Spectroscopy and single-molecule emission of a fluorene-terthiophene oligomer

Khalil, G. E.; Adawi, A. M.; Robinson, B.; Cadby, A. J.; Tsoi, W. C.; Kim, J-S.; Charas, A.; Morgado, J.; Lidzey, D. G.

doi:10.1021/jp206368g

Properties of simulated Milky Way-mass galaxies in loose group and field environments (2012)
Journal Article
Few, C. G., Gibson, B. K., Courty, S., Michel-Dansac, L., Brook, C. B., & Stinson, G. S. (2012). Properties of simulated Milky Way-mass galaxies in loose group and field environments. Astronomy and Astrophysics, 547, Article ARTN A63. https://doi.org/10.1051/0004-6361/201219649

Aims. We test the validity of comparing simulated field disk galaxies with the empirical properties of systems situated within environments more comparable to loose groups, including the Milky Way's Local Group. Methods. Cosmological simulations of M... Read More about Properties of simulated Milky Way-mass galaxies in loose group and field environments.

Calibrating an updated smoothed particle hydrodynamics scheme within GCD+ (2012)
Journal Article
Kawata, D., Okamoto, T., Gibson, B. K., Barnes, D. J., & Cen, R. (2013). Calibrating an updated smoothed particle hydrodynamics scheme within GCD+. Monthly notices of the Royal Astronomical Society, 428(3), 1968-1979. https://doi.org/10.1093/mnras/sts161

We adapt a modern scheme of smoothed particle hydrodynamics (SPH) to our treeN-body/SPH galactic chemodynamics code GCD+. The applied scheme includes implementations of the artificial viscosity switch and artificial thermal conductivity proposed by M... Read More about Calibrating an updated smoothed particle hydrodynamics scheme within GCD+.

The role of stellar mass and environment for cluster blue fraction, AGN fraction and star formation indicators from a targeted analysis of Abell 1691 (2012)
Journal Article
Pimbblet, K. A., & Jensen, P. C. (2012). The role of stellar mass and environment for cluster blue fraction, AGN fraction and star formation indicators from a targeted analysis of Abell 1691. Monthly notices of the Royal Astronomical Society, 426(2), 1632-1646. https://doi.org/10.1111/j.1365-2966.2012.21855.x

We present an analysis of the galaxy population of the intermediate X-ray luminosity galaxy cluster, Abell 1691, from Sloan Digital Sky Survey (SDSS) and Galaxy Zoo data to elucidate the relationships between environment and galaxy stellar mass for a... Read More about The role of stellar mass and environment for cluster blue fraction, AGN fraction and star formation indicators from a targeted analysis of Abell 1691.

The NuGrid Research Platform: A Comprehensive Simulation Approach for Nuclear Astrophysics (2012)
Journal Article
Pignatari, M., & Herwig, F. (2012). The NuGrid Research Platform: A Comprehensive Simulation Approach for Nuclear Astrophysics. Nuclear physics news : a publication of NuPECC and EPS-NPB, 22(4), 18-23. https://doi.org/10.1080/10619127.2012.710142

Since the seminal works by BBFH [1] and Cameron et al. [2] a lot of progress in our understanding of the formation of the elements in stars has been made. Increasing fidelity of spectroscopic observations of stellar abundances as well as high-precis... Read More about The NuGrid Research Platform: A Comprehensive Simulation Approach for Nuclear Astrophysics.

Tidal interactions at the edge of the Local Group: New evidence for tidal features in the antlia Dwarf galaxy (2012)
Journal Article
Penny, S. J., Pimbblet, K. A., Conselice, C. J., Brown, M. J., Grützbauch, R., & Floyd, D. J. (2012). Tidal interactions at the edge of the Local Group: New evidence for tidal features in the antlia Dwarf galaxy. Astrophysical journal. Letters, 758(2), Article L32. https://doi.org/10.1088/2041-8205/758/2/L32

Using deep B-band imaging down to μ B = 26 mag arcsec -2 , we present evidence for tidal tails in the Antlia Dwarf galaxy, one of the most distant members of the Local Group. This elongation is in the direction of Antlia's nearest neighbor, the Magel... Read More about Tidal interactions at the edge of the Local Group: New evidence for tidal features in the antlia Dwarf galaxy.

Negative differential resistance associated with hot phonons (2012)
Journal Article
Dyson, A., & Ridley, B. K. (2012). Negative differential resistance associated with hot phonons. Journal of applied physics, 112(6), 063707. https://doi.org/10.1063/1.4754012

We predict the existence of a hot-phonon negative differential resistance (NDR) in GaN. We show that this is a consequence of a wave-vector dependence of lifetime caused by the effect of coupled plasmon-phonons. Anti-screened long-wavelength modes ha... Read More about Negative differential resistance associated with hot phonons.

Low-temperature plasmonics of metallic nanostructures (2012)
Journal Article
Bouillard, J. S. G., Dickson, W., O’Connor, D. P., Wurtz, G. A., & Zayats, A. V. (2012). Low-temperature plasmonics of metallic nanostructures. Nano Letters, 12(3), 1561-1565. https://doi.org/10.1021/nl204420s

The requirements for spatial and temporal manipulation of electromagnetic fields on the nanoscale have recently resulted in an ever-increasing use of plasmonics for achieving various functionalities with superior performance to those available from c... Read More about Low-temperature plasmonics of metallic nanostructures.

Ultrafast heating as a sufficient stimulus for magnetization reversal in a ferrimagnet (2012)
Journal Article
Ostler, T. A., Barker, J., Evans, R. F., Chantrell, R. W., Atxitia, U., Chubykalo-Fesenko, O., …Kimel, A. V. (2012). Ultrafast heating as a sufficient stimulus for magnetization reversal in a ferrimagnet. Nature communications, 3, Article 666. https://doi.org/10.1038/ncomms1666

The question of how, and how fast, magnetization can be reversed is a topic of great practical interest for the manipulation and storage of magnetic information. It is generally accepted that magnetization reversal should be driven by a stimulus repr... Read More about Ultrafast heating as a sufficient stimulus for magnetization reversal in a ferrimagnet.

Effect of particulate contamination on adhesive ability and repellence in two species of ant (Hymenoptera; Formicidae) (2012)
Journal Article
Anyon, M. J., Orchard, M. J., Buzza, D. M. A., Humphries, S., & Kohonen, M. M. (2012). Effect of particulate contamination on adhesive ability and repellence in two species of ant (Hymenoptera; Formicidae). The journal of experimental biology, 215(4), 605-616. https://doi.org/10.1242/jeb.063578

Tarsal adhesive pads are crucial for the ability of insects to traverse their natural environment. Previous studies have demonstrated that for both hairy and smooth adhesive pads, significant reduction in adhesion can occur because of contamination o... Read More about Effect of particulate contamination on adhesive ability and repellence in two species of ant (Hymenoptera; Formicidae).

An avatar-based help system for web-portals (2011)
Journal Article
Lang, H., Mosch, C., Boegel, B., Minker, W., & Benoit, D. M. (2011). An avatar-based help system for web-portals. Lecture notes in computer science, 6762(PART 2), 537-546. https://doi.org/10.1007/978-3-642-21605-3_59

In this paper we present an avatar-based help system for web-portals that should provide various kinds of user assistance. Along with helping users on individual elements of a web page, it is also capable to offer step-by-step guidance supporting use... Read More about An avatar-based help system for web-portals.

Precise chemical, electronic, and magnetic structure of binuclear complexes studied by means of X-ray spectroscopies and theoretical methods (2011)
Journal Article
Kuepper, K., Benoit, D. M., Wiedwald, U., Mögele, F., Meyering, A., Neumann, M., Kappler, J.-P., Joly, L., Weidle, S., Rieger, B., & Ziemann, P. (2011). Precise chemical, electronic, and magnetic structure of binuclear complexes studied by means of X-ray spectroscopies and theoretical methods. Journal of physical chemistry. C, 115(50), 25030-25039. https://doi.org/10.1021/jp2069804

We investigate two planar complexes MnNi and CoNi (see Scheme 1) by X-ray photoelec- tron spectroscopy (XPS) and ultralow-temperature X-ray magnetic circular dichroism (XMCD). In this way the valence states as well as the presence of uncompensated ma... Read More about Precise chemical, electronic, and magnetic structure of binuclear complexes studied by means of X-ray spectroscopies and theoretical methods.

Optically-programmable nonlinear photonic component for dielectric-loaded plasmonic circuitry (2011)
Journal Article
Krasavin, A. V., Randhawa, S., Bouillard, J. S., Renger, J., Quidant, R., & Zayats, A. V. (2011). Optically-programmable nonlinear photonic component for dielectric-loaded plasmonic circuitry. Optics express, 19(25), 25222-25229. https://doi.org/10.1364/OE.19.025222

We demonstrate both experimentally and numerically a compact and efficient, optically tuneable plasmonic component utilizing a surface plasmon polariton ring resonator with nonlinearity based on trans-cis isomerization in a polymer material. We obser... Read More about Optically-programmable nonlinear photonic component for dielectric-loaded plasmonic circuitry.

Temperature dependence of the upper-branch polariton population in an organic semiconductor microcavity (2011)
Journal Article
Coles, D. M., Michetti, P., Clark, C., Adawi, A. M., & Lidzey, D. G. (2011). Temperature dependence of the upper-branch polariton population in an organic semiconductor microcavity. Physical review B: Condensed matter and materials physics, 84(20), 205214-1 - 205214-8. https://doi.org/10.1103/PhysRevB.84.205214

We explore the distribution of polaritons along the upper polariton branch of a strongly coupled organic-semiconductor microcavity as a function of temperature following nonresonant optical excitation. Measurements of polariton emission from a high-f... Read More about Temperature dependence of the upper-branch polariton population in an organic semiconductor microcavity.

Assessing spin-component-scaled second-order Møller-plesset theory using anharmonic frequencies (2011)
Journal Article
Domin, D., & Benoit, D. M. (2011). Assessing spin-component-scaled second-order Møller-plesset theory using anharmonic frequencies. Chemphyschem, 12(17), 3383-3391. https://doi.org/10.1002/cphc.201100499

Four common parametrisations of spin-component-scaled second-order Møller–Plesset (MP2) theory are benchmarked by calculating the anharmonic vibrational frequencies of a test suite consisting of eighteen diatomic and five small molecules. Of the four... Read More about Assessing spin-component-scaled second-order Møller-plesset theory using anharmonic frequencies.

Inclusion, place and disadvantage in the English education system (2011)
Book Chapter
Dyson, A., Kerr, K., & Jones, L. (2011). Inclusion, place and disadvantage in the English education system. In Inclusive education: examining equity on five continents (69 - 88). Harvard Education Press

Hybrid FIB milling strategy for the fabrication of plasmonic nanostructures on semiconductor substrates (2011)
Journal Article
Einsle, J. F., Bouillard, J. S., Dickson, W., & Zayats, A. V. (2011). Hybrid FIB milling strategy for the fabrication of plasmonic nanostructures on semiconductor substrates. Nanoscale Research Letters, 6(1), Article 572. https://doi.org/10.1186/1556-276X-6-572

The optical properties of plasmonic semiconductor devices fabricated by focused ion beam (FIB) milling deteriorate because of the amorphisation of the semiconductor substrate. This study explores the effects of combining traditional 30 kV FIB milling... Read More about Hybrid FIB milling strategy for the fabrication of plasmonic nanostructures on semiconductor substrates.

Hierarchical formation of bulgeless galaxies - II. Redistribution of angular momentum via galactic fountains: Bulgeless discs II (2011)
Journal Article
Brook, C. B., Stinson, G., Gibson, B. K., Roškar, R., Wadsley, J., & Quinn, T. (2012). Hierarchical formation of bulgeless galaxies - II. Redistribution of angular momentum via galactic fountains: Bulgeless discs II. Monthly notices of the Royal Astronomical Society, 419(1), 771-779. https://doi.org/10.1111/j.1365-2966.2011.19740.x

Within a fully cosmological hydrodynamical simulation, we form a galaxy which rotates at 140 kms-1, and it is characterized by two loose spiral arms and a bar, indicative of a Hubble-type SBc/d galaxy. We show that our simulated galaxy has no classic... Read More about Hierarchical formation of bulgeless galaxies - II. Redistribution of angular momentum via galactic fountains: Bulgeless discs II.

Momentum relaxation due to polar optical phonons in AlGaN/GaN heterostructures (2011)
Journal Article
Zhang, J.-Z., Zhang, J.-Z., Dyson, A., & Ridley, B. K. (2011). Momentum relaxation due to polar optical phonons in AlGaN/GaN heterostructures. Physical review B: Condensed matter and materials physics, 84(15), Article ARTN 155310. https://doi.org/10.1103/PhysRevB.84.155310

Using the dielectric continuum (DC) model, momentum relaxation rates are calculated for electrons confined in quasi-two-dimensional (quasi-2D) channels of AlGaN/GaN heterostructures. Particular attention is paid to the effects of half-space and inter... Read More about Momentum relaxation due to polar optical phonons in AlGaN/GaN heterostructures.

The structure and melting transition of two-dimensional colloidal alloys (2011)
Journal Article
Law, A. D., Horozov, T. S., & Buzza, D. M. A. (2011). The structure and melting transition of two-dimensional colloidal alloys. Soft matter, 7(19), 8923-8931. https://doi.org/10.1039/c1sm05446e

We study theoretically the structure and melting transition of two-dimensional (2D) binary mixtures of colloidal particles interacting via a dipole-dipole potential. Using a lattice sum method, we find that at zero temperature (T = 0) the system form... Read More about The structure and melting transition of two-dimensional colloidal alloys.

Spectroscopy and single-molecule emission of a fluorene-terthiophene oligomer (2011)
Journal Article
Khalil, G. E., Adawi, A. M., Robinson, B., Cadby, A. J., Tsoi, W. C., Kim, J.-S., Charas, A., Morgado, J., & Lidzey, D. G. (2011). Spectroscopy and single-molecule emission of a fluorene-terthiophene oligomer. Journal of Physical Chemistry B, 115(42), 12028-12035. https://doi.org/10.1021/jp206368g

We study the thiophene-based oligomer poly[2,7-(9,9-bis(2′-ethylhexyl)fluorene)-alt-2,5-terthiophene] (PF3T) in solution and when dispersed at low concentration into a polynorbornene matrix. We find that at high concentration in solution the 0–0 elec... Read More about Spectroscopy and single-molecule emission of a fluorene-terthiophene oligomer.

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