Search Results - "Scheblykin, Ivan"
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Artifacts in Absorption Measurements of Organometal Halide Perovskite Materials: What Are the Real Spectra?
Published in The journal of physical chemistry letters (03-09-2015)“…Organometal halide (OMH) perovskites have attracted lots of attention over the last several years due to their very promising performance as the materials for…”
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Small Number of Defects per Nanostructure Leads to “Digital” Quenching of Photoluminescence: The Case of Metal Halide Perovskites
Published in Advanced energy materials (01-12-2020)“…Long charge carrier diffusion length and large grain size are commonly believed to be inherent properties of highly luminescent polycrystalline thin‐film…”
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3
Fluorescence Anisotropy Reloaded—Emerging Polarization Microscopy Methods for Assessing Chromophores' Organization and Excitation Energy Transfer in Single Molecules, Particles, Films, and Beyond
Published in Advanced materials (Weinheim) (01-05-2019)“…Fluorescence polarization is widely used to assess the orientation/rotation of molecules, and the excitation energy transfer between closely located…”
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Super-Resolution Luminescence Microspectroscopy Reveals the Mechanism of Photoinduced Degradation in CH3NH3PbI3 Perovskite Nanocrystals
Published in Journal of physical chemistry. C (19-05-2016)“…Photoinduced degradation of individual methylammonium lead triiodide (MAPbI3) perovskite nanocrystals was studied using super-resolution luminescence…”
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5
Thermally Activated Exciton Dissociation and Recombination Control the Carrier Dynamics in Organometal Halide Perovskite
Published in The journal of physical chemistry letters (03-07-2014)“…Solar cells based on organometal halide perovskites have seen rapidly increasing efficiencies, now exceeding 15%. Despite this progress, there is still limited…”
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Enhanced Organo-Metal Halide Perovskite Photoluminescence from Nanosized Defect-Free Crystallites and Emitting Sites
Published in The journal of physical chemistry letters (15-10-2015)“…Photoluminescence (PL) of organo-metal halide perovskite semiconductors can be enhanced by several orders of magnitude by exposure to visible light. We applied…”
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Giant Photoluminescence Blinking of Perovskite Nanocrystals Reveals Single-Trap Control of Luminescence
Published in Nano letters (11-03-2015)“…Fluorescence super-resolution microscopy showed correlated fluctuations of photoluminescence intensity and spatial localization of individual perovskite…”
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Multi‐Stage Phase‐Segregation of Mixed Halide Perovskites under Illumination: A Quantitative Comparison of Experimental Observations and Thermodynamic Models
Published in Advanced functional materials (16-01-2023)“…Photo‐ and charge‐carrier‐induced ion migration is a major challenge when utilizing metal halide perovskite semiconductors for optoelectronic applications. For…”
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Free-Standing Metal Halide Perovskite Nanowire Arrays with Blue-Green Heterostructures
Published in Nano letters (13-04-2022)“…Vertically aligned metal halide perovskite (MHP) nanowires are promising for various optoelectronic applications, which can be further enhanced by…”
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10
Defect-induced local variation of crystal phase transition temperature in metal-halide perovskites
Published in Nature communications (26-06-2017)“…Solution-processed organometal halide perovskites are hybrid crystalline semiconductors highly interesting for low-cost and efficient optoelectronics. Their…”
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Are Shockley-Read-Hall and ABC models valid for lead halide perovskites?
Published in Nature communications (07-06-2021)“…Metal halide perovskites are an important class of emerging semiconductors. Their charge carrier dynamics is poorly understood due to limited knowledge of…”
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Large lattice distortions and size-dependent bandgap modulation in epitaxial halide perovskite nanowires
Published in Nature communications (24-01-2020)“…Metal-halide perovskites have been shown to be remarkable and promising optoelectronic materials. However, despite ongoing research from multiple perspectives,…”
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13
Microscopic insight into non-radiative decay in perovskite semiconductors from temperature-dependent luminescence blinking
Published in Nature communications (12-04-2019)“…Organo-metal halide perovskites are promising solution-processed semiconductors, however, they possess diverse and largely not understood non-radiative…”
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Exploring the Electronic Band Structure of Organometal Halide Perovskite via Photoluminescence Anisotropy of Individual Nanocrystals
Published in Nano letters (10-08-2016)“…Understanding electronic processes in organometal halide perovskites, flourishing photovoltaic, and emitting materials requires unraveling the origin of their…”
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15
Red-Shifted Photoluminescence from Crystal Edges Due to Carrier Redistribution and Reabsorption in Lead Triiodide Perovskites
Published in Journal of physical chemistry. C (16-05-2019)“…Photoluminescence (PL) of CH3NH3PbI3 perovskites depends strongly on sample preparation, atmosphere, crystal size, and so forth. However, the origin of these…”
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16
Effect of Conjugated Backbone Protection on Intrinsic and Light-Induced Fluorescence Quenching in Polythiophenes
Published in Chemistry of materials (26-08-2014)“…Polythiophenes (PTs), particularly regioregular poly(3-hexylthiophene-2,5-diyl) (rr-P3HT), are important materials in photovoltaics. The photophysical…”
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“Supertrap” at Work: Extremely Efficient Nonradiative Recombination Channels in MAPbI3 Perovskites Revealed by Luminescence Super-Resolution Imaging and Spectroscopy
Published in ACS nano (27-06-2017)“…Organo-metal halide perovskites are some of the most promising materials for the new generation of low-cost photovoltaic and light-emitting devices. Their…”
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Relating Defect Luminescence and Nonradiative Charge Recombination in MAPbI3 Perovskite Films
Published in The journal of physical chemistry letters (05-03-2020)“…Nonradiative losses in semiconductors are related to defects. At cryogenic temperatures, defect-related photoluminescence (PL) at energies lower than the…”
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Manipulating crystallization dynamics through chelating molecules for bright perovskite emitters
Published in Nature communications (10-08-2021)“…Molecular additives are widely utilized to minimize non-radiative recombination in metal halide perovskite emitters due to their passivation effects from…”
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Excited State and Charge Photogeneration Dynamics in Conjugated Polymers
Published in The journal of physical chemistry. B (14-06-2007)“…Conjugated polymers are becoming interesting materials for a range of optoelectronic applications. However, their often complex electronic and structural…”
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