OAJ Materials and Devices 2022-10-19T15:28:28+00:00 Pierre Saint-Gregoire Open Journal Systems <p>Materials and Devices is an Open Access journal managed by academics, which publishes original, and peer-reviewed papers accessible only via internet, freely for all. Your published article can be freely downloaded, and self archiving of your paper is allowed and encouraged!</p> <p>The topics covered by the journal are wide, Materials and Devices aims at publishing papers on all aspects of studies on materials, and related devices. This includes solid state physics and chemistry, chemical physics, materials science, microelectronics, photonics,... and all types of materials.</p> <p>Papers on biomaterials, geomaterials, archeomaterials or on studies of ancient materials are also welcome. A particular attention is also paid on environmental studies related with materials and on materials relevant to environment preservation.</p> <p>Authors are also encouraged to submit papers on theoretical studies applied to materials, including pure mathematical approaches, physical approaches, models, numerical simulations, etc.</p> <p>We apply « the principles of transparency and best practice in scholarly publishing» as defined by the Committee on Publication Ethics (COPE).<br /><br />Materials and Devices is now indexed by the DOAJ and published articles receive a DOI. </p> <p>Articles are published under the responsability of authors, in particular concerning the respect of copyrights; we ask authors to consider this point very seriously because any figure (or table) already published (even by the author himself) in another journal is generally submitted to copyrights. In that case authors should ask for permission to reproduce the figure in his article.</p> <p>Another very important point is plagiarism. Authors should be careful not to plagiarize other works; we check articles for plagiarism, and authors who would submit a plagiarized article (or partially plagiarized) will be bannished from the journal.</p> <p>Readers are aware that the contents of published articles may involve hazardous experiments if reproduced; the reproduction of experimental procedures described in articles is under the responsability of readers and their own analysis of potential danger.</p> <p><strong>Downloads: <a href="">Flier of the journal </a> Article templates:</strong> there is a special template for review articles, other types of articles may be edited with the general template. See the last issue of the journal to get the updated templates, containing also instructions for authors.</p> Development of a home-made experimental set-up for in situ coupling under vacuum of conductivity measurements, x-ray absorption and Raman Spectroscopies on bundles of single-walled carbon nanotubes intercalated with alkali metals 2022-06-01T13:46:34+00:00 Laurent Alvarez Yann Almadori Eric Alibert Jérôme Barbat Rémi Jélinek Guillaume Prévot Raymond Aznar Ahmed Zahab Valérie Briois Jean-Louis Bantignies <p>Here, we report the development of a homemade experimental setup to perform under vacuum an <em>in situ</em> study of the physical properties of bundles of single-walled carbon nanotubes intercalated with rubidium ions using electrical conductivity, X-ray absorption and Raman measurements. &nbsp;This set-up was successfully used at the SAMBA beamline at the Soleil synchrotron. The electrical resistance displays an important drop with the stoichiometry (intercalation time). The Raman radial breathing modes and the G-band of the nanotubes clearly indicate an important electron transfer. The G-band behaviour features a transition from semiconducting to metallic nanotubes, confirmed by the electrical resistance measurements as a function of the temperature after rubidium intercalation. This set-up can be used for the study of any type of extremely air sensitive materials.</p> 2022-06-17T00:00:00+00:00 Copyright (c) 2022 Laurent Alvarez, Yann Almadori, Eric Alibert, Jérôme Barbat, Rémi Jélinek, Guillaume Prévot, Raymond Aznar, Ahmed Zahab, Valérie Briois, Jean-Louis Bantignies Spectrophysics of Coumarin-Based Chromophore 2022-04-09T15:21:27+00:00 Faisal Rasool Amir Sohail <p>In this work, we comprehensively explore the spectral and photophysical properties of a coumarin-based dye (<strong>1</strong>) in neat solvents. The modulation of stokes shifts, emission quantum yields (?<sub>F</sub>) and excited-state lifetimes of <strong>1</strong> by local environment (polarity, polarizability, viscosity and hydrogen bonding) signifies the formation of intramolecular charge state (ICT) from the amino group to the coumarin moiety. Collectively, in the more viscous polar solvents the rotation of the amino group is restricted, exponentially decreasing the non-radiative rate constants (<em>k<sub>n</sub></em><sub>r</sub>).