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References

Articles:

Turgut, C., Sinha, G., Mether, L., Lahtinen, J., Nordlund, K., Belmahi, M. and Philipp, P.
Analytical Chemistry, 86:11217-11225
2014

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Audinot, J. -N., Hamdan, A., Grysan, P., Fleming, Y., Noel, C., Kosior, F., Henrion, G. and Belmonte, T.
SURFACE AND INTERFACE ANALYSIS, 46(1, SI):397-400 Audinot, JN (Reprint Author), Ctr Rech Publ Gabriel Lippmann, SAM Dept, 41 Rue Brill, L-4422 Belvaux, Luxembourg. Audinot, J. -N.; Grysan, P.; Fleming, Y., Ctr Rech Publ Gabriel Lippmann, SAM Dept, L-4422 Belvaux, Luxembourg. Hamdan, A.; Noel, C.; Kosior, F.; Henrion, G.; Belmonte, T., Univ Lorraine, Inst Jean Lamour, CNRS, UMR 7198,CS 50840, F-54011 Nancy, France.
2014
ISSN: 0142-2421

Mots clefs: imaging; combinaison; characterization; plasma; nanosims; 3D

Resume: The discharge between a platinum electrode and different metallic monolayers on a silicon substrate produced sub-micrometric structures. The scanning electron microscope images showed the formation of craters with cones, holes, corona, and other exotic structures. The atomic force microscopy images allowed evaluating the depth and height of these complex structures together with the chemical information as determined by NanoSIMS imaging. The plasma impacts locally removed the mono-layer and the bilayer down to the bare silicon substrate. In order to convert the acquired NanoSIMS images into a true three-dimensional distribution of the analyzed species, the SIMS images are overlapped with the corresponding atomic force microscopy images of the same probed area. This analysis method allows a visualization of a complex 3D structure and helps understand the formation mechanisms of the streamer impact. Copyright (c) 2014 John Wiley & Sons, Ltd.

Equipe: Centre de Compétences : ERMIONE informatique et calcul

Hamdan, A., Noel, C., Ghanbaja, J. and Belmonte, T.
Plasma Chemistry and Plasma Processing, 34:1101-1114
2014

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Broch, Laurent, Stein, Nicolas, Zimmer, Alexandre, Battie, Yann and Naciri, Aotmane En
Thin Solid Films, 571, Part 3(0):509-512
2014

Mots clefs: Systematic errors In-situ ellipsometry Electrodeposition Bismuth telluride

Resume: Abstract We describe a spectroscopic ellipsometer in the visible domain (400–800 nm) based on a rotating compensator technology using two detectors. The classical analyzer is replaced by a fixed Rochon birefringent beamsplitter which splits the incidence light wave into two perpendicularly polarized waves, one oriented at + 45° and the other one at ? 45° according to the plane of incidence. Both emergent optical signals are analyzed by two identical CCD detectors which are synchronized by an optical encoder fixed on the shaft of the step-by-step motor of the compensator. The final spectrum is the result of the two averaged ? and ? spectra acquired by both detectors. We show that ? and ? spectra are acquired without systematic errors on a spectral range fixed from 400 to 800 nm. The acquisition time can be adjusted down to 25 ms. The setup was validated by monitoring the first steps of bismuth telluride film electrocrystallization. The results exhibit that induced experimental growth parameters, such as film thickness and volumic fraction of deposited material can be extracted with a better trueness.

Equipe: Département CP2S : Chimie et électrochimie des matériaux

Martin, J., Leone, P., Nominé, A., Veys-Renaux, D., Henrion, G. and Belmonte, T.
Surface and Coatings Technology, In Press - available on line
2014

Resume: The chemical stability of the electrolyte in Plasma Electrolytic Oxidation (PEO) has been the subject of much systematic investigation. The present study reports on experimental results on the ageing of a usual PEO electrolyte and its effect on the oxidation of the Al2214 aluminium alloy. A solution of potassium hydroxide ([KOH] = 1 g/L) and sodium silicate ([Na2SiO3] = 1.65 g/L) diluted in deionized water was either aged by running a process during 8 h at most or not. Comparison between materials treated in either solution was made next. Cross-checked experimental results from analytical chemistry, plasma diagnostics and materials science clearly evidence the effect of ageing of the electrolyte on the PEO process behaviour. The transition from arc to "soft" regime occurs earlier (from 18 min to 13 min processing time) as the electrolyte gets older. The concomitant decrease in the electrolyte electrical conductivity (from 7.5 mS.cm-1 to 6.8 mS.cm-1) is correlated with changes in the ionic species content in the electrolyte. Fast video-imaging (125 kfr./s) reveals that the micro-discharge characteristics are also sensitive since they become less numerous per area and unit time (from 220.103 cm-2s-1 to 120.103 cm-2s-1), exhibit shorter lifetime and have smaller sizes as the electrolyte ages. SEM observations of the as-grown coatings combined with roughness measures indicate a decrease in coating thickness ( ~ 20 %) and roughness ( ~ 30 %) while species from the electrolyte accumulate in the outer porous layer simultaneously with a gradual enrichment in a-Al2O3 phase in the inner compact layer (from 36 % to 43 %). Finally, within the PEO conditions that were used, it is shown that the ageing phenomenon of the PEO electrolyte starts to influence the process after 2 hours aged.

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Belmonte, T., Hamdan, A., Kosior, F., Noel, C. and Henrion, G.
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 47(22, SI) Belmonte, T (Reprint Author), Univ Lorraine, CNRS, Dept CP2S, Inst Jean Lamour, Parc Saurupt,CS 50840, F-54011 Nancy, France. Belmonte, T.; Hamdan, A.; Kosior, F.; Noel, C.; Henrion, G., Univ Lorraine, CNRS, Dept CP2S, Inst Jean Lamour, F-54011 Nancy, France.
2014
ISSN: 0022-3727

Mots clefs: discharges in liquids; plasma-surface interactions; nanoparticle synthesis

Resume: Discharge-surface interaction in liquids includes many phenomena which are reviewed in this work. This is used to examine results in the area of nanoparticle synthesis and to propose a general sketch of formation mechanisms.

Equipe: Centre de Compétences : ERMIONE informatique et calcul

Belmonte, T., Hamdan, A., Kosior, F., Noel, C. and Henrion, G.
Journal of Physics D: Applied Physics, 47:224016 (18 pp)
2014

Resume: Discharge-surface interaction in liquids includes many phenomena which are reviewed in this work. This is used to examine results in the area of nanoparticle synthesis and to propose a general sketch of formation mechanisms.

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Gangineni, R.B., Bellouard, C., Duluard, A., Negulescu, B., Baraduc, C., Gaudin, G. and Tiusan, C.
Applied Physics Letters, 104(18)
2014

Equipe: Département P2M : Nanomagnétisme et Electronique de Spin

Santos, M., Noel, C., Belmonte, T. and L. Alves, L.
Journal of Physics D: Applied Physics, 47:265201
2014

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Cui, C., Nugent, P. J., Shimoda, M., Ledieu, J., Fournee, V., Tsai, A. P., McGrath, R. and SHARMA, H. R.
JOURNAL OF PHYSICS-CONDENSED MATTER, 26(1)
2014
ISSN: 0953-8984

Equipe: Département CP2S : Métallurgie et Surfaces

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