2014 | |
Articles: | |
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PHYSICAL REVIEW B,
89(12)
2014
ISSN: 1098-0121
Equipe: Département P2M : Surfaces et Spectroscopies |
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Nature Materials,
13(3):286-292
2014
Equipe: Département P2M : Nanomagnétisme et Electronique de Spin |
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NATURE,
506(7488):349-354
2014
ISSN: 0028-0836
DOI: 10.1038/nature12952
Equipe: Département P2M : Surfaces et Spectroscopies |
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Plasma Processes and Polymers,
in press
2014
Resume: Silicon nanostructures are synthesized with a DC atmospheric pressure microplasma jet using an Ar/SiH4/H2 gas mixture. The plasma is characterized by OES and imaged using an EMCCD camera. The effect of hydrogen admixture to the formed structures is studied by transmission electron microscopy. Under specific conditions, crystalline silicon nanoparticles grow in an amorphous matrix investigated by electron energy loss spectroscopy. As-grown silicon nanoparticles are collected in ethanol for dynamic light scattering and photoluminescence measurements. The size distribution peaks at 4â??nm. The silicon nanocrystals exhibit roomtemperature photoluminescence that peaks at ~415 and ~465 nm Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS |
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SURFACE & COATINGS TECHNOLOGY,
255:3-7
Belmonte, T (Reprint Author), Univ Lorraine, Inst Jean Lamour, UMR CNRS 7198, F-54042 Nancy, France. Saa, D. Kuete; Kosior, F.; Al Taweel, A.; Gries, T.; Belmonte, T., Univ Lorraine, Inst Jean Lamour, UMR CNRS 7198, F-54042 Nancy, France. Saa, D. Kuete; Laminsi, S., Univ Yaounde I, Lab Chim Minerale, Yaounde 812, Cameroon. Cardoso, R. P., Univ Fed Parana, BR-81531990 Curitiba, Parana, Brazil. Gries, T.; Belmonte, T., CNRS, Inst Jean Lamour, UMR CNRS 7198, F-54042 Nancy, France.
2014
ISSN: 0257-8972
Mots clefs: RuO2; Nanostructuration; Localized growth; Micro-plasma; Afterglow Resume: Various ruthenium dioxide nanostructures were grown locally by the oxidation of ruthenium samples with an Ar-O-2 microwave micro-afterglow operated at atmospheric pressure. A special attention was paid to the distribution of the surface temperature of the sample which evolves between 530 K and 820 K. Whatever the treatment time, the temperature and the gas composition set within the studied ranges, a general nanostructure, made of lamellae separated by 20-50 nm, is found. When the temperature rises, localized nano-sea urchins, nanotubes with square sections, nano-needles, and more complex structures are found spread over the surface. Treated surfaces were characterized by different surface diagnostics (SEM, XRD, SIMS, etc.) Finally, a growth mechanism is proposed emphasizing the role of emerging defects and stress on the appearance of localized nanostructures. (C) 2013 Elsevier B.V. All rights reserved. Equipe: Centre de Compétences : ERMIONE informatique et calcul |
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Acta Materialia,
80:118--131
2014
ISSN: 1359-6454
Equipe: Département SI2M : Microstructures et Contraintes |
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Journal of Electroanalytical Chemistry,
724(0):111-117
2014
Mots clefs: Coefficient Diffusion Electrodeposition Films Sand Thermoelectric Equipe: Département CP2S : Chimie et électrochimie des matériaux |
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Inorganic Chemistry,
53 (1):147-159
2014
Equipe: Département SI2M : Microstructures et Contraintes |
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ACS Applied Materials and Interfaces,
6:13707-13715
2014
DOI: 10.1021/am503160w
Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS |
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Nature Communications,
5
2014
Equipe: Département P2M : Nanomagnétisme et Electronique de Spin |