Hybrid nanostructures consisting of Si polycrystalline nanocones, with an anemone-like termination coated with C-nanotubes bundles, have been generated on a (1 0 0) Si substrate in a dual mode microwave/radio-frequency plasma reactor. The substrate is both heated and bombarded by energetic H ions during the synthesis process. The nanocones growth is explained considering pull of the growing Si nanocrystalline phase along the lines of the electrical field, likely via a molten/recrystallization mechanism. The one-step building of the achieved complex 3D architectures is described in terms of dynamic competition between Si and C nanotubes growth under the peculiar conditions of kinetically driven processes. (C) 2012 Elsevier B.V. All rights reserved.
Hybrid C-nanotubes/Si 3D nanostructures by one-step growth in a dual-plasma reactor / Francesco, Toschi; Silvia, Orlanducci; Valeria, Guglielmotti; Ilaria, Cianchetta; Corrado, Magni; Maria Letizia, Terranova; Matteo, Pasquali; Emanuela, Tamburri; Matassa, Roberto; Rossi, Marco. - In: CHEMICAL PHYSICS LETTERS. - ISSN 0009-2614. - STAMPA. - 539-540:(2012), pp. 94-101. [10.1016/j.cplett.2012.05.001]
Hybrid C-nanotubes/Si 3D nanostructures by one-step growth in a dual-plasma reactor
MATASSA, ROBERTO;ROSSI, Marco
2012
Abstract
Hybrid nanostructures consisting of Si polycrystalline nanocones, with an anemone-like termination coated with C-nanotubes bundles, have been generated on a (1 0 0) Si substrate in a dual mode microwave/radio-frequency plasma reactor. The substrate is both heated and bombarded by energetic H ions during the synthesis process. The nanocones growth is explained considering pull of the growing Si nanocrystalline phase along the lines of the electrical field, likely via a molten/recrystallization mechanism. The one-step building of the achieved complex 3D architectures is described in terms of dynamic competition between Si and C nanotubes growth under the peculiar conditions of kinetically driven processes. (C) 2012 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.