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Title

New advances in Gas-Phase synthesis of nanoparticles

AuthorsHuttel, Yves ; Mayoral, Álvaro; Martínez-Orellana, Lidia ; García-Martín, José Miguel ; Fernández-Martínez, Iván ; García-Hernández, M. ; Galiana, Beatriz ; Ballesteros Pérez, Carmen Inés
Issue Date3-Apr-2018
CitationMRS Spring Meeting (2018)
AbstractSince the seminal work of Haberland¿s group [1], magnetron based gas aggregation sources (GAS) have been used in an increasing number of nanoparticles studies. As compared to other GAS, the magnetron based GAS have gained popularity probably thanks to their relative ease to use, and to the fact that the majority of the generated nanoparticles are charged which allows their manipulation (filtering and deflection) [2]. In this talk we will address issues not fully investigated nor understood of the magnetron based GAS. This includes the control of the race-track that is formed in circular magnetron sputtering through the use of a Full Face Erosion (FFE) magnetron that has been developed for the first time in GAS. We will show how such design allows a more stable generation of nanoparticles over extended periods of time. We will also address the use of High-Power Impulse Magnetron Sputtering (HiPIMS) in GAS, focusing on its use for the generation of alloyed nanoparticles. In particular we will show for the first time that HiPIMS allows the generation of a variety of Co50Au50 nanoparticles not accessible in Direct Current GAS. Finally, we will address the assisted generation of nanoparticles by controlled injection of gases in GAS. Although already know, the injection of gases in the GAS that can have important effects on the generation of nanoparticles is not fully understood. Here we will present new results to illustrate the drastic impact of gas injection on the generation of Au nanoparticles in GAS. References [1] H. Haberland, M. Karrais, M. Mall, Zeitschrift für Physik D Atoms, Molecules and Clusters 1991, 413-415; H. Haberland, M. Karrais, M. Mall, Y. Thurner, Journal of Vacuum Science and Technology A: Vacuum, Surfaces, and Films 1992, 10, 3266-3271. [2] Gas-Phase Synthesis of Nanoparticles, Wiley, 2017, Ed. Y. Huttel.
DescriptionTrabajo presentado en el Materials Research Society (MRS) Spring Meeting, celebrado en Phoenix (Arizona, Estados Unidos), del 2 al 6 de abril de 2018
URIhttp://hdl.handle.net/10261/182191
Appears in Collections:(ICMM) Comunicaciones congresos
(IMN-CNM) Comunicaciones congresos
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