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Time-Resolved Infrared (TRIR) Studies of Oxycarbonylnitrenes
The Journal of Organic Chemistry, 2016N-Ethyloxycarbonyl-S,S-dibenzothiphene sulfilimine and N-t-butyloxycarbonyl-S,S-dibenzothiphene sulfilimine have been utilized as precursors to ethoxycarbonylnitrene and t-butyloxycarbonylnitrene. B3LYP/6-31G(d) calculations predict triplet ground states for both oxycarbonylnitrenes, albeit by small margins.
Tyler A, Chavez +2 more
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Stimulated Emission in ZnO Nanostructures: A Time-Resolved Study
The Journal of Physical Chemistry B, 2005Stimulated emission was studied using time-integrated and time-resolved photoluminescence in ZnO comb, tetrapod, and rod nanostructures. All the measurements were performed on ensembles of the nanostructures. The nanostructures were fabricated by vapor deposition (combs, tetrapods) and hydrothermal methods (rods). While stimulated emission was detected
Phillips, DL +4 more
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Stain Effects Studied by Time-Resolved Infrared Imaging
Analytical Chemistry, 2008Pattern formation in evaporating colloidal droplets is an important phenomenon that is commonly observed in several solute-solvent systems; this is also an emerging technique for obtaining fine patterning through controlled conditions of drying. After evaporation of the solvent a ring-like pattern remains on the solid substrate under the condition of ...
Innocenzi, P. +4 more
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Time-resolved studies of biexcitons in GaAs
Solid State Communications, 1989Abstract Using time-window photoluminescence spectroscopy we have unambigously observed a transition corresponding to biexcitons in GaAs. The biexciton luminescence line was found to have a superlinear dependence of luminescence intensity vs. excitation density as well as a shorter lifetime than the polariton.
T.W. Steiner +5 more
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Time-resolved photoluminescence study of InSe
Solid State Communications, 1985Time-resolved photoluminescence spectra of InSe at superfluid He temperatures show that one broad luminescence feature centred at 1315meV is due to donor-acceptor pair recombination whereas other, lower energy broad bands are not. The sharp lines around 1333meV were identified as bound exciton luminescence from their transient behaviour.
J.L. Brebner, T. Steiner, M.L.W. Thewalt
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Time Resolved Studies Of Adsorbed Species
SPIE Proceedings, 1985A time-resolved Fourier transform IR study of ethyne adsorbed on ZnNaA zeolite yields results very different from those reported for related systems. Initially two species (A and B) are formed by the interaction of C2H2 with the cations. Whereas species A (π-bonded C2H2) was found to be removed immediately on evacuation, species B (probably Zn ...
J. Howard, J. M. Nicol
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Time-resolved studies of excitonic polaritons
Journal of Luminescence, 1991Abstract The kinetic properties of the secondary emission of excitonic polaritons are reviewed, based on experiments on molecular (anthracene) and semiconductor (CdS, GaAs, InP, etc.) crystals at low temperatures. First, coherent propagation effects are considered, including group velocity renormalization, the appearance of optical precursors and ...
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Time-Resolved Studies of Energy Transfer
1984The dynamics involved in the transfer of excitation energy among impurity ions in solids is directly reflected in the time dependence of the energy transfer rate. In this lecture experimental techniques are discussed which allow the determination of this time dependence.
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Laue crystallography: time-resolved studies
2006The term ‘Laue diffraction’ describes the process of X-ray scattering that occurs when a stationary crystal is illuminated by a polychromatic beam of X-rays. Recent developments in Laue diffraction have depended on three main advances: the use of very intense polychromatic synchrotron sources; the realization that the so-called energy-overlap or ...
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