Browsing by Subject "photoluminescence"
Now showing items 1-5 of 5
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Defect annealing in a II-VI laser diode structure under intense optical excitation
(1998)Defect annealing under intense pulsed optical excitation has been observed in a II?VI laser diode structure at room temperature. More than one order of magnitude increase in photoluminescence intensity has been obtained ... -
Engineering the exciton linewidth in II-VI quantum well structures
(SPIE, 1994)The excitonic transition in Il-VI quantum well materials has recently been used as the basis for optical modulators and also as the lasing transition at low temperatures. The central aspect in the use of the exciton ... -
Polarization anisotropy of photoluminescence from triphenylamine-based molecular single crystal
(2013)We present an experimental study of the polarization of the photoluminescence (PL) emission from a (Z)-3-(4-(diphenyl- amino)phenyl)-2-(pyridin-2-yl)-acrylonitrile (DPPyACN) single organic crystal. Our measurements show ... -
Synthesis and spectroscopic studies of chiral CdSequantum dots
(2010)Using microwave irradiation, water soluble, optically active, penicillamine (Pen) capped CdSenanocrystals with broad spectral distribution (430?780 nm) of photoluminescence have been produced and studied by a range of ... -
Ureasil Architectures for Organic-Inorganic Photoactive Hybrid Materials
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2018)Ureasils are Class II organic-inorganic hybrids consisting of poly(oxyalkylene) chains covalently linked to a siliceous network via urea bridges. Ureasil monoliths are photoluminescent, waveguiding and photo- and thermally ...