Exciton Transport in Molecular Aggregates – From Natural Antennas to Synthetic Chromophore Systems
Sign Up to like & getrecommendations! Published in 2017 at "Advanced Energy Materials"
DOI: 10.1002/aenm.201700236
Abstract: The transport of excitation energy in molecular aggregates is of crucial importance for the function of organic optoelectronic devices and next-generation solar cells. First, this review summarizes the theoretical background of the nature of the… read more here.
Keywords: aggregates natural; transport molecular; exciton transport; spectroscopy ... See more keywords
On the Long-Range Exciton Transport in Molecular Systems: The Application to H-Aggregated Heterotriangulene Chains
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.7b08933
Abstract: Self-assembled aggregates of pigment molecules are potential building blocks for excitonic circuits that find their application in energy conversion and optical signal processing. Recent experimental studies of one-dimensional heterotriangulene supramolecular aggregates suggested that singlet excitons… read more here.
Keywords: heterotriangulene; transport; exciton transport; application ... See more keywords
Dark-Exciton Driven Energy Funneling into Dielectric Inhomogeneities in Two-Dimensional Semiconductors.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.1c04997
Abstract: The optoelectronic and transport properties of two-dimensional transition metal dichalcogenide semiconductors (2D TMDs) are highly susceptible to external perturbation, enabling precise tailoring of material function through postsynthetic modifications. Here, we show that nanoscale inhomogeneities known… read more here.
Keywords: exciton; two dimensional; funneling dielectric; dielectric inhomogeneities ... See more keywords
Tailorable Exciton Transport in Doped Peptide-Amphiphile Assemblies.
Sign Up to like & getrecommendations! Published in 2017 at "ACS nano"
DOI: 10.1021/acsnano.7b03867
Abstract: Light-harvesting biomaterials are an attractive target in photovoltaics, photocatalysis, and artificial photosynthesis. Through peptide self-assembly, complex nanostructures can be engineered to study the role of chromophore organization during light absorption and energy transport. To this… read more here.
Keywords: transport; exciton transport; peptide amphiphile; tailorable exciton ... See more keywords
Intrinsic measurements of exciton transport in photovoltaic cells
Sign Up to like & getrecommendations! Published in 2019 at "Nature Communications"
DOI: 10.1038/s41467-019-09062-8
Abstract: Organic photovoltaic cells are partiuclarly sensitive to exciton harvesting and are thus, a useful platform for the characterization of exciton diffusion. While device photocurrent spectroscopy can be used to extract the exciton diffusion length, this… read more here.
Keywords: photovoltaic cells; exciton; device; exciton transport ... See more keywords
Long-range exciton transport and slow annihilation in two-dimensional hybrid perovskites
Sign Up to like & getrecommendations! Published in 2020 at "Nature Communications"
DOI: 10.1038/s41467-020-14403-z
Abstract: Two-dimensional hybrid organic-inorganic perovskites with strongly bound excitons and tunable structures are desirable for optoelectronic applications. Exciton transport and annihilation are two key processes in determining device efficiencies; however, a thorough understanding of these processes… read more here.
Keywords: annihilation; dimensional hybrid; microscopy; exciton transport ... See more keywords
Spatiotemporally controlled room-temperature exciton transport under dynamic strain
Sign Up to like & getrecommendations! Published in 2022 at "Nature Photonics"
DOI: 10.1038/s41566-021-00951-3
Abstract: Two-dimensional transition metal dichalcogenides (TMDs) provide an attractive platform for studying strain dependent exciton transport at room temperature due to large exciton binding energy and strong bandgap sensitivity to mechanical stimuli. Here, we use Rayleigh… read more here.
Keywords: room temperature; exciton transport; exciton;
Efficient interlayer exciton transport in two-dimensional metal-halide perovskites
Sign Up to like & getrecommendations! Published in 2021 at "Materials horizons"
DOI: 10.1039/d0mh01723j
Abstract: We show that excitons can travel >100 nm in the out-of-plane direction of 2D perovskites, translating into sub-ps interlayer transfer rates. The transport of excitons in these materials is therefore much less anisotropic than that… read more here.
Keywords: interlayer exciton; efficient interlayer; transport two; two dimensional ... See more keywords
Exciton transport enhancement across quantum Su-Schrieffer-Heeger lattices with quartic nonlinearity
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.104307
Abstract: In the present work we discuss the propagation of excitons across a one-dimensional Su-Schrieffer-Heeger lattice, which possesses both harmonic oscillations and weak quartic anharmonicities. When quantizing these vibrational degrees of freedom we identify several phonon-conserving… read more here.
Keywords: transport; schrieffer heeger; exciton transport;
Enhanced exciton transport in an optical cavity field with spatially varying profile.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review. E"
DOI: 10.1103/physreve.100.012125
Abstract: We explicitly consider the spatial profile of the light field in the study of exciton transport through a one-dimensional molecular aggregate in the cavity. When the scale of the aggregate is comparable with the cavity… read more here.
Keywords: field; profile; transport; exciton transport ... See more keywords
Quantum corrections of the truncated Wigner approximation applied to an exciton transport model.
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review E"
DOI: 10.1103/physreve.95.042115
Abstract: We modify the path integral representation of exciton transport in open quantum systems such that an exact description of the quantum fluctuations around the classical evolution of the system is possible. As a consequence, the… read more here.
Keywords: wigner approximation; approximation; exciton transport; transport model ... See more keywords