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Browsing Physics by Author "SFI"

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Browsing Physics by Author "SFI"

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  • Quill, Nathan; Buckley, Noel; O’Dwyer, Colm; Lynch, Robert P. (Electrochemical Society, 2019)
    Anodization of n-InP electrodes was carried out over a range of temperatures and KOH concentrations. Scanning electron microscopy showed <111>A aligned pore growth with pore width decreasing as the temperature was increased. ...
  • Rice, Daragh; Mouras, Rabah; Gleeson, Matthew; Liu, Ning; Tofail, Syed A.M.; Soulimane, Tewfik; Silien, Christophe (American Chemical Society, 2018)
    Noble-metal nanoparticles size and packing density are critical for sensitive surface-enhanced Raman scattering (SERS) and controlled preparation of such films required to achieve reproducibility. Provided that they are ...
  • Liu, Pia; Singh, Shalini; Guo, Yina; Wang, Jian-Jun; Xu, Hongxing; Silien, Christophe; Liu, Ning; Ryan, Kevin M. (2017)
    Herein we report the formation of multi-layered arrays of vertically aligned and close packed semiconductor nanorods in perfect registry at a substrate using electric field assisted assembly. The collective properties of ...
  • Poudel, Anup; Fernandez, Marc A.; Tofail, Syed A. M.; Biggs, Manus J.P. (University of Nebraska Press, 2019)
    Analysis of the cellular response to piezoelectric materials has been driven by the discovery that many tissue components exhibit piezoelectric behavior ex vivo. In particular, polyvinylidene fluoride and the trifluoroethylene ...
  • Nirmalraj, Peter N.; Thompson, Damien; Riel, Heike E. (Nature Publishing Group, 2015)
    The drive towards organic computing is gaining momentum. Interestingly, the building blocks for such architectures is based on molecular ensembles extending from nucleic acids to synthetic molecules. Advancement in this ...
  • Barrett, Christopher A.; Singh, Ajay; Murphy, Joseph A.; O'Sullivan, Catriona; Buckley, D.N.; Ryan, Kevin M. (American Chemical Society, 2011)
    Colloidal carbon spheres were synthesized by the carbonization of squalane, a nonvolatile hydrocarbon solvent, in supercritical carbon dioxide. Precise pressure modulation of the fluid medium led to size controlled growth ...
  • Wasserberg, Dorothee; Cabanas-Danés, Jordi; Prangsma, Jord; O'Mahony, Shane; Cazade, Pierre-André; Tromp, Eldrich; Blum, Christian; Thompson, Damien; Huskens, Jurriaan; Subramaniam, Vinod; Jonkheijm, Pascal (American Chemical Society, 2017)
    We report oriented immobilization of proteins using the standard hexahistidine (His6)-Ni2+:NTA (nitrilotriacetic acid) methodology, which we systematically tuned to give control of surface coverage. Fluorescence microscopy ...
  • Yuan, Li; Nerngchamnong, Nisachol; Cao, Liang; Hamoudi, Hicham; del Barco, Enrique; Roemer, Max; Sriramula, Ravi K.; Thompson, Damien; Nijhui, Christian A. (Nature Publishing Group, 2018)
    A challenge in molecular electronics is to control the strength of the molecule–electrode coupling to optimize device performance. Here we show that non-covalent contacts between the active molecular component (in this ...
  • Rhen, Fernando M.F.; Roy, Saibal (American Institute of Physics, 2008)
    The magnetic properties of electrodeposited CoNiFe films with thicknesses varying from 0.20 to 10 µm were studied. The films show a single face-centered-cubic CoNiFe phase with grain sizes ranging from 23 to 29 nm. The ...
  • McSweeney, W; Lotty, O; Mogili, Naga Vishnu V.; Glynn, C; Geaney, Hugh; Tanner, David A.; Holmes, Justin D.; O'Dwyer, Colm (American Institute of Physics, 2013)
    By using Si(100) with different dopant type (n(++)-type (As) or p-type (B)), we show how metal-assisted chemically etched (MACE) nanowires (NWs) can form with rough outer surfaces around a solid NW core for p-type NWs, and ...
  • Kumbham, Mahendar; Daly, Susan; O'Dwyer, Kevin; Mouras, Rabah; Liu, Ning; Mani, Aladin; Peremans, André; Tofail, Syed A.M.; Silien, Christophe (Optical Society of America, 2016)
    The spatial resolution in far-field mid-infrared (λ>2.5 μm) microscopy and microspectroscopy remains limited with the full-width at half maximum of the point-spread function ca. λ/1.3; a value that is very poor in ...
  • Rhen, Fernando M.F.; Roy, Saibal (IEEE Computer Society, 2008)
    We have studied the influence of P and of plating current density on static/dynamic magnetic and electrical properties of CoNiFe high moment alloy. We found that morphology, electrical and magnetic properties of films with ...
  • Rhen, Fernando M.F.; Coey, John Michael David (Elsevier, 2008)
    We report the preparation, characterization of structure and magnetic properties of electrodeposited L1 0 FePt films with high coercivity. Equiatomic as-deposited films are nanocrystalline, soft and magnetically isotropic. ...
  • Rhen, Fernando M.F.; Coey, John Michael David (Elsevier B.V., 2009)
    We report the preparation, characterization of structure and magnetic properties of electrodeposited L1 0 FePt films with high coercivity. Equiatomic as-deposited films are nanocrystalline, soft and magnetically isotropic. ...
  • Cespedes, Oscar; Luu, A.; Rhen, Fernando M.F.; Coey, John Michael David (IEEE Computer Society, 2008)
    A method is described for the fabrication of magnetic force microscopy tips via localized electrodeposition and focused ion beam milling departing from commercial tapping mode tips. Very high aspect ratios and interacting ...
  • Nirmalraj, Peter N.; La Rosa, Andrea; Thompson, Damien; Sousa, Marilyne; Martin, Nazario; Gotsmann, Bernd; Riel, Heike E. (Nature Publishing Group, 2015)
    Predicting the electronic framework of an organic molecule under practical conditions is essential if the molecules are to be wired in a realistic circuit. This demands a clear description of the molecular energy levels ...
  • Nirmalraj, Peter N.; Thodkar, Kishan; Guerin, Sarah; Calame, Michel; Thompson, Damien (Nature Publishing Group, 2018)
    Wrinkles are a unique class of surface corrugations present over diverse length scales from Kinneyia-type wrinkles in Archean-era sedimentary fossils to nanoscopic crinkling in two-dimensional crystals. Lately, the role ...
  • Duffy, Meave; Collins, Christina; Rhen, Fernando M.F.; McCloskey, P.; Roy, Saibal (IEEE Computer Society, 2008)
    High current inductor applications operating in the MHz range are generally limited to Voltage Regulator Modules (VRM’s) and Point of Load (POL) power supplies, where the issue of fast transient response demands reduced ...
  • Rhen, Fernando M.F.; Fernandez, Damaris; Hinds, Gareth; Coey, John Michael David (The Electrochemical Society, 2006)
    The influence of an external magnetic field on the rest potential ΔE0 of ferromagnetic and nonferromagnetic electrodes is studied. The shift E0 is measured as a function of magnetic field magnitude and direction, pH, ...
  • Richardson, David; Kingston, Samuel; Rhen, Fernando M.F. (American Institute of Physics, 2016)
    Co-B nanotubes were prepared via an electroless deposition method. The morphology, magnetic properties and the magnetization reversal mechanism of the nanotubes were investigated. Deposition was carried out in porous ...

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