Materials Research: Recent submissions

  • Hoydalsvik, Kristin; Barnardo, Twilight; Winter, Rudolf; Haas, Sylvio; Tatchev, Dragomir; Hoell, Armin (2010-11-21)
    The morphology of sol–gel derived dip-coated yttria-doped zirconia films containing variable amounts of yttria has been studied using in situ grazing-incidence small-angle X-ray scattering (GISAXS) whilst heated incrementally ...
  • Weber, Richard; Benmore, Christopher; Mei, Qiang; Wilding, Martin (AIP Publishing, 2009)
    High energy, high flux X-ray sources enable new measurements of liquid and amorphous materials in extreme conditions. Aerodynamic levitation in combination with laser beam heating can be used to access high purity and ...
  • Langstaff, David; Zhu, Xi (2009-06-01)
    We present a scheme for reducing multiple triggering based on a “first-past-the-post” voting circuit interposed between the sensor amplifier/discriminators and the counters in an event-counting detector. We are currently ...
  • Finlayson, Christopher Edward; Goddard, Chris; Papachristodoulou, Elpida; Snoswell, David R. E.; Kontogeorgos, Andreas; Spahn, Peter; Hellmann, G. Peter; Hess, Ortwin; Baumberg, Jeremy J. (2011)
    We demonstrate the production of high-quality polymer opal fibers in an industrially-scalable process. These fibers exhibit structural color, based on the self-assembly of sub-micron core-shell particles, with a spectrum ...
  • Imai, Yusuke; Finlayson, Christopher Edward; Goldberg-Oppenheimer, P; Zhao, Qibin; Spahn, Peter; Snoswell, David R. E.; Haines, Andrew I.; Hellmann, G. Peter; Baumberg, Jeremy J. (2012)
    Electrically conductive polymeric 3D photonic crystals are prepared by the shear ordering of composites consisting of monodisperse core-shell polymer spheres and single-walled carbon nanotubes (SWNTs). Strong iridescent ...
  • Finlayson, Christopher Edward; Haines, Andrew I.; Snoswell, David R. E.; Kontogeorgos, Andreas; Vignolini, Silvia; Baumberg, Jeremy J.; Spahn, Peter; Hellmann, G. Peter (2011)
    We report how the strength of resonant Bragg reflection from polymeric photonic crystals (polymer opals) varies linearly with the refractive-index contrast, Δn, in contrast to the quadratic buildup of Fresnel reflections ...
  • Jelfs, Kim E.; Flikkema, Edwin; Bromley, Stefan T. (2012)
    We investigate Si8- and Si16-based silicate species via global optimisation searches and ab initio calculations and propose a new multi-mechanism interpretation of the experimentally observed atomic mixing of silicate ...
  • Flikkema, Edwin; Jelfs, Kim E.; Bromley, Stefan T. (2012-12-03)
    The low energy isomer spectrum of hydroxylated silica clusters, (SiO2)M(H2O)N, is investigated using global optimisation with an empirical potential and ab initio structural and energetic refinement. The cases M = 8, 16 ...
  • Skinner, Lawrie B.; Barnes, Adrian C.; Salmon, Philip S.; Hennet, Louis; Fischer, Henry E.; Benmore, Chris J.; Kohara, Shinji; Weber, J. K. Richard; Bytchkov, Aleksei; Wilding, Martin C.; Parise, John B.; Farmer, Thomas O.; Pozdnyakova, Irina; Tumber, Sonia K.; Ohara, Koji (2013-01-03)
    The structure of liquid alumina at a temperature similar to 2400 K near its melting point was measured using neutron and high-energy x-ray diffraction by employing containerless aerodynamic-levitation and laser-heating ...
  • Wilding, Martin Charles; Guthrie, Malcolm; Kohara, Shinji; Bull, Craig L.; Akola, Jaakko; Tucker, Matt G. (2012-06-06)
    The magnesium silicate system is an important geophysical analogue and neutron diffraction data from glasses formed in this system may also provide an initial framework for understanding the structure-dependent properties ...
