Reducing Exciton Binding Energy in 2D Covalent Organic Frameworks by Decreasing Layer Planarity
Sign Up to like & getrecommendations! Published in 2025 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202516937
Abstract: 2D covalent organic frameworks (2D COFs) exhibit pronounced excitonic effects, which severely limit the yield of free charge carriers and photocatalysis performance. While attempts to mitigate this limitation are scarce, and convincing relationship between molecular… read more here.
Keywords: layer planarity; exciton binding; binding energy;
Role of Spontaneous Orientational Polarization in Organic Donor–Acceptor Blends for Exciton Binding
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Optical Materials"
DOI: 10.1002/adom.202000896
Abstract: Electron–hole pairs at the interface between electron‐donating and electron‐accepting molecules form charge‐transfer excitons (CTEs) via Coulomb attraction. Generally, the attraction energy of the CTE is weaker than that of the Frenkel exciton because of spatial… read more here.
Keywords: exciton binding; donor acceptor; donor; polarization ... See more keywords
Sumanene Monolayer of Pure Carbon: A Two-Dimensional Kagome-Analogy Lattice with Desirable Band Gap, Ultrahigh Carrier Mobility, and Strong Exciton Binding Energy.
Sign Up to like & getrecommendations! Published in 2022 at "Small"
DOI: 10.1002/smll.202203274
Abstract: The design and synthesis of novel two-dimensional (2D) materials that possess robust structural stability and unusual physical properties may open up enormous opportunities for device and engineering applications. Herein, a 2D sumanene lattice that can… read more here.
Keywords: two dimensional; lattice; strong exciton; exciton binding ... See more keywords
Effect of fluorination on exciton binding energy and electronic coupling in small molecule acceptors for organic solar cells
Sign Up to like & getrecommendations! Published in 2020 at "Computational and Theoretical Chemistry"
DOI: 10.1016/j.comptc.2020.112797
Abstract: Abstract A detail study was performed to get deeper understanding of fluorination impact on intermolecular coupling and intermolecular interactions. Results showed that fluorine substitution plays an important role to modify the charge distribution or electrostatic… read more here.
Keywords: energy; fluorination; exciton binding; binding energy ... See more keywords
Optical properties and exciton binding energy and related parameters of CdTe: Pressure-induced effects
Sign Up to like & getrecommendations! Published in 2018 at "Optik"
DOI: 10.1016/j.ijleo.2018.05.069
Abstract: Abstract The present paper reports on the hydrostatic pressure dependence of the direct and indirect energy band-gaps, refractive index, static and high-frequency dielectric constants, exciton banding energy and exciton Bohr radius for CdTe in the… read more here.
Keywords: energy; optical properties; properties exciton; exciton binding ... See more keywords
Exciton binding energies in CdSe/MgSe quantum well structures
Sign Up to like & getrecommendations! Published in 2017 at "Superlattices and Microstructures"
DOI: 10.1016/j.spmi.2017.12.035
Abstract: Abstract Binding energies of heavy- and light-hole excitons in CdSe/MgSe quantum wells have been determined in terms of quantum well width. Hydrogenic wave functions are assumed to represent exciton wave functions. Contribution of the polarization… read more here.
Keywords: exciton; exciton binding; cdse mgse; binding energies ... See more keywords
Enhanced Photostability in Aqueous-Prepared MAPbBr3@polymer Films through Ligand-Regulated Exciton Binding Energy and Radiative Recombination.
Sign Up to like & getrecommendations! Published in 2025 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.5c01772
Abstract: Perovskite nanocrystals (PNCs) in polymer matrices, despite moisture and oxygen protection, suffer photostability issues under blue light, hindering their commercial use in lighting and displays. Herein, we introduce N-Oxalylglycine (NOG), a short-chain ligand with a… read more here.
Keywords: radiative recombination; photostability; exciton binding; polymer ... See more keywords
Exciton Binding Energy in CdSe Nanoplatelets Measured by One- and Two-Photon Absorption
Sign Up to like & getrecommendations! Published in 2021 at "Nano Letters"
DOI: 10.1021/acs.nanolett.1c04159
Abstract: Colloidal semiconductor nanoplatelets exhibit strong quantum confinement for electrons and holes as well as excitons in one dimension, while their in-plane motion is free. Because of the large dielectric contrast between the semiconductor and its… read more here.
Keywords: exciton binding; two photon; cdse nanoplatelets; one two ... See more keywords
On the Interplay of Electronic and Lattice Screening on Exciton Binding in Two-Dimensional Lead Halide Perovskites.
Sign Up to like & getrecommendations! Published in 2024 at "Nano letters"
DOI: 10.1021/acs.nanolett.4c05646
Abstract: We use path integral Monte Carlo to study the energetics of excitons in layered, hybrid organic-inorganic perovskites in order to elucidate the relative contributions of dielectric confinement and electron-phonon coupling. While the dielectric mismatch between… read more here.
Keywords: lead halide; exciton binding; electronic lattice; interplay electronic ... See more keywords
Determination of strain relaxation in InGaN/GaN nanowalls from quantum confinement and exciton binding energy dependent photoluminescence peak
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-26725-6
Abstract: GaN based nanostructures are being increasingly used to improve the performance of various devices including light emitting diodes and lasers. It is important to determine the strain relaxation in these structures for device design and… read more here.
Keywords: binding energy; strain relaxation; exciton binding;
Reducing exciton binding energy of antimony-based perovskites by improving the phase purity for efficient solar cells.
Sign Up to like & getrecommendations! Published in 2025 at "Materials horizons"
DOI: 10.1039/d5mh00003c
Abstract: Antimony-based halide perovskites have attracted significant attention owing to their unique optoelectronic properties and low toxicity. However, the distinct defect physics and high exciton binding energy of antimony-based perovskites compared with their lead-based analogues significantly… read more here.
Keywords: exciton binding; binding energy; antimony based; antimony ... See more keywords