Stabilizing perovskite nanocrystals by controlling protective surface ligands density
Sign Up to like & getrecommendations! Published in 2019 at "Nano Research"
DOI: 10.1007/s12274-019-2407-7
Abstract: After nanocrystals synthesis, the purification process with anti-solvents is an essential step to get clean nanocrystals, which could get rid of the by-products of the synthesis. It is generally recognized that this process could bring… read more here.
Keywords: ligands density; surface ligands; perovskite nanocrystals; cspbbr3 nanocrystals ... See more keywords
Luminescence properties of CsPbBr3 nanocrystals dispersed in a polymer matrix
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Luminescence"
DOI: 10.1016/j.jlumin.2018.02.021
Abstract: Abstract Investigation of the spectral and luminescence characteristics of CsPbBr3 nanocrystals coated with poly (NVP-co-VEP-co-GMA) oligoperoxide molecules dispersed in a polymer matrix under excitation in the energy region of quanta E = 2 ÷ 6 eV was… read more here.
Keywords: dispersed polymer; luminescence; polymer matrix; cspbbr3 nanocrystals ... See more keywords
Highly enhanced photoluminescence from perovskite-semiconductor composites formed by CsPbBr3 nanocrystals embedded in ZnSe microsphere
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Luminescence"
DOI: 10.1016/j.jlumin.2020.117081
Abstract: Abstract Perovskite-semiconductor composites formed by high quality CsPbBr3 nanocrystals embedded in ZnSe microsphere were prepared. The optical properties of pure CsPbBr3 and composites were studied in detailed. Highly enhanced luminescence from CsPbBr3-ZnSe composites was observed… read more here.
Keywords: znse; semiconductor composites; cspbbr3 nanocrystals; nanocrystals embedded ... See more keywords
Encapsulation of CsPbBr3 Nanocrystals by a Tripodal Amine Markedly Improves Photoluminescence and Stability Concomitantly via Anion Defect Elimination
Sign Up to like & getrecommendations! Published in 2020 at "Chemistry of Materials"
DOI: 10.1021/acs.chemmater.0c00385
Abstract: Photoluminescence of halide perovskite nanocrystals (NCs) quenches rapidly due to ambient instability, inherent trap states and imperfect ligand-NCs passivation. We report a novel synthetic strateg... read more here.
Keywords: tripodal amine; nanocrystals tripodal; cspbbr3 nanocrystals; photoluminescence ... See more keywords
Direct Hot-Injection Synthesis of Mn-Doped CsPbBr3 Nanocrystals
Sign Up to like & getrecommendations! Published in 2018 at "Chemistry of Materials"
DOI: 10.1021/acs.chemmater.8b00310
Abstract: We report the direct hot-injection synthesis of Mn-doped cesium lead bromide (CsPbBr3) perovskite nanocrystals. In contrast to Mn-doped CsPbCl3 nanocrystals, where doping of Mn under typical hot-injection synthesis condition has been relatively straightforward, extending the… read more here.
Keywords: synthesis; doped cspbbr3; hot injection; cspbbr3 nanocrystals ... See more keywords
Pressure Effects on Optoelectronic Properties of CsPbBr3 Nanocrystals
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.0c02701
Abstract: The pressure-dependent optoelectronic properties of all-inorganic perovskite CsPbBr3 nanocrystals (NCs) are investigated with steady-state and transient spectroscopy. The steady-state absorption an... read more here.
Keywords: optoelectronic properties; cspbbr3 nanocrystals; effects optoelectronic; properties cspbbr3 ... See more keywords
Enhancing Luminescence and Photostability of CsPbBr3 Nanocrystals via Surface Passivation with Silver Complex
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.8b04569
Abstract: We demonstrate that Ag(I) complex can fix bromide on the nanocrystal surface, reduce surface trap density, and as a result efficiently passivate the surface of CsPbBr3 nanocrystals. This passivation makes the photoluminescence (PL) intensity increase… read more here.
Keywords: surface; passivation; photostability cspbbr3; cspbbr3 nanocrystals ... See more keywords
Spectral Fingerprint of Quantum Confinement in Single CsPbBr3 Nanocrystals.
Sign Up to like & getrecommendations! Published in 2023 at "Nano letters"
DOI: 10.1021/acs.nanolett.3c00793
Abstract: Lead halide perovskite nanocrystals are promising materials for classical and quantum light emission. To understand these outstanding properties, a thorough analysis of the band-edge exciton emission is needed, which is not reachable in ensemble and… read more here.
Keywords: quantum confinement; cspbbr3 nanocrystals; single cspbbr3;
Self-Assembly of CsPbBr3 Perovskites in Micropatterned Polymeric Surfaces: Toward Luminescent Materials with Self-Cleaning Properties
Sign Up to like & getrecommendations! Published in 2022 at "ACS Applied Materials & Interfaces"
DOI: 10.1021/acsami.2c01567
Abstract: In this work, we present a series of porous, honeycomb-patterned polymer films containing CsPbBr3 perovskite nanocrystals as light emitters prepared by the breath figure approach. Microscopy analysis of the topography and composition of the material… read more here.
Keywords: self assembly; self cleaning; cspbbr3 nanocrystals; cleaning properties ... See more keywords
Hexahedron Symmetry and Multidirectional Facet Coupling of Orthorhombic CsPbBr3 Nanocrystals.
Sign Up to like & getrecommendations! Published in 2023 at "ACS nano"
DOI: 10.1021/acsnano.3c01617
Abstract: The cube shape of orthorhombic phase CsPbBr3 nanocrystals possesses the ability of selective facet packing that leads to 1D, 2D, and 3D nanostructures. In solution, their transformation with linear one-dimensional packing to nanorods/nanowires is extensively… read more here.
Keywords: hexahedron symmetry; facet; cspbbr3; cspbbr3 nanocrystals ... See more keywords
Mixed Ligand Passivation as the Origin of Near-Unity Emission Quantum Yields in CsPbBr3 Nanocrystals.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c13527
Abstract: Key features of syntheses, involving the quaternary ammonium passivation of CsPbBr3 nanocrystals (NCs), include stable, reproducible, and large (often near-unity) emission quantum yields (QYs). The archetypical example involves didodecyl dimethyl ammonium (DDDMA+)-passivated CsPbBr3 NCs where… read more here.
Keywords: unity emission; emission quantum; cspbbr3 nanocrystals; passivation ... See more keywords