Results 1 to 10 of about 62,574 (116)

Excited‐State Dynamics in All‐Polymer Blends with Polymerized Small‐Molecule Acceptors [PDF]

open access: yesAdvanced Science, 2023
Polymerizing small‐molecular acceptors (SMAs) is a promising route to construct high performance polymer acceptors of all‐polymer solar cells (all‐PSCs).
Ziran Liu   +6 more
doaj   +3 more sources

Coupled Excited-State Dynamics in N-Substituted 2-Methoxy-9-Acridones

open access: yesFrontiers in Chemistry, 2019
Fluorophores of the acridone family have been widely employed in many applications, such as DNA sequencing, the detection of biomolecules, and the monitoring of enzymatic systems, as well as being the bases of intracellular sensors and even antitumoral ...
M. Carmen Gonzalez-Garcia   +9 more
doaj   +3 more sources

Excited State Dynamics of Alizarin Red S Nanoparticles in Solution [PDF]

open access: yesMolecules, 2023
Alizarin red S is a sulfonated, water-soluble derivative of alizarin. This work presents femtosecond studies of alizarin red S (ARS) nanoparticles in comparison to ARS in aqueous solution and to alizarin in DMSO.
Pascal Rauthe   +4 more
doaj   +2 more sources

Wavelength dependent excited state dynamics observed in canonical pyrimidine nucleosides

open access: yesJournal of Photochemistry and Photobiology, 2023
Epidemiological evidence indicates that damage to DNA/RNA initialized by ultraviolet (UV) radiation is associated with skin cancer. Wavelength dependence of DNA photodamage was proposed as early as 1990s and demonstrated later on.
Peicong Wu   +3 more
doaj   +1 more source

Ballistic excited state dynamics revealed by polarized fs-XANES [PDF]

open access: yesEPJ Web of Conferences, 2019
Polarized time-resolved X-ray absorption near edge structure (XANES) is used to characterize the sequential ballistic excited state dynamics of two B12 vitamers: cyanocobalamin and adenosylcobalamin.
Sension Roseanne J.   +5 more
doaj   +1 more source

Theory predicts UV/vis-to-IR photonic down conversion mediated by excited state vibrational polaritons

open access: yesNature Communications, 2023
This work proposes a photophysical phenomenon whereby ultraviolet/visible (UV/vis) excitation of a molecule involving a Franck-Condon (FC) active vibration yields infrared (IR) emission by strong coupling to an optical cavity.
Connor K. Terry Weatherly   +3 more
doaj   +1 more source

Photoluminescence of Cis-Polyacetylene Semiconductor Material

open access: yesApplied Sciences, 2022
Photoluminescence (PL) is one of the key experimental characterizations of optoelectronic materials, including conjugated polymers (CPs). In this study, a simplified model of an undoped cis-polyacetylene (cis-PA) oligomer was selected and used to explain
Kamrun N. Keya   +3 more
doaj   +1 more source

Systematic Investigation of the Reliability of the Frozen Nuclei Approximation for Short-Pulse Excitation: The Example of HCCI+

open access: yesFrontiers in Chemistry, 2022
In this work we quantitatively study the reliability of the frozen nuclei approximation for ultrafast dynamics. Specifically we study laser excitation of HCCI+ from its ground state to the first electronically excited state.
Dongming Jia   +2 more
doaj   +1 more source

Excited State Dynamics with Quantum Trajectories

open access: yesCHIMIA, 2012
Nuclear quantum dynamics beyond the Born-Oppenheimer approximation is performed using quantum trajectories. Withintheadiabaticrepresentationoftheelectronicstates, NABDY(NonAdiabaticBohmianDYnamics) is used in combination with DFT and LR-TDDFT to
Basile F. E. Curchod   +2 more
doaj   +1 more source

Ultrafast Excited-State Dynamics in Biological Environments

open access: yesCHIMIA, 2007
We discuss and illustrate by several examples how the ultrafast excited-state dynamics of a chromophore can be altered when changing its environment from a homogenous solution to a biological molecule such as proteins or nucleic acids.
Alexandre Fürstenberg, Eric Vauthey
doaj   +1 more source

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