TITLE

Si nanocrystals obtained through polymer pyrolysis

AUTHOR(S)
Sorarù, Gian Domenico; Modena, Stefano; Bettotti, Paolo; Das, Gobind; Mariotto, Gino; Pavesi, Lorenzo
PUB. DATE
July 2003
SOURCE
Applied Physics Letters;7/28/2003, Vol. 83 Issue 4, p749
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this letter, we report the formation of bulk samples of silica-based glass containing Si nanocrystals (Si-ncs) by pyrolysis of a preceramic precursor. The starting precursor is a sol– gel-derived polysiloxane containing only Si–H groups which leads, after annealing in a controlled atmosphere in the range 1000–1200 ?C, to the precipitation of Si-ncs. Characterization of the nanostructure was performed by x-ray diffraction and Raman scattering analyses. Room-temperature luminescence experiments show the interesting optical properties of the Si-ncs/SiO[sub;2] material.
ACCESSION #
10331066

 

Related Articles

  • Si-N-C Nanowires Derived by Polyhydridomethylsilazane Pyrolysis. Gongjin Qi // Materials Sciences & Applications;Jul2011, Vol. 2 Issue 7, p936 

    The preceramic polymer, polyhydridomethylsilazane, was synthesized and pyrolyzed at 1873 K in nitrogen atmosphere to prepare Si-N-C nanowires without using any catalysts. The diameters of the nanowires were from tens of nanometers to several microns, and the maximum length of the nanowires...

  • Unimolecular thermal decomposition of phenol and d5-phenol: Direct observation of cyclopentadiene formation via cyclohexadienone. Scheer, Adam M.; Mukarakate, Calvin; Robichaud, David J.; Nimlos, Mark R.; Carstensen, Hans-Heinrich; Barney Ellison, G. // Journal of Chemical Physics;1/28/2012, Vol. 136 Issue 4, p044309 

    The pyrolyses of phenol and d5-phenol (C6H5OH and C6D5OH) have been studied using a high temperature, microtubular (μtubular) SiC reactor. Product detection is via both photon ionization (10.487 eV) time-of-flight mass spectrometry and matrix isolation infrared spectroscopy. Gas exiting the...

  • Poly(hydridocarbyne) as Highly Processable Insulating Polymer Precursor to Micro/Nanostructures and Graphite Conductors. Katzenmeyer, Aaron M.; Bayam, Yavuz; Logeeswaran, V. J.; Pitcher, Michael W.; Nur, Yusuf; Seyyidoglu, Semih; Toppare, Levent K.; Talin, A. Alec; Han, Huilan; Davis, Cristina E.; Islam, M. Saif // Journal of Nanomaterials;2009, Special section p1 

    Carbon-based electronic materials have received much attention since the discovery and elucidation of the properties of the nanotube, fullerene allotropes, and conducting polymers. Amorphous carbon, graphite, graphene, and diamond have also been the topics of intensive research. In accordance...

  • Photonics of nanostructured systems based on photochromic spiro compounds. Barachevskii, V.; Karpov, R. // High Energy Chemistry;May2007, Vol. 41 Issue 3, p188 

    A review of the results of studies on photoinduced aggregation of photochromic spiro compounds of the class of spiropyrans and spirooxazines is presented. The possibility to form aggregates of photoinduced species of various types, in particular, H and J aggregates, in liquid and solid polymer...

  • Diffuse optical harmonic generation in SiC nanopowder films: hunting scattered photons. Konorov, S. O.; Sidorov-Biryukov, D. A.; Bugar, I.; Kovac, J.; Fornarini, L.; Carpanese, M.; Avella, M.; Errico, M. E.; Chorvat Jr., D.; Fantoni, R.; Chorvat, D.; Zheltikov, A. M. // Applied Physics B: Lasers & Optics;Jan2004, Vol. 78 Issue 1, p73 

    Second- and third-harmonic generation in polymer films doped with silicon carbide nanopowders is experimentally studied in the regime of weak scattering, with the size of nanoparticles a, the elastic scattering length l, the radiation wavelength ?, and the film thickness L meeting the relations...

  • Roles of interfaces in nanostructured silicon luminescence. Ternon, C.; Dufour, C.; Gourbilleau, F.; Rizk, R. // European Physical Journal B -- Condensed Matter;Oct2004, Vol. 41 Issue 3, p325 

    The increasing interest in photonics in the field of communication has led to intense research work on silicon based nanostructures showing efficient photoluminescence. The present paper reports photoluminescence measurements obtained at room temperature in silicon-rich-silica-silica multilayers...

  • X-ray characterization of Ge epitaxially grown on nanostructured Si(001) wafers. Zaumseil, P.; Yamamoto, Y.; Bauer, A.; Schubert, M. A.; Schroeder, T. // Journal of Applied Physics;Jan2011, Vol. 109 Issue 2, p023511 

    Selective growth of Ge on nanostructured Si(001) wafers is studied to evaluate the applicability of nanoheteroepitaxy approaches on the Ge-Si system for photonics applications under particular consideration of possible growth mask materials. A gate spacer technology established in advanced...

  • Silicon colloids: A new enabling nanomaterial. Meseguer, F.; Fenollosa, R.; Rodriguez, I.; Xifré-Pérez, E.; Ramiro-Manzano, F.; Garín, M.; Tymczenko, M. // Journal of Applied Physics;May2011, Vol. 109 Issue 10, p102424 

    We have recently developed a new type of silicon structure that we refer to as a silicon colloid. This new material consists of almost perfectly spherical silicon micro- and nanoparticles with a very smooth surface. They are able to trap light very efficiently in a large-span frequency range...

  • Nanostructured materials for photon detection. Konstantatos, Gerasimos; Sargent, Edward H. // Nature Nanotechnology;Jun2010, Vol. 5 Issue 6, p391 

    The detection of photons underpins imaging, spectroscopy, fibre-optic communications and time-gated distance measurements. Nanostructured materials are attractive for detection applications because they can be integrated with conventional silicon electronics and flexible, large-area substrates,...

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