</p> 2022-04-09T00:00:00+00:00 Copyright (c) 2022 Faisal Rasool; Amir Sohail Mini review Applications of FRET-based supramolecular architectures for temperature sensing and Cancer diagnosis: A mini-review 2021-11-10T14:25:59+00:00 Amir Sohail <p>Supramolecular nanostructured materials, displaying Förster resonance energy transfers (FRET) signals, have become the focus of interest for many researchers across the globe. FRET based supramolecular systems have extended applications in areas as diverse as materials science, biochemistry, analytical chemistry, and nanomedicine. The non-covalent phenomena operating in supramolecular frameworks depends on many factors such as wide range of time scales, binding strengths, distances, and concentrations of the supramolecular components (host and guest). Here in, we focus in which FRET has been used to study non-covalent interactions having a key role of cancer diagnosis and temperature sensing in supramolecular systems. Furthermore, we have discussed FRET-based architectures with current advancement in the field and provide a perspective on new advancement for the future.</p> 2022-02-24T00:00:00+00:00 Copyright (c) 2022 Amir Sohail Electrical capturing system for train supplying and involving parameters. 2022-10-19T15:28:28+00:00 Yaovi GAGOU Sabrina Ait Mohamed Brice Jonckheere Robert Bouzerar <p>Electric trains are powered by a current distribution device which depends on several parameters. This takes into account electrical energy production, its transportation and distribution. These cannot be assumed without energy loss. In the case of train navigation electric current can be transmitted by spots established between sources and the train. These spots represent a serious problem to be solved for good energy consumption since they depend on interface contact between pantograph and catenary. In these conditions it is worth to describe in the present paper all aspects governing the good functionality of energy production, its distribution and consumption to perform train activity.</p> 2022-12-06T00:00:00+00:00 Copyright (c) 2022 Yaovi GAGOU, PhD., Brice Jonckheere, Robert Bouzerar Microstructure of zirconium carbide ceramics synthesized by spark plasma sintering 2022-05-23T09:17:50+00:00 Bilal Abass Bilal Alawad Hesham Abdelbagi Ali Abdelbagi Tshepo Ntsoane Thulani Hlatshwayo <p>Zirconium carbide (ZrC) samples were prepared by spark plasma sintering (SPS), at temperatures of 1700 °C, 1900 °C and 2100 °C, all at pressure of 50 megapascal (MPa). The density of ZrC ceramic pellets was measured using a Micromeritics AccuPyc II 1340 Helium Pycnometer. The density of ZrC ceramic pellets was found to increase from (6.51 ± 0.032) g/cm<sup>3</sup> to (6.66 ± 0.039) g/cm<sup>3 </sup>and (6.70 ± 0.017) g/cm<sup>3 </sup>when the temperature of the SPS was increased from 1700 <sup>o</sup>C to 1900 <sup>o</sup>C and 2100 <sup>o</sup>C respectively. Moreover, the hardness of ZrC ceramic pellets were measured using Rockwell hardness test. The hardness of ZrC ceramic pellets increased from (7.4 ± 0.83) to (17.0 ± 0.073) and (18.4± 0.05) gigapascals (GPa) at temperatures of 1700 <sup>o</sup>C, 1900 <sup>o</sup>C and 2100 <sup>o</sup>C respectively. X-ray diffraction shows the absence of spurious phases or impurity. XRD results showed that, all prepared ZrC samples has the same preferred orientation of the planes (i.e., 200). Furthermore, the average grain size of ZrC was calculated using Sherrers’s equation. The average grain size of the pure ZrC powder increased from 67.46 nm to 72 nm, 79 nm and 83 nm when the ZrC powder was sinteried at temperatures of 1700 <sup>o</sup>C, 1900 <sup>o</sup>C and 2100 <sup>o</sup>C respectively. The differences in the average grain size between the prepared samples leads to show different surface morphologies that monitored by scanning electron microscopy (SEM).</p> 2022-05-23T00:00:00+00:00 Copyright (c) 2022 B.A.B. Alawad, H.A.A. Abdelbagi, Tshepo Ntsoane, Thulani Hlatshwayo 2022 - Updated template 2022-04-08T18:07:59+00:00 Pierre Saint Gregoire <p>This is the updated template to be used to submit the final version of your article submitted to the OAJ Materials and Devices.</p> <p>"Review" and "Methods" articles are based on different templates.</p> <p>When submitting, please fill all details asked in the different steps, it is in particular necessary to enter all authors, and article metadata (list of references, disciplines, fields, keywords, etc).</p> <p>Submissions with incomplete data will be rejected.</p> 2022-04-08T00:00:00+00:00 Copyright (c) 2022 Pierre Saint Gregoire