Activation of Self‐Trapped Emission in Stable Bismuth‐Halide Perovskite by Suppressing Strong Exciton–Phonon Coupling
Sign Up to like & getrecommendations! Published in 2021 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202102654
Abstract: All‐inorganic bismuth‐halide perovskites are promising alternatives for lead halide perovskites due to their admirable chemical stability and optoelectronic properties; however, these materials deliver inferior photoluminescence (PL) properties, severely hindering their prospects in lighting applications. Here,… read more here.
Keywords: perovskite; bismuth halide; exciton phonon;
Anharmonic Exciton‐Phonon Coupling in Metal‐Organic Chalcogenides Hybrid Quantum Wells
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Optical Materials"
DOI: 10.1002/adom.202202213
Abstract: In contrast to inorganic quantum wells, hybrid quantum wells (HQWs) based on metal‐organic semiconductors are characterized by relatively soft lattices, in which excitonic states can strongly couple to lattice phonons. Therefore, understanding the lattice's impact… read more here.
Keywords: exciton; exciton phonon; metal organic; quantum wells ... See more keywords
Defect-mediated strong exciton-phonon coupling between flower-like WS2 film with vicinity layers
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Luminescence"
DOI: 10.1016/j.jlumin.2020.117483
Abstract: Abstract The exciton-phonon coupling plays an important role in the optical properties of two-dimensional (2D) materials. In the preparation of 2D TMDC films, there are often different degrees of intrinsic defects, which have significant impacts… read more here.
Keywords: phonon; flower like; exciton phonon; like ws2 ... See more keywords
Morphology-Independent Stable White-Light Emission from Self-Assembled Two-Dimensional Perovskites Driven by Strong Exciton–Phonon Coupling to the Organic Framework
Sign Up to like & getrecommendations! Published in 2017 at "Chemistry of Materials"
DOI: 10.1021/acs.chemmater.7b00073
Abstract: Hybrid two-dimensional (2D) lead halide perovskites have been employed in optoelectronic applications, including white-light emission for light-emitting diodes (LEDs). However, until now, there have been limited reports about white-light-emitting lead halide perovskites with experimental insights… read more here.
Keywords: light emission; exciton phonon; two dimensional; strong exciton ... See more keywords
Interplay of Surface and Interior Modes in Exciton-Phonon Coupling at the Nanoscale.
Sign Up to like & getrecommendations! Published in 2021 at "Nano letters"
DOI: 10.1021/acs.nanolett.1c02953
Abstract: Exciton-phonon coupling (EXPC) plays a key role in the optoelectronic properties of semiconductor nanocrystals (NCs), but a microscopic picture of EXPC is still lacking, particularly regarding the magnitude and scaling with NC size, the dependence… read more here.
Keywords: modes exciton; exciton phonon; phonon coupling; interior modes ... See more keywords
Exciton-Phonon and Trion-Phonon Couplings Revealed by Photoluminescence Spectroscopy of Single CsPbBr3 Perovskite Nanocrystals.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.2c02970
Abstract: Lead halide perovskite nanocrystals (NCs) have outstanding photoluminescence (PL) properties and excellent potential for light-emitting diodes and single-photon sources. Here, we report the multiple-peak structures originating from excitons, trions, and biexcitons in low-temperature PL spectra… read more here.
Keywords: phonon couplings; spectroscopy; perovskite nanocrystals; single cspbbr3 ... See more keywords
Exciton Lifetime and Optical Line Width Profile via Exciton-Phonon Interactions: Theory and First-Principles Calculations for Monolayer MoS2.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.3c00732
Abstract: Exciton dynamics dictates the evolution of photoexcited carriers in photovoltaic and optoelectronic devices. However, interpreting their experimental signatures is a challenging theoretical problem due to the presence of both electron-phonon and many-electron interactions. We develop… read more here.
Keywords: exciton; monolayer mos2; phonon; line ... See more keywords
Interlayer Exciton-Phonon Bound State in Bi2Se3/Monolayer WS2 van der Waals Heterostructures.
Sign Up to like & getrecommendations! Published in 2023 at "ACS nano"
DOI: 10.1021/acsnano.2c10313
Abstract: The ability to assemble layers of two-dimensional (2D) materials to form permutations of van der Waals heterostructures provides significant opportunities in materials design and synthesis. Interlayer interactions can enable desired properties and functionality, and understanding… read more here.
Keywords: van der; phonon bound; der waals; phonon ... See more keywords
Real-Time Observation of Exciton-Phonon Coupling Dynamics in Self-Assembled Hybrid Perovskite Quantum Wells.
Sign Up to like & getrecommendations! Published in 2017 at "ACS nano"
DOI: 10.1021/acsnano.7b03984
Abstract: Self-assembled hybrid perovskite quantum wells have attracted attention due to their tunable emission properties, ease of fabrication, and device integration. However, the dynamics of excitons in these materials, especially how they couple to phonons, remains… read more here.
Keywords: perovskite quantum; exciton phonon; phonon; hybrid perovskite ... See more keywords
Exciton-phonon interaction in quasi-two dimensional layered (PEA)2(CsPbBr3)n-1PbBr4 perovskite.
Sign Up to like & getrecommendations! Published in 2019 at "Nanoscale"
DOI: 10.1039/c9nr06834a
Abstract: Two-dimensional (2D) Ruddlesden-Popper perovskites with bulky organic cations have attracted extensive attention in light-emitting devices and photovoltaics due to their robust environment stability, tunable luminescent color, strong exciton binding and promising efficiency. A quantum well… read more here.
Keywords: exciton; exciton phonon; two dimensional; phonon ... See more keywords
Exciton–phonon coupling in two-dimensional layered (BA)2PbI4 perovskite microplates
Sign Up to like & getrecommendations! Published in 2023 at "RSC Advances"
DOI: 10.1039/d2ra06401d
Abstract: Two-dimensional layered (BA)2PbI4 (BA = C4H9NH3) perovskites are emerging as a new class of layered materials and show great potential in optoelectronic applications. Elucidating how exciton–phonon interaction affects the excitonic emission is of great importance… read more here.
Keywords: two dimensional; exciton phonon; phonon coupling; emission ... See more keywords