Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"conduction band electrons"”.
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Electrical transport properties of barium titanate-based capacitor ceramics
Electrical conduction mechanisms in BaTiO₃-based ferroelectric capacitor ceramics with an emphasis on the X7R type were studied. Dominant charge carriers in this material were identified as conduction band electrons below a temperature of 850°C. This was substantiated by the following results: …
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Magnesium nanoplasmonics: synthesis, characterisation, and applications
… In metal nanoparticles, resonant oscillations of conduction-band electrons driven by light lead to localised surface plasmon resonances (LSPRs). Au and Ag are widely studied metals capable of sustaining LSPRs, but there is growing interest in earth-abundant alternatives that offer potentially …
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Pulsed laser induced breakdown in solid state materials and air
… At long pulse durations (> 1ns), relaxation of conduction band electrons during the pulse is responsible for the increased LIDT compared to scaling derived from sub-picosecond pulses. Linear polarization produces lower LIDT than circular polarization for MPA order of m=3 and 4 with femtosecond …
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Complex Plasmonic Nanostructures: Symmetry Breaking and Coupled Systems
… support resonant oscillations of their conduction band electrons called localized surface plasmon resonances. Plasmons couple efficiently to light and have enabled a new class of technology for the manipulation of light at the nanoscale. Nanostructures that support plasmon resonances …
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The application of colloidal photocatalysis in actinide photoredox chemistry
… in these reactions is the absorption of ultra-band gap energy photons by the particles, which generates electron-hole (eB,htB) pairs within the semiconductor lattice. The valence band holes/conduction band electrons may react with oxidisable/reducible species in solution or particle lattice …
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Plasmonic Nanostructures: Optical Nanocircuits, Tunable Charge Transfer Plasmons, and Properties of Fano Resonant Nanoclusters
… surface plasmons, the collective oscillation of conduction band electrons. Surface plasmons can focus electromagnetic field into a subwavelength dimension and sense the change of the local dielectric environment, promising properties for surface enhanced spectroscopy and sensing applications. New …
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Carrier mobility of downscaled amorphous semiconductors exemplified by hydrogenated amorphous silicon
… The theory focusses on the universal band tails found in the density of states (DOS) of amorphous semiconductors, which affects charge transport. Using hydrogenated amorphous silicon (a-Si:H) as an example, excess valence band and conduction band electrons stemming from the distortion …
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Novel reactions on halogen-terminated SI(100)
… pathway that is initiated by the capture of electrons that have been excited by phonon processes into Si-halogen antibonding states. This configuration is on a repulsive potential energy surface, and it is sufficiently long-lived that desorption can occur, constituting phononactivated …
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Infrared Spectroscopic Measurement of Titanium Dioxide Nanoparticle Shallow Trap State Energies
… of electron energies between the valence and conduction bands of titanium dioxide, crystal lattice irregularities lead to the formation of electron trapping sites. These sites are known as shallow trap states, where "shallow" refers to the close energy proximity of those features to the bottom …