Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Valentin N. Popov"'
Autor:
Dmitry I. Levshov, Marina V. Avramenko, Maksiem Erkens, Huy-Nam Tran, Thi Thanh Cao, Van Chuc Nguyen, Emmanuel Flahaut, Valentin N. Popov, Ahmed-Azmi Zahab, Jean-Louis Sauvajol, Raul Arenal, Wim Wenseleers, Sofie Cambré, Matthieu Paillet
Publikováno v:
Carbon
Measuring electronic Raman scattering (ERS) has become an efficient method for structural characterization of metallic single-wall carbon nanotubes (SWCNT). However, applying this method to other types of SWCNT-based structures, e.g., those with stro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdc6f63e443d94323aad113cd5651ddd
https://doi.org/10.1016/j.carbon.2022.12.003
https://doi.org/10.1016/j.carbon.2022.12.003
Autor:
Maksiem Erkens, Dmitry Levshov, Wim Wenseleers, Han Li, Benjamin S. Flavel, Jeffrey A. Fagan, Valentin N. Popov, Marina Avramenko, Salomé Forel, Emmanuel Flahaut, Sofie Cambré
Publikováno v:
ACS Nano, 16 (10), 16038–16053
ACS nano
ACS nano
The coaxial stacking of two single-wall carbon nanotubes (SWCNTs) into a double-wall carbon nanotube (DWCNT), forming a so-called one-dimensional van der Waals structure, leads to synergetic effects that dramatically affect the optical and electronic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cbbf0840e76cdd2da256cb7cd6d238d
https://doi.org/10.1021/acsnano.2c03883
https://doi.org/10.1021/acsnano.2c03883
Publikováno v:
The Journal of Physical Chemistry C. 123:21448-21456
In the present article, graphene complexes with out-of-plane organic substances such as a triphenylmethyl radical, anion, and cation are studied. Comparison is made with the similar closed-shell mo...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da25bd1fe1867934c9feb1474ed6da2c
https://doi.org/10.1021/acs.jpcc.9b03550
https://doi.org/10.1021/acs.jpcc.9b03550
In the present work, the surface chemistry of reduced graphene oxide, modified with hydrocarbon, hydroxyl, aldehyde and carboxyl groups is studied by means of computational chemistry. The simulations by ab-initio molecular dynamics show that the reac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a420b43659ce739653c7e426188ee0d
Autor:
Valentin N. Popov
The recently reported experimental optical spectra of double-walled carbon nanotubes exhibit more peaks than it could be expected based on the layers alone. The appearance of excess peaks has been attributed to the interlayer interaction. In order to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fbe1e81e78a8e7e3dcdbdd7ba387804
http://arxiv.org/abs/2005.07082
http://arxiv.org/abs/2005.07082
Autor:
Valentin N. Popov
Publikováno v:
Journal of Raman Spectroscopy. 49:31-35
A theoretical approach to the modelling of the resonant Raman scattering by phonons in twisted bilayer graphene is developed and presented. The normally very large unit cells of twisted bilayer graphene hinder the large scale calculation of the elect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd4316124a17a0ab2e77aa187bbd15b7
https://doi.org/10.1002/jrs.5189
https://doi.org/10.1002/jrs.5189
Autor:
Valentin N. Popov
Publikováno v:
AIP Conference Proceedings.
Few-layer graphene is a two-dimensional structure, consisting of several layers of covalently bound carbon atoms, held together by weak dispersive forces. The hexagonal crystal lattice of each layer with two atoms in the unit cell gives rise to elect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d22f6c8b102a1e206cf3c329c8b5f6b
https://doi.org/10.1063/1.5091252
https://doi.org/10.1063/1.5091252
Publikováno v:
Physical Review B. 97
We analyze and assign two low-intensity, double-resonant Raman bands at around 1950 ${\mathrm{cm}}^{\ensuremath{-}1}$ and 2450 ${\mathrm{cm}}^{\ensuremath{-}1}$ in carbon nanotube ensembles. We present Raman spectra of a high-pressure carbon monoxide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cf4ae6d84be50cb4981b8927f24e15d
https://doi.org/10.1103/physrevb.97.214306
https://doi.org/10.1103/physrevb.97.214306
Publikováno v:
Physical review B
Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2018, 97 (16), pp.165417. ⟨10.1103/PhysRevB.97.165417⟩
Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2018, 97 (16), pp.165417. ⟨10.1103/PhysRevB.97.165417⟩
International audience; The interactions between the layers of double-walled carbon nanotubes induce a measurable shift of the G bands relative to the isolated layers. While experimental data on this shift in freestanding double-walled carbon nanotub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c03c1f5da46fe345b9cb2f5c746978b8
http://arxiv.org/abs/1801.03242
http://arxiv.org/abs/1801.03242
Autor:
Valentin N. Popov
It has been long accepted that the second-order Raman bands in carbon nanotubes are enhanced through the double-resonance mechanism. Although separate aspects of this mechanism have been studied for a few second-order Raman bands, including the most
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0e9c371d4492f29301e80b5f8c0933a