Transient absorption
Comparative study of polychromatic transient absorption measurements for two generations of pyrene terrylene dendrimers
... A kinetic analysis of the transient absorption intensities in function of delay time for different wavelengths reveals an additional picosecond relaxation process. This process can be seen in the inset of ...
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Ultrafast transient absorption spectroscopy of the sunscreen constituent ethylhexyl triazone
... reported transient absorption spectra (TAS) measurements, 1 mM solutions of EHT in either dioxane (EHT − dioxane) or methanol (EHT − methanol) were recirculated via a fl ow- through cell between two CaF 2 ...
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Ultrafast Transient Absorption Spectroscopy of Valley Carrier Dynamics in Atomically Thin Transition Metal Dichalcogenides.
... All the valley-contrasting ultrafast transient absorption measurements are conducted in 74K. As mentioned in instrumentation chapter, we use the output of optical parametric amplifier as our pump beam. The ...
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Transient absorption studies of biologically relevant systems : photostability and photoactivation
... ultrafast transient absorption studies of related Ru(II) complexes, a more quantitative insight into the timescales for 3 MLCT state decay (and vibrational cooling), GSB recovery, decay of the PCI species ...
151
Hintermayr, Verena (2018): Tuning the carrier dynamics in light-emitting lead halide perovskite nanoplatelets. Dissertation, LMU München: Fakultät für Physik
... In the last chapter of this thesis the carrier dynamics in 2D and 3D MAPI nanoplatelets are analyzed. The observed dependence of the state filling on the charge carrier density and the bimolecular recombination in 3D ...
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Ultrafast Optical Studies of Amplified Spontaneous Emission in Hybrid Organic-Inorganic Perovskites.
... ultrafast transient absorption and time-domain terahertz spec- troscopy to study carrier dynamics in MAPbI 3 in the low temperature (TP inclusion) ...
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5827.pdf
... Transient absorption microscopy experiments from our group shows that electron- hole recombination in the tips of these structures occurs primarily through band-edge states, whereas in the interior ...
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Detection of a strong transient blue shifted absorption component in the beta Pictoris disk
... the transient components are actually saturated, but do not reach zero intensity because they only obscure part of the star, the column densities given in Table 1 will be lower ...the transient ...
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Ultrafast Trap State-Mediated Electron Transfer for Quantum Dot Redox Sensing
... in absorption between 435 and 720 nm. Ultrafast broadband transient absorption measurements were carried out at randomly ordered time points in a Helios (Ultrafast Systems LLC) spectrometer (-20 ps ...
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Reaction of porphyrin based surface anchored metal?organic frameworks caused by prolonged illumination
... photoluminescence, transient absorption, and time-resolved electron paramagnetic reso- nance spectroscopy to examine the effects of prolonged illumination on a palladium-porphyrin based SURMOF thin ...
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Simulation of photo-excited adenine in water with a hierarchy of equations of motion approach
... after absorption of ...time-resolved transient absorption (TA), fluorescence and photoelectron spectroscopies to study the dynamics of excited electrons in nucleobases 11–13 and larger ...
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Gabriel_unc_0153D_15757.pdf
... The transient absorption microscope is illustrated in Figure 4.1. The 850 nm output of a mode-locked Ti:Sapphire oscillator is split by a 10/90 beam splitter. The higher power beam is frequency doubled to ...
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Ultrafast Carrier Relaxation in InN Nanowires Grown by Reactive Vapor Transport
... transport. Transient differential absorption measurements have been employed to investigate the relaxation dynamics of photogenerated carriers near and above the optical absorption edge of InN NWs ...
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Electron Transfer in Flavodoxin-based Redox Maquettes
... form transient complexes productive for electron transfer, despite not being physiological redox partners ...by transient absorption spectroscopy to give information on the sequence and rates of ...
202
Advanced Physical Techniques in Inorganic Chemistry: Probing Small Molecule Activation
... Nanosecond transient absorption measurements were made with the pump light provided by the third harmonic (355 nm) of a Quanta-Ray Nd:YAG laser (Spectra-Physics) running at 10 ...
275
Probing a chemical compass : novel variants of low frequency reaction yield detected magnetic resonance
... Time-profiles in RYDMR experiments contained significant RF noise due to radiation from the high power RF circuits. For sufficiently short-lived radical pairs this can be filtered from the time-profile using a boxcar ...
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Monitoring Charge Exchange in P3HT Nanotube Composites Using Optical and Electrical Characterisation
... probing absorption from the HOMO to states at the bottom of the LUMO in ...in absorption by the ...increasing absorption by the monitored states toward pre-pump ...the transient ...
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Morseth_unc_0153D_16600.pdf
... Transient absorption measurements were performed using a home-built transient absorption spectrometer. The spectrometer is based on a commercially available ultrafast laser system (Clark MXR ...
210
Ultrafast vibrational spectroscopic Studies on the photoionization of the α Tocopherol analogue Trolox C
... The initial events after photoexcitation and photoionization of α-tocopherol (vitamin E) and the analogue Trolox C have been studied by femtosecond stimulated Raman spectroscopy, transient absorption ...
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Ultrafast hole carrier relaxation dynamics in p type CuO nanowires
... Ultrafast transient absorption measurements reveal an initial pulse width-limited negative change in the induced absorption for all probing wavelengths associated with the occupation of ...
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