. (1985). Time-resolved spectroscopy of solvated electrons. Chemical Physics Letters. 114(3). 301–305. 8 indexed citations
19.
Helman, A.. (1983). On the theory of adiabatic electron-tranfers reactions in polar solvents. Chemical Physics. 79(2). 235–244. 11 indexed citations
20.
Helman, A.. (1982). The effect of intramolecular modes on the velocity of non-radiative transitions in a polar medium. Chemical Physics. 65(3). 271–279. 44 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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