Influence of Nanostructure on the Exciton Dynamics of Multichromophore Donor-Acceptor Block Copolymers.
Sign Up to like & getrecommendations! Published in 2017 at "ACS nano"
DOI: 10.1021/acsnano.7b00056
Abstract: We explore the synthesis and photophysics of nanostructured block copolymers that mimic light-harvesting complexes. We find that the combination of a polar and electron-rich boron dipyrromethene (BODIPY) block with a nonpolar electron-poor perylene diimide (PDI)… read more here.
Keywords: exciton dynamics; block; nanostructure exciton; block copolymers ... See more keywords
Synthetic Control of Exciton Dynamics in Bioinspired Cofacial Porphyrin Dimers.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.1c12889
Abstract: Understanding how the complex interplay among excitonic interactions, vibronic couplings, and reorganization energy determines coherence-enabled transport mechanisms is a grand challenge with both foundational implications and potential payoffs for energy science. We use a combined… read more here.
Keywords: cofacial porphyrin; coherence; exciton dynamics; porphyrin dimers ... See more keywords
Manipulating Exciton Dynamics toward Simultaneous High-Efficiency Narrowband Electroluminescence and Photon Upconversion by a Selenium-Incorporated Multiresonance Delayed Fluorescence Emitter.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c09543
Abstract: Multiresonance thermal activated delayed fluorescence (MR-TADF) materials with an efficient spin-flip transition between singlet and triplet excited states remain demanding. Herein, we report an MR-TADF compound (BN-Se) simultaneously possessing efficient (reverse) intersystem crossing (ISC/RISC), fast… read more here.
Keywords: exciton dynamics; delayed fluorescence; high efficiency; multiresonance ... See more keywords
Formally exact simulations of mesoscale exciton dynamics in molecular materials†
Sign Up to like & getrecommendations! Published in 2021 at "Chemical Science"
DOI: 10.1039/d1sc01448j
Abstract: Excited state carriers, such as excitons, can diffuse on the 100 nm to micron length scale in molecular materials but only delocalize over short length scales due to coupling between electronic and vibrational degrees-of-freedom. Here,… read more here.
Keywords: exciton dynamics; formally exact; mesoscale exciton; molecular materials ... See more keywords
Transforming exciton dynamics in perovskite nanocrystal through Mn doping.
Sign Up to like & getrecommendations! Published in 2023 at "Nanoscale"
DOI: 10.1039/d3nr00241a
Abstract: Zn-alloyed CsPb(Cl/Br)3 perovskite nanocrystals (PNCs) have been synthesized and used as a model system for Mn doping in order to understand the effect of Mn doping on exciton dynamics. While keeping the PL emission maximum… read more here.
Keywords: exciton dynamics; exciton; power law; emission ... See more keywords
Complex exciton dynamics with elevated temperature in a GaAsSb/GaAs quantum well heterostructure
Sign Up to like & getrecommendations! Published in 2023 at "Applied Physics Letters"
DOI: 10.1063/5.0152094
Abstract: Exciton dynamics in a GaAsSb/GaAs quantum well (QW) heterostructure were investigated via both steady state and transient photoluminescence. The measurements at 10 K demonstrated the coexistence of localized excitons (LEs) and free excitons (FEs), while a… read more here.
Keywords: exciton dynamics; gaassb gaas; gaas quantum; temperature ... See more keywords
Exciton dynamics in two-dimensional MoS2 on a hyperbolic metamaterial-based nanophotonic platform
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.041405
Abstract: The discovery of two-dimensional transition metal dichalcogenides (2D TMDs) has promised next-generation photonics and optoelectronics applications, particularly in the realm of nanophotonics. Arguably, the most crucial fundamental processes in these applications are the exciton migration… read more here.
Keywords: exciton dynamics; nanophotonic platform; hyperbolic metamaterial; two dimensional ... See more keywords
Opposite behavior of ultrafast dynamics of exciton shift and linewidth broadening in bilayer ReS2
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.014309
Abstract: The optical and optoelectronic properties of two-dimensional (2D) semiconductors are dominated by excitons, which usually appear as well-defined peaks in the spectral domain. Thus, detailed behaviors of excitons can be understood by tracking transient changes… read more here.
Keywords: mathrm mathrm; linewidth broadening; exciton dynamics; shift ... See more keywords
Exciton Dynamics in a Helical Molecular Aggregate
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Experimental and Theoretical Physics"
DOI: 10.1134/s1063776118090121
Abstract: The formation of excitons in a helical molecular nanochain is considered. The model equations are derived with allowance for a spatial dispersion of the polarization of optical transitions treated in the approximation of nearest-neighbor interaction… read more here.
Keywords: exciton dynamics; dynamics helical; medium; helical molecular ... See more keywords
Reconstruction of ultrafast exciton dynamics with a phase-retrieval algorithm.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.451759
Abstract: The first step to gain optical control over the ultrafast processes initiated by light in solids is a correct identification of the physical mechanisms at play. Among them, exciton formation has been identified as a… read more here.
Keywords: reconstruction ultrafast; dynamics phase; ultrafast exciton; exciton dynamics ... See more keywords