TITLE

High density flux of Co nanoparticles produced by a simple gas aggregation apparatus

AUTHOR(S)
Landi, G. T.; Romero, S. A.; Santos, A. D.
PUB. DATE
March 2010
SOURCE
Review of Scientific Instruments;Mar2010, Vol. 81 Issue 3, p033908
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Gas aggregation is a well known method used to produce clusters of different materials with good size control, reduced dispersion, and precise stoichiometry. The cost of these systems is relatively high and they are generally dedicated apparatuses. Furthermore, the usual sample production speed of these systems is not as fast as physical vapor deposition devices posing a problem when thick samples are needed. In this paper we describe the development of a multipurpose gas aggregation system constructed as an adaptation to a magnetron sputtering system. The cost of this adaptation is negligible and its installation and operation are both remarkably simple. The gas flow for flux in the range of 60–130 SCCM (SCCM denotes cubic centimeter per minute at STP) is able to completely collimate all the sputtered material, producing spherical nanoparticles. Co nanoparticles were produced and characterized using electron microscopy techniques and Rutherford back-scattering analysis. The size of the particles is around 10 nm with around 75 nm/min of deposition rate at the center of a Gaussian profile nanoparticle beam.
ACCESSION #
48911781

 

Related Articles

  • Preparation of Co Mössbauer sources in a chromium matrix: Methodological aspects. Alekseev, I. // Radiochemistry;Apr2012, Vol. 54 Issue 2, p180 

    A cycle of studies resulted in the development of a simple technology for preparing Co Mössbauer sources in a chromium matrix. X-ray diffraction studies and SEM examination of the surface morphology of specimens with different chemical histories (slides of 99.98% electrolytic Cr; thin films...

  • TRANSMISSION ELECTRON MICROSCOPY STUDY OF Ge NANOPARTICLES FORMED IN GeSiO FILMS BY ANNEALING IN HYDROGEN. TEODORESCU, V. S.; MARALOIU, A. V.; STAVARACHE, I.; LEPADATU, A. -M.; CIUREA, M. L. // Digest Journal of Nanomaterials & Biostructures (DJNB);Oct-Dec2013, Vol. 8 Issue 4, p1771 

    This paper presents a detailed transmission electron microscopy (TEM) study of GeSiO films with Ge nanoparticles. The films with 2.5 μm thickness were deposited by magnetron sputtering and subsequently annealed in H2 at 2 atm and 500 °C for 2 h for nanostructuring. After H2 annealing, the...

  • Lifetime of anode polymer in magnetically insulated ion diodes for high-intensity pulsed ion beam generation. Zhu, X. P.; Dong, Z. H.; Han, X. G.; Xin, J. P.; Lei, M. K. // Review of Scientific Instruments;Feb2007, Vol. 78 Issue 2, p023901 

    Generation of high-intensity pulsed ion beam (HIPIB) has been studied experimentally using polyethylene as the anode polymer in magnetically insulated ion diodes (MIDs) with an external magnetic field. The HIPIB is extracted from the anode plasma produced during the surface discharging process...

  • Chalcopyrite/Si Heterojunctions for Photovoltaic Applications. Akpa, O.; Shoieb, S.; Thompson, T.; Isaacs-Smith, T.; Anderson, P.; Seraphin, S.; Das, K. // Journal of Electronic Materials;Nov2010, Vol. 39 Issue 11, p2462 

    Films of CuInSe (CIS) and CuGaSe (CGS) were deposited on (100) Si by radiofrequency (RF) magnetron sputtering from stoichiometric CIS and CGS targets. Rutherford backscattering (RBS) analysis yielded a composition of CuInSe for CuInSe, which indicates that these films were Cu and Se poor. A...

  • Structural and optical properties of visible active photocatalytic WO3 thin films prepared by reactive dc magnetron sputtering. Johansson, Malin B.; Niklasson, Gunnar A.; Österlund, Lars // Journal of Materials Research;Dec2012, Vol. 27 Issue 24, p3130 

    Nanostructured tungsten trioxide films were prepared by reactive dc magnetron sputtering at different working pressures Ptot = 1–4 Pa. The films were characterized by scanning electron microscopy, x-ray diffraction, Rutherford backscattering spectroscopy, Raman spectroscopy, and...

  • Sputtering deposition of Pt nanoparticles on vertically aligned multiwalled carbon nanotubes for sensing L-cysteine. Ye, Min-Ling; Xu, Bin; Zhang, Wei-De // Microchimica Acta;Mar2011, Vol. 172 Issue 3/4, p439 

    highly sensitive electrochemical sensor for determination of L-cysteine (CySH) is presented. It is based on vertically aligned multiwalled carbon nanotubes modified with Pt nanoparticles by magnetron sputtering deposition. The morphology of the nanocomposite was characterized by scanning...

  • Structure and electrical transport in films of Ge nanoparticles embedded in SiO matrix. Stavarache, Ionel; Lepadatu, Ana-Maria; Maraloiu, Adrian; Teodorescu, Valentin; Ciurea, Magdalena // Journal of Nanoparticle Research;Jul2012, Vol. 14 Issue 7, p1 

    The films containing Ge nanoparticles embedded in SiO matrix were prepared by RF magnetron sputtering and subsequently by thermal annealing. Their structure was investigated by conventional transmission electron microscopy and high resolution transmission electron microscopy together with...

  • The morphology of mass selected ruthenium nanoparticles from a magnetron-sputter gas-aggregation source. Nielsen, R. M.; Murphy, S.; Strebel, C.; Johansson, M.; Chorkendorff, I.; Nielsen, J. H. // Journal of Nanoparticle Research;May2010, Vol. 12 Issue 4, p1249 

    We have investigated the morphology of mass selected ruthenium nanoparticles produced with a magnetron-sputter gas-aggregation source. The nanoparticles are mass selected using a quadrupole mass filter, resulting in narrow size distributions and average diameters between 2 and 15 nm. The...

  • Structural investigations of Ge nanoparticles embedded in an amorphous SiO matrix. Stavarache, Ionel; Lepadatu, Ana-Maria; Gheorghe, Nicoleta; Costescu, Ruxandra; Stan, George; Marcov, Dan; Slav, Adrian; Iordache, Gheorghe; Stoica, Tionica; Iancu, Vladimir; Teodorescu, Valentin; Teodorescu, Cristian; Ciurea, Magdalena // Journal of Nanoparticle Research;Jan2011, Vol. 13 Issue 1, p221 

    Transmission electron microscopy and X-ray photoelectron spectroscopy analyses are performed to investigate Ge nanoparticles embedded in an amorphous SiO matrix. GeSiO thin films are prepared by two methods, sol-gel and radio frequency magnetron sputtering. After the deposition, the sol-gel...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics