Search Results - "Infante, Ivan"
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Surface Traps in Colloidal Quantum Dots: A Combined Experimental and Theoretical Perspective
Published in The journal of physical chemistry letters (19-10-2017)“…Surface traps are ubiquitous to nanoscopic semiconductor materials. Understanding their atomistic origin and manipulating them chemically have capital…”
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The Future of Ligand Engineering in Colloidal Semiconductor Nanocrystals
Published in Accounts of chemical research (06-04-2021)“…Conspectus Next-generation colloidal semiconductor nanocrystals featuring enhanced optoelectronic properties and processability are expected to arise from…”
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Resurfacing halide perovskite nanocrystals
Published in Science (American Association for the Advancement of Science) (31-05-2019)“…Optoelectronic devices require tailored ligands that stabilize nanocrystals and promote charge transport Metal halide perovskite semiconductors are ionic…”
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4
Surface Termination, Morphology, and Bright Photoluminescence of Cesium Lead Halide Perovskite Nanocrystals
Published in ACS energy letters (09-12-2016)“…Colloidal cesium lead halide perovskite nanocrystals (CsPbX3 PNCs, X = Cl, Br, I) exhibit important optoelectronic properties that make them amenable for a…”
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5
On the Origin of Surface Traps in Colloidal II–VI Semiconductor Nanocrystals
Published in Chemistry of materials (24-01-2017)“…One of the greatest challenges in the field of semiconductor nanomaterials is to make trap-free nanocrystalline structures to attain a remarkable improvement…”
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Highly Emissive Self‐Trapped Excitons in Fully Inorganic Zero‐Dimensional Tin Halides
Published in Angewandte Chemie International Edition (27-08-2018)“…The spatial localization of charge carriers to promote the formation of bound excitons and concomitantly enhance radiative recombination has long been a goal…”
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7
“Darker-than-Black” PbS Quantum Dots: Enhancing Optical Absorption of Colloidal Semiconductor Nanocrystals via Short Conjugated Ligands
Published in Journal of the American Chemical Society (11-02-2015)“…Colloidal quantum dots (QDs) stand among the most attractive light-harvesting materials to be exploited for solution-processed optoelectronic applications. To…”
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Ultra-narrow room-temperature emission from single CsPbBr3 perovskite quantum dots
Published in Nature communications (11-05-2022)“…Semiconductor quantum dots have long been considered artificial atoms, but despite the overarching analogies in the strong energy-level quantization and the…”
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The Phosphine Oxide Route toward Lead Halide Perovskite Nanocrystals
Published in Journal of the American Chemical Society (07-11-2018)“…We report an amine-free synthesis of lead halide perovskite (LHP) nanocrystals, using trioctylphosphine oxide (TOPO) instead of aliphatic amines, in…”
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10
Shape-Pure, Nearly Monodispersed CsPbBr3 Nanocubes Prepared Using Secondary Aliphatic Amines
Published in Nano letters (12-12-2018)“…Fully inorganic cesium lead halide perovskite (CsPbX3) nanocrystals (NCs) have been extensively studied due to their excellent optical properties, especially…”
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Probing Solvent–Ligand Interactions in Colloidal Nanocrystals by the NMR Line Broadening
Published in Chemistry of materials (14-08-2018)“…Although solvent–ligand interactions play a major role in nanocrystal synthesis, dispersion formulation, and assembly, there is currently no direct method to…”
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12
Directional Anisotropy of the Vibrational Modes in 2D-Layered Perovskites
Published in ACS nano (28-04-2020)“…The vibrational modes in organic/inorganic layered perovskites are of fundamental importance for their optoelectronic properties. The hierarchical architecture…”
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13
Finding and Fixing Traps in II–VI and III–V Colloidal Quantum Dots: The Importance of Z‑Type Ligand Passivation
Published in Journal of the American Chemical Society (21-11-2018)“…Energy levels in the band gap arising from surface states can dominate the optical and electronic properties of semiconductor nanocrystal quantum dots (QDs)…”
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14
Simultaneous Cationic and Anionic Ligand Exchange For Colloidally Stable CsPbBr3 Nanocrystals
Published in ACS energy letters (12-04-2019)“…Postsynthesis ligand exchange has been employed extensively on lead halide perovskite (LHP) nanocrystals (NCs), but the complex ligand shell composition of the…”
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15
Bright Blue Emitting Cu-Doped Cs2ZnCl4 Colloidal Nanocrystals
Published in Chemistry of materials (14-07-2020)“…We report here the synthesis of undoped and Cu-doped Cs2ZnCl4 nanocrystals (NCs) in which we could tune the concentration of Cu from 0.7 to 7.5%. Cs2ZnCl4 has…”
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Colloidal CsPbX3 (X = Cl, Br, I) Nanocrystals 2.0: Zwitterionic Capping Ligands for Improved Durability and Stability
Published in ACS energy letters (09-03-2018)“…Colloidal lead halide perovskite nanocrystals (NCs) have recently emerged as versatile photonic sources. Their processing and optoelectronic applications are…”
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Rationalizing and Controlling the Surface Structure and Electronic Passivation of Cesium Lead Halide Nanocrystals
Published in ACS energy letters (11-01-2019)“…Colloidal lead halide perovskite nanocrystals (NCs) have recently emerged as versatile photonic sources. Their processing and luminescent properties are…”
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The Reactivity of CsPbBr3 Nanocrystals toward Acid/Base Ligands
Published in ACS nano (10-01-2022)“…The interaction of lead bromide perovskite nanocrystals with charged ligands, such as salts, zwitterions, or acid–base pairs, has been extensively documented…”
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Alloy CsCdxPb1–xBr3 Perovskite Nanocrystals: The Role of Surface Passivation in Preserving Composition and Blue Emission
Published in Chemistry of materials (04-12-2020)“…Various strategies have been proposed to engineer the band gap of metal halide perovskite nanocrystals (NCs) while preserving their structure and composition…”
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Electronic Structure Engineering Achieved via Organic Ligands in Silicon Nanocrystals
Published in Chemistry of materials (11-08-2020)“…A class of important semiconductors, such as Si, Ge, or C, has an indirect band gap, which critically limits their optical properties. Lack of efficient…”
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