Browsing by Subject "Photoluminescence"
Now showing items 1-11 of 11
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Confined modes in photonic microtube structures.
(SPIE, 2007)We present the results of studies on small photonic microtube structures of less than 10 microns diameter. A new technique based on vacuum assisted filtration is used to produce the microtube resonantors. Whispering gallery ... -
Enhanced coupling of electronic and photonic states in a microcavity-quantum dot system
(2005)Spherical microcavities consisting of a dielectric material show unique optical characteristics as resonators in combination with semiconductor nanoparticles. A high quality factor results in a very narrow bandwidth of the ... -
Enhancing the photoluminescence of surface anchored metal?organic frameworks: mixed linkers and efficient acceptors
(2018)We present two approaches to enhance the photoluminescence quantum yield (PLQY) of surface-anchored metal–organic frameworks (SURMOFs). In the first approach we fabricate SURMOFs from a mix of an emissive linker with an ... -
Helium ion microscope generated nitrogen-vacancy centres in type Ib diamond
(2014)We report on position and density control of nitrogen-vacancy (NV) centres created in type Ib diamond using localised exposure from a helium ion microscope and subsequent annealing. Spatial control to <380 nm has been ... -
Oxygen Electromigration and Energy Band Reconstruction Induced by Electrolyte Field Effect at Oxide Interfaces
(2018)Electrolyte gating is a powerful means for tuning the carrier density and exploring the resultant modulation of novel properties on solid surfaces. However, the mechanism, especially its effect on the oxygen migration and ... -
Room-temperature ultraviolet luminescence from g-CuCl on silicon
(2005)We have probed the luminescence properties of a wide-band-gap, direct band-gap optoelectronic material, grown on closely lattice-matched silicon substrates, namely, γ-CuCl on Si. This material system is compatible with ... -
Room-temperature ultraviolet luminescence from γ-CuCl grown on near lattice-matched silicon
(2005)We have probed the luminescence properties of a wide-band-gap, direct band-gap optoelectronic material, grown on closely lattice-matched silicon substrates, namely, γ-CuCl on Si. This material system is compatible with ... -
Size Selection And Monolayer Enrichement In Liquid Exfoliated Tungsten Disulphide Dispersions.
(Trinity College Dublin. School of Physics. Discipline of Physics, 2018)Since the the discovery of graphene in 2004, the scientific environment turned its great interest towards new type of nanomaterials, commonly called two dimensional (2D) layered nanomaterials. Over last 15 years, they ... -
Spectroscopic and Crystallographic Evaluation of Ruthenium(II) Complexes Bearing Phenanthroline-Naphthalimide Ligands
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2023)Spectroscopic and Crystallographic Evaluation of Ruthenium(II) Complexes Bearing Phenanthroline-Naphthalimide Ligands Deirdre Ann McAdams This Thesis predominantly focusses on the design, synthesis, and characterisation ... -
Temperature dependent photoluminescence of nanocrystalline γ-CuCl hybrid films
(2014)Organic–inorganic hybrid films combine the basic properties of organic and inorganic materials and offer special advantages that enhance optical, thermal and mechanical properties. We have studied the temperature dependent ... -
The use of wide-bandgap CuCl on silicon for ultra-violet photonics
(2005)γ-CuCl is a wide-bandgap (Eg = 3.395eV), direct bandgap, semiconductor material with a cubic zincblende lattice structure. Its lattice constant, aCuCl = 0.541 nm, means that the lattice mismatch to Si (aSi = 0.543 nm) is ...