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Now showing items 1851-1860 of 2111
Dispersion and purification of Mo6S3I6 nanowires in organic solvents
(American Institute of Physics, 2007)
Sedimentation measurements have been performed on dispersions of Mo6S3I6 nanowires in a range
of common solvents. By far the best solvents were N,N-dimethylformamide DMF and acetone.
Stable dispersions of purified ...
Electric discharges in laser produced plasmas
(Trinity College (Dublin, Ireland). School of Physics, 2010)
This thesis describes the results of an investigation of the effects of a medium voltage (0.1-1 kV), low-inductance discharge in a laser produced plasma. Discharging was done in vacuum using coaxial discharge cells of ...
Ferromagnetic nanoparticles with strong surface anisotropy: Spin structures and magnetisation processes
(American Physcial Society, 2008)
Monte Carlo simulations are used to investigate the effect of surface anisotropy on the spin configurations and hysteresis loops of ferromagnetic nanoparticles. Spherical particles of radius ?a are composed of N atoms ...
An experimental investigation of metal phthalocyanine-germanium interfaces
(Trinity College (Dublin, Ireland). School of Physics, 2009)
Hybrid organic-inorganic devices present interesting possibilities for the growing field of organic semiconductors. The interface within these devices plays an im portant role in their performance, and as they decrease in ...
Continuous Wave NMR Imaging in the Solid State
(2005)
A novel NMR technique for imaging materials exhibiting extremely short T2 relaxation times is described and some examples of its application to materials of scientific and industrial interest are presented. The technique ...
Electron paramagnetic resonance and photoluminescence study of Er-impurity complexes in Si
(American Physical Society, 1999)
Electron paramagnetic resonance (EPR) and photoluminescence (PL) spectroscopy have been used to examine the structure and optical properties of erbium-impurity complexes formed in float-zone Si by multiple-energy implants ...
Vortex states in soft magnets in two and three dimensions
(2010)
The magnetization curves of arrays of near-spherical soft ferromagnetic particles are compared with those of quasi-two-dimensional dots with similar radius prepared by a rapid e-beam lithographic technique. Curves for the ...
The influence of drinking water constituents on the level of microplastic release from plastic kettles
(2022)
Microplastic (MP) release from household plastic products has become a global concern due to the high recorded levels of microplastic and the direct risk of human exposure. However, the most widely used MP measurement ...
Investigation into semiconductor microcavity light emitting strucutres, and the assessment of InAs/GaAs quantum dots as sources for etched microstructures
(Trinity College (Dublin, Ireland). School of Physics, 2002)
The spectral, spatial, and temporal characteristics of the spontaneous light emission process are dependent on the optical environment with which the emitter interacts. Cavity structures with dimensions of the order of the ...
Quantum control of excitons for reversible heat transfer
(2019)
Lasers, photovoltaics, and thermoelectrically-pumped light emitting diodes are thermodynamic machines which use excitons (electron-hole pairs) as the working medium. The heat transfers in such devices are highly irreversible, ...