Search Results - "Shields, P. A."

Point Defects in InGaN/GaN Core–Shell Nanorods: Role of the Regrowth Interface by Loeto, K, Kusch, G, Coulon, P-M, Fairclough, SM, Boulbar, E Le, Girgel, I, Shields, PA, Oliver, RA

“…Abstract Core-shell nanorod based light-emitting diodes (LEDs) with their exposed non-polar surfaces have the potential to overcome the limitations of planar…”
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Chirality assignment of single-walled carbon nanotubes with strain by LI, Lain-Jong, NICHOLAS, R. J, DEACON, R. S, SHIELDS, P. A

“…Strain-induced band gap shifts that depend strongly on the chiral angle have been observed by optical spectroscopy in single-walled carbon nanotubes (SWCNTs)…”
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Understanding resolution limit of displacement Talbot lithography by Chausse, P J P, Le Boulbar, E D, Lis, S D, Shields, P A

“…Displacement Talbot lithography (DTL) is a new technique for patterning large areas with sub-micron periodic features with low cost. It has applications in…”
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Broadband moth-eye antireflection coatings fabricated by low-cost nanoimprinting by Chen, Q., Hubbard, G., Shields, P. A., Liu, C., Allsopp, D. W. E., Wang, W. N., Abbott, S.

“…Subwavelength scale antireflection moth-eye structures in silicon were fabricated by a wafer-scale nanoimprint technique and demonstrated an average reflection…”
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Creation of regular arrays of faceted AlN nanostructures via a combined top-down, bottom-up approach by Armstrong, R., Coulon, P-M., Bozinakis, P., Martin, R.W., Shields, P.A.

“…•Combined top-down bottom-up approach as alternative to AlN selective area growth.•Purely AlN nanostructures suitable to house GaN quantum dots.•Uniform AlN…”
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Pulsed epitaxial lateral overgrowth of GaN by metalorganic vapour phase epitaxy by Liu, C., Shields, P.A., Denchitcharoen, S., Stepanov, S., Gott, A., Wang, W.N.

“…A mixed pulsed and normal GaN epitaxial lateral overgrowth (ELO-GaN) by epitaxy metalorganic vapour phase epitaxy (MOVPE) is reported in this study. Monitoring…”
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Structural impact on the nanoscale optical properties of InGaN core-shell nanorods by Griffiths, J. T., Ren, C. X., Coulon, P.-M., Le Boulbar, E. D., Bryce, C. G., Girgel, I., Howkins, A., Boyd, I., Martin, R. W., Allsopp, D. W. E., Shields, P. A., Humphreys, C. J., Oliver, R. A.

“…III-nitride core-shell nanorods are promising for the development of high efficiency light emitting diodes and novel optical devices. We reveal the nanoscale…”
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AlN overgrowth of nano-pillar-patterned sapphire with different offcut angle by metalorganic vapor phase epitaxy by Walde, S., Hagedorn, S., Coulon, P.-M., Mogilatenko, A., Netzel, C., Weinrich, J., Susilo, N., Ziffer, E., Matiwe, L., Hartmann, C., Kusch, G., Alasmari, A., Naresh-Kumar, G., Trager-Cowan, C., Wernicke, T., Straubinger, T., Bickermann, M., Martin, R.W., Shields, P.A., Kneissl, M., Weyers, M.

“…•Fabrication of nano-pillars on sapphire using Displacement Talbot Lithography.•AlN overgrowth shows smooth surface by changing offcut from 0.2° to…”
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Antigenic and genetic variation in cytopathic hepatitis A virus variants arising during persistent infection: evidence for genetic recombination by LEMON, S. M, MURPHY, P. C, SHIELDS, P. A, LI-HUA PING, FEINSTONE, S. M, CROMEANS, T, JANSEN, R. W

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Design and fabrication of enhanced lateral growth for dislocation reduction in GaN using nanodashes by Le Boulbar, E.D., Priesol, J., Nouf-Allehiani, M., Naresh-Kumar, G., Fox, S., Trager-Cowan, C., Šatka, A., Allsopp, D.W.E., Shields, P.A.

“…•Selective growth of GaN from nanodashes depends on their crystallographic alignment.•Nanodashes can be tiled to preserve the fast {11−22} laterally-growing…”
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InGaAs/GaAs quantum wells and quantum dots on (111)B orientation by Tyan, S.L., Lin, Y.G., Tsai, F.Y., Lee, C.P., Shields, P.A., Nicholas, R.J.

“…We report a magneto optical characterization of InGaAs/GaAs quantum well (QW) and quantum dot (QD) structures grown on (111)B GaAs substrates. The…”
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Magneto-photoluminescence of AlGaN/GaN quantum wells by Shields, P.A., Nicholas, R.J., Grandjean, N., Massies, J.

“…The magneto-luminescence of GaN/AlGaN quantum wells in fields up to 52 T shows a field dependence that is strongly dependent on the well width. Strong…”
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Influence of salts on electrostatic interactions between poliovirus and membrane filters by Shields, P A, Farrah, S R

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Concentration of viruses in beef extract by flocculation with ammonium sulfate by SHIELDS, P. A, FARRAH, S. R

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Survival and transport of hepatitis A virus in soils, groundwater and wastewater by SOBSEY, M. D, SHIELDS, P. A, HAUCHMAN, F. H, HAZARD, R. L, CATON, L. W. III

“…Hepatitis A virus (HAV), poliovirus type 1 and echovirus type 1 were studied for their adsorption and survival in groundwater, wastewater and soils suspended…”
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Characterization of Virus Adsorption by Using DEAE-Sepharose and Octyl-Sepharose by SHIELDS, Patricia A, FARRAH, Samuel R

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In situ monitoring of GaN epitaxial lateral overgrowth by spectroscopic reflectometry by Liu, C., Stepanov, S., Shields, P. A., Gott, A., Wang, W. N., Steimetz, E., Zettler, J.-T.

“…The application of spectroscopic reflectometry to the monitoring of epitaxial lateral overgrowth of GaN in low pressure metalorganic vapor phase epitaxy has…”
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Modified membrane-filter procedure for concentration of enteroviruses from tap water by SHIELDS, P. A, BERENFELD, S. A, FARRAH, S. R

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Optical properties and resonant cavity modes in axial InGaN/GaN nanotube microcavities by Coulon, P. -M., Pugh, J. R., Athanasiou, M., Kusch, G., Le Boulbar, E. D., Sarua, A., Smith, R., Martin, R. W., Wang, T., Cryan, M., Allsopp, D. W. E., Shields, P. A.

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Properties of narrow gap quantum dots and wells in the InAs/InSb/GaSb systems by Nicholas, R.J, Shields, P.A, Child, R.A, Li, L.J, Alphandéry, E, Mason, N.J, Bumby, C

“…The properties of InSb quantum dots grown by metal organic vapour phase epitaxy are summarised as deduced from photoluminescence, magneto-photoluminescence,…”
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