Results 21 to 30 of about 147,412 (306)

Ultrafast photophysical studies of sulfonated polyaniline in aqueous medium by femtosecond transient absorption spectroscopy

, 2022
In our previous work (Khatun et al., J. Phys. Chem. A 122 (2018) 7089-7098), synthesis and characterization of sulfonated polyaniline (SPANI) were discussed.
Rijia, Khatun, Subrata, Sinha, Koushik, Majhi   +2 more
core   +1 more source

Small Polaron Hopping in Fe:LiNbO3 as a Function of Temperature and Composition

Crystals, 2018
Small-polaron hopping involved in charge transport in Fe-doped congruent lithium niobate is investigated as a function of temperature and composition by means of light-induced transient absorption spectroscopy.
Laura Vittadello, Marco Bazzan, Simon Messerschmidt, Mirco Imlau   +3 more
doaj   +1 more source

Irradiation of ZnPPIX Complexed with Bovine β-Lactoglobulin Causes Chemical Modifications and Conformational Changes of the Protein

Physchem, 2023
Photosensitization of proteins mediated by chromophores is a mechanism commonly employed by nature and mimicked in a broad array of laboratory research and applications.
Abdullah Albalawi, Omar Castillo, Michael L. Denton, John Michael Rickman, Gary D. Noojin, Lorenzo Brancaleon   +5 more
doaj   +1 more source

Dynamic Microscopy Study of Ultrafast Charge Transfer in a Hybrid P3HT/Hyperbranched CdSe Nanoparticle Blend for Photovoltaics [PDF]

, 2012
We present a spectroscopic investigation on a new hyperbranched cadmium selenide nanocrystals (CdSe NC)/poly(3-hexylthiophene) (P3HT) blend, a potentially good active component in hybrid photovoltaics. Combined ultrafast transient absorption spectroscopy
Polli, Dario, F. Tassone, MarianoBiasiucci, Giuseppe Gigli, M. Biasiucci, G. Gigli, Mariano Biasiucci, Francesco Scotognella, Lanzani, Guglielmo, Francesco Tassone, Gigli, Giuseppe, Guglielmo Lanzani, Dario Polli, Biasucci, Mariano, Mastria, Rosanna, R. Mastria, Giulia Grancini, Tassone, Francesco, Grancini, Giulia, Scotognella, Francesco, Rosanna Mastria   +20 more
core   +1 more source

First-principles simulation of excitation energy transfer and transient absorption spectroscopy in the CP29 light-harvesting complex

, 2023
The dynamics of delocalized excitons in light-harvesting complexes (LHCs) can be investigated using different experimental techniques, and transient absorption spectroscopy (TA) is one of the most valuable methods for this purpose.
Vladislav, Sláma, Piermarco, Saraceno, Lorenzo, Cupellini   +2 more
core   +1 more source

Ultrafast Electronic Deactivation Dynamics of Xanthosine Monophosphate

Molecules, 2017
Ultrafast energy dissipation is a crucial factor for the photostability of DNA and RNA, but even some of the key electronic deactivation pathways in monomeric nucleic acid building stones are still controversial.
Katharina Röttger, Rebecca Stellmacher, Mayra C. Stuhldreier, Friedrich Temps   +3 more
doaj   +1 more source

Tailoring photoluminescence of WS2-microcavity coupling devices in broad visible range

Nanophotonics, 2023
Most of the previous TMDC-photon coupling devices were mainly based on A exciton due to its high oscillator strength and large exciton binding energy. Less effort has been focused on the modulation of the emission of B exciton and Rydberg states in TMDCs,
Zhao Le-Yi, Wang Hai, Liu Tian-Yu, Li Fang-Fei, Zhou Qiang, Wang Hai-Yu   +5 more
doaj   +1 more source

Photoswitching of arylazopyrazoles upon S1 (nπ*) excitation studied by transient absorption and ab-initio molecular dynamics

, 2023
Arylazopyrazoles (AAPs) are an important class of molecular photoswitches with high photostationary states (PSS) and long thermal lifetimes. The ultrafast photoisomerization of four water-soluble arylazopyrazoles, all of them featuring an ortho ...
Katharina, Ziegler, Vikas, Kumar, Till , Reichenauer, Nikos , Doltsinis, Marcus , Böckmann, Bart Jan , Ravoo, Sebastian, Schlücker   +6 more
core   +1 more source

Light-Induced Effects in Amorphous Chalcogenide Glasses: Femtoseconds to Seconds

Physics, 2021
Amorphous chalcogenide glasses are intrinsically metastable, highly photosensitive, and therefore exhibit numerous light-induced effects upon bandgap and sub-bandgap illumination.
Pritam Khan, K. V. Adarsh
doaj   +1 more source

Photophysical Studies of Poly(3,4-Ethylenedioxythiophene/Cucurbit[7]uril) Polypseudorotaxane and Polyrotaxane by Transient Absorption and Time-Resolved Fluorescence Spectroscopy

Engineering Proceedings, 2022
The UV-Vis absorption, fluorescence, and phosphorescence spectra of poly(3,4-ethylenedioxythiophene/cucurbit[7]uril), polypseudorotaxane (1), and polyrotaxane (2) in water and acetonitrile solutions were investigated. To achieve a deeper insight into the
Radu Ionut Tigoianu, Aurica Farcas
doaj   +1 more source