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Now showing items 1371-1380 of 2111
Low-frequency behavior of off-diagonal matrix elements in the integrable XXZ chain and in a locally perturbed quantum-chaotic XXZ chain
(2020)
We study the matrix elements of local operators in the eigenstates of the integrable XXZ chain and of the quantum-chaotic model obtained by locally perturbing the XXZ chain with a magnetic impurity. We show that, at ...
Inkjet Printed Energy Storage Systems for Electrochemical Testing and In-Situ TEM Analysis
(Trinity College Dublin. School of Physics. Discipline of Physics, 2019)
Understanding of how materials store charge in supercapacitor and battery systems is fundamental to improving these classes of energy storage devices. While materials can be analysed and examined before they are incorporated ...
Unlocking the Origin of Compositional Fluctuations in InGaN Light Emitting Diodes
(2021)
The accurate determination of compositional fluctuations is pivotal in understanding their role in the reduction of efficiency in high indium content InxGa1–xN light emitting diodes (LEDs), the origin of which is still ...
Liquid Exfoliated SnP<inf>3</inf> Nanosheets for Very High Areal Capacity Lithium-Ion Batteries
(2021)
ncreasing the energy density of lithium‐ion batteries requires the discovery of new electrode materials capable of achieving very high areal capacity. Here, liquid phase exfoliation is used to produce nanosheets of SnP3, ...
Far-ultraviolet observations of NGC 4151 during the ORFEUS-SPAS II mission
(American Astronomical Society, 1998)
We observed the Seyfert 1 galaxy NGC 4151 on 11 occasions at 1-2 day intervals using the Berkeley spectrometer during the ORFEUS-SPAS II mission in 1996 November. The mean spectrum covers 912-1220 A at ~0.3 A resolution ...
Factors controlling the dispersion of single walled carbon nanotubes and hexabenzocoronene in liquid media
(Trinity College (Dublin, Ireland). School of Physics, 2012)
In this thesis, some of the primary factors controlling liquid phase dispersion of
sp2-hybridised carbon nanostructures (namely single walled carbon nanotubes
(SWNTs) and hexa-peri-hexabenzocoronene (HBC)) were investigated.
Experimental investigation of polarisation rotation in semiconductor optical amplifiers
(IEEE, 2004)
An experimental study of polarisation rotation in a semiconductor optical amplifier is presented. Two techniques are used to investigate the gain and birefringence along the two eigenmodes of the component waveguide, with ...
Exchange coupling in CaMnO3 and LaMnO3: Configuration interaction and the coupling mechanism
(2002)
The equilibrium structure and exchange constants of CaMnO3 and LaMnO3 have been investigated using total-energy unrestricted Hartree-Fock (UHF) and localized orbital configuration interaction (CI) calculations on bulk ...
High-Concentration Solvent Exfoliation of Graphene.
(Wiley-Blackwell, 2010)
We demonstrate a method to prepare graphene dispersions at high
concentrations, up to 1.2 mg/ml, with yields of up to 4wt% monolayers. This
process relies on low-power sonication for long times, up to 460 hours. TEM
shows ...
Charge and spin transport through organic semiconductors
(Trinity College (Dublin, Ireland). School of Physics, 2013)
Over the past decade a great body of research has been devoted to the field of organic spintronics. This is primarily because of its potential to open new ways to cheap, low' weight, mechanically flexible, chemically inert ...