TITLE

Metal-rich Au-silicide nanoparticles for use in nanotechnology

AUTHOR(S)
Moyen, E.; Macé, M.; Agnus, G.; Fleurence, A.; Maroutian, T.; Houzé, F.; Stupakiewicz, A.; Masson, L.; Bartenlian, B.; Wulfhekel, W.; Beauvillain, P.; Hanbücken, M.
PUB. DATE
June 2009
SOURCE
Applied Physics Letters;6/8/2009, Vol. 94 Issue 23, p233101
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present a route to functionalize chemically and magnetically silicon surfaces by a local passivation, taking advantage of Stranski–Krastanov growth mode of the Au–Si(111) system. Metal-rich Au-silicide nanoparticles, supported on a Si-rich two-dimensional Au-silicide layer, are obtained. Subsequently deposited Co is used to form magnetic nanostructures. The two Au silicides display a different chemical reactivity with Co enabling the fabrication of localized magnetic Co nanodots. These magnetic nanostructures can be aligned along step bunches of a vicinal Si(111) surface. By varying the growth parameters, the particle density can be tuned from 109 to the low 1012 dots/in.2.
ACCESSION #
41573092

 

Related Articles

  • Engineering the coupling between molecular spin qubits by coordination chemistry. Timco, Grigore A.; Carretta, Stefano; Troiani, Filippo; Tuna, Floriana; Pritchard, Robin J.; Muryn, Christopher A.; McInnes, Eric J. L.; Ghirri, Alberto; Candini, Andrea; Santini, Paolo; Amoretti, Giuseppe; Affronte, Marco; Winpenny, Richard E. P. // Nature Nanotechnology;Mar2009, Vol. 4 Issue 3, p173 

    The ability to assemble weakly interacting subsystems is a prerequisite for implementing quantum information processing and generating controlled entanglement. In recent years, molecular nanomagnets have been proposed as suitable candidates for qubit encoding and manipulation. In particular,...

  • Synthesis of high purity Au nanobelts via the one-dimensional self-assembly of triangular Au nanoplates. Zhang, Jianhui; Liu, Huaiyong; Wang, Zhenlin; Ming, Naiben // Applied Physics Letters;9/24/2007, Vol. 91 Issue 13, p133112 

    High purity (∼88%) gold nanobelts have been synthesized in the water/polyvinylpyrrolidone (PVP)/n-pentanol system created to realize the selective-adsorption of PVP on Au which directs Au to grow in belt form via the one-dimensional (1D) self-assembly of triangular Au nanoplates. These...

  • Optimization of process variables by central composite design for the immobilization of urease enzyme on functionalized gold nanoparticles for various applications. Talat, Mahe; Singh, Ashwani; Srivastava, O. // Bioprocess & Biosystems Engineering;Aug2011, Vol. 34 Issue 6, p647 

    In the present study, enzyme urease has been immobilized on amine-functionalized gold nanoparticles (AuNPs). AuNPs were synthesized using natural precursor, i.e., clove extract and amine functionalized through 0.004 M l-cysteine. Enzyme (urease) was extracted and purified from the vegetable...

  • Silicon nanotips formed by self-assembled Au nanoparticle mask. Ying Wang; Linpei Zhu; Yafei Zhang; Minglai Yang // Journal of Nanoparticle Research;Jun2010, Vol. 12 Issue 5, p1821 

    The Au nanoparticle monolayer is formed by self-assembly technology on the Si substrates terminated with different functional groups. Silicon nanotips were fabricated by a self-assembled gold colloidal particle monolayer as an etch mask. The silicon nanotips with high density and uniformity in...

  • Electron crystallography as an informative method for studying the structure of nanoparticles. Avilov, A. S.; Gubin, S. P.; Zaporozhets, M. A. // Crystallography Reports;Nov2013, Vol. 58 Issue 6, p788 

    The overwhelming majority of modern nanotechnologies deal with nanoparticles owing to the great variety of their unusual properties, which make them irreplaceable in various fields of science and technology. Since the physical properties of nanoparticles depend on their composition, structure,...

  • Luminescence Study of Silver Nanoparticles Obtained by Annealed Ionic Exchange Silicate Glasses. Véron, Olivier; Blondeau, Jean; Abdelkrim, Naas; Ntsoenzok, Esidor // Plasmonics;Jun2010, Vol. 5 Issue 2, p213 

    The photoluminescence of silver nanoparticles glasses obtained by ionic exchange and annealing is investigated for various ionic exchange times. These glasses are prepared by immersion of silicate glass samples in a molten salt bath of molar concentration 10% AgNO3 in NaNO3 at T = 320 °C....

  • GOLD IN THE PAST, TODAY AND FUTURE. Rudolf, R.; Anžel, M.; Marković, E.; Čolić, M.; Stamenković, D. // Metalurgija;2012, Vol. 51 Issue 2, p261 

    This paper deals with gold, which is described as a chemical element. Special attention is paid to its physical-chemical properties and, furthermore, where or in what form it can be found in nature. We discuss the role it has played through history and we inform how gold has been developed to...

  • Progress in "engineering up" nanotechnology devices utilizing DNA as a construction material. Niemeyer, C.M. // Applied Physics A: Materials Science & Processing;1999, Vol. 68 Issue 2, p119 

    Abstract. DNA technology is in the process of expanding into microelectronic applications. Due to its unique recognition capabilities, physicochemical stability, and mechanical rigidity, DNA is a promising construction material tot frameworks, for example, for the selective positioning of...

  • Concentration-Dependent, Size-Independent Toxicity of Citrate Capped AuNPs in Drosophila melanogaster. Vecchio, Giuseppe; Galeone, Antonio; Brunetti, Virgilio; Maiorano, Gabriele; Sabella, Stefania; Cingolani, Roberto; Pompa, Pier Paolo // PLoS ONE;Jan2012, Vol. 7 Issue 1, p1 

    The expected potential benefits promised by nanotechnology in various fields have led to a rapid increase of the presence of engineered nanomaterials in a high number of commercial goods. This is generating increasing questions about possible risks for human health and environment, due to the...

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