  • Finlayson, Christopher Edward; Kim, Ji-Seon; Liddell, Matthew J.; Friend, Richard H.; Jung, Sung-Hyun; Grimsdale, Andrew C.; Muellen, Klaus (2008-01-28)
    We examine the photophysical properties of ladder-type pentaphenylenes, which have been prepared as prototypical "all-in-one" emissive materials bearing both electron-accepting (diaryloxadiazole) and electron-donating ...
  • Spahn, P.; Finlayson, C. E.; Etah, W. Mbi; Snoswell, David R. E.; Baumberg, J. J.; Hellmann, G. P. (2011-05-16)
    Synthetic opals, based on self-assembled arrays of core-shell (bead/matrix) polymer microspheres, are a promising platform for next-generation photonic structures, coatings and sensors. The refractive index contrast (Delta ...
  • Finlayson, Christopher Edward; Snoswell, David R. E.; Spahn, Peter; Baumberg, Jeremy J. (2011-06)
    Polymer opal photonic-crystal fibers containing self-assembled submicron core-shell particles exhibit stretch-tunable color. These mechanically robust fibers can be produced in an industrially scalable extrusion process.
  • Huang, Ya-Shih; Yang, Xudong; Schwartz, Erik; Lu, Li Ping; Albert-Seifried, Sebastian; Finlayson, Christopher Edward; Koepf, Matthieu; Kitto, Heather J.; Ulgut, Burak; Otten, Matthijs B. J.; Cornelissen, Jeroen J. L. M.; Nolte, Roeland J. M.; Rowan, Alan E.; Friend, Richard H. (2011-02-24)
    We report on the synthesis and detailed photophysical investigation of four model chromophore side chain polyisocyanopeptides: two homopolymers of platinum-porphyrin functionalized polyisocyanopeptides (Pt-porphyrin-PIC) ...
  • Haines, Andrew I.; Finlayson, Christopher Edward; Snoswell, David R. E.; Spahn, Peter; Hellmann, G. Peter; Baumberg, Jeremy J. (2012-11-20)
    Hyperspectral goniometry reveals anisotropic scattering which dominates the visual appearance of self-assembled polymer opals. The technique allows reconstruction of the reciprocal-space of nanostructures, and indicates ...
  • Snoswell, David R. E.; Creaton, Peter; Finlayson, Christopher Edward; Vincent, Brian (2011-11-01)
    When aqueous suspensions of 1 mu m, negatively charged polystyrene particles are subject to a I kHz alternating electric field of strength greater than 7 kV(rms) m(-1), dynamic elliptical dusters of particles spontaneously ...
  • Wilding, Martin; Guthrie, Malcolm; Kohara, Shinji; Bull, Craig L.; Akola, Jaakko; Tucker, Matt G. (2012-08-22)
  • Salmon, Philip S.; Drewitt, James W. E.; Whittaker, Dean A. J.; Zeidler, Anita; Wezka, Kamil; Bull, Craig L.; Tucker, Matthew G.; Wilding, Martin C.; Guthrie, Malcolm; Marrocchelli, Dario (2012-10-31)
  • Benmore, C. J.; Weber, J. K. R.; Wilding, M. C.; Du, J.; Parise, J. B. (2010-12-07)
    X-ray diffraction measurements performed on aerodynamically levitated CaSiO(3) droplets have been interpreted using a structurally heterogeneous liquid-state model. When cooled, the high-temperature liquid shows evidence ...
  • Wilding, M. C.; Benmore, C. J.; Weber, J. K. R. (2010-05-06)
    Containerless high energy X-ray diffraction measurements have been performed on molten Al2O3-SiO2 as a function of composition. The data show a strong distortion of the SiO4 tetrahedral units and a breakdown of intermediate ...

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