Search Results - "Hall, Christopher R"
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Light-induced reversal of ion segregation in mixed-halide perovskites
Published in Nature materials (01-01-2021)“…Bandgap instability due to light-induced phase segregation in mixed-halide perovskites presents a major challenge for their future commercial use. Here we…”
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Visualizing Phase Segregation in Mixed‐Halide Perovskite Single Crystals
Published in Angewandte Chemie International Edition (25-02-2019)“…Mixed organolead halide perovskites (MOHPs), CH3NH3Pb(BrxI1−x)3, have been shown to undergo phase segregation into iodide‐rich domains under illumination,…”
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Ultrafast Dynamics in Light-Driven Molecular Rotary Motors Probed by Femtosecond Stimulated Raman Spectroscopy
Published in Journal of the American Chemical Society (31-05-2017)“…Photochemical isomerization in sterically crowded chiral alkenes is the driving force for molecular rotary motors in nanoscale machines. Here the excited-state…”
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4
Doping-enhanced radiative efficiency enables lasing in unpassivated GaAs nanowires
Published in Nature communications (17-06-2016)“…Nanolasers hold promise for applications including integrated photonics, on-chip optical interconnects and optical sensing. Key to the realization of current…”
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Photoactivation of the BLUF Protein PixD Probed by the Site-Specific Incorporation of Fluorotyrosine Residues
Published in Journal of the American Chemical Society (18-10-2017)“…The flavin chromophore in blue-light-using FAD (BLUF) photoreceptors is surrounded by a hydrogen bond network that senses and responds to changes in the…”
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Ultrafast Excited State Dynamics in Molecular Motors: Coupling of Motor Length to Medium Viscosity
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (16-03-2017)“…Photochemically driven molecular motors convert the energy of incident radiation to intramolecular rotational motion. The motor molecules considered here…”
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Variation in LOV Photoreceptor Activation Dynamics Probed by Time-Resolved Infrared Spectroscopy
Published in Biochemistry (Easton) (06-02-2018)“…The light, oxygen, voltage (LOV) domain proteins are blue light photoreceptors that utilize a noncovalently bound flavin mononucleotide (FMN) cofactor as the…”
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Tetraphenylethene 9,10‐Diphenylanthracene Derivatives – Synthesis and Photophysical Properties
Published in ChemPlusChem (Weinheim, Germany) (01-06-2019)“…A series of tetraphenylethene 9,10‐diphenylanthracene (TPE‐DPA) derivatives have been synthesized, and their photophysical properties studied…”
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Ultrafast stimulated Raman study of the complete reactive potential energy surface of a photomolecular rotor
Published in EPJ Web of Conferences (2019)“…Femtosecond Stimulated Raman Spectroscopy (FSRS) reports on structure and dynamics of excited states. Here we record FSRS for a photomolecular motor in its…”
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Journal Article Conference Proceeding -
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Ultrafast Structure and Dynamics in the Thermally Activated Delayed Fluorescence of a Carbene–Metal–Amide
Published in The journal of physical chemistry letters (04-10-2018)“…Thermally activated delayed fluorescence has enormous potential for the development of efficient light emitting diodes. A recently discovered class of…”
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Revealing the Role of Methylammonium Chloride for Improving the Performance of 2D Perovskite Solar Cells
Published in ACS applied materials & interfaces (10-06-2020)“…Layered perovskite films, composed of two-dimensional (2D) Ruddlesden-Popper perovskites (RPPs), show improved stability compared to their conventional…”
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12
Time resolved structural dynamics of butadiyne-linked porphyrin dimers
Published in Structural dynamics (Melville, N.Y.) (01-03-2016)“…In this work, the timescales and mechanisms associated with the structural dynamics of butadiyne-linked porphyrin dimers are investigated through time resolved…”
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13
Excited State Resonance Raman of Flavin Mononucleotide: Comparison of Theory and Experiment
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (22-07-2021)“…Blue light absorbing flavoproteins play important roles in a variety of photobiological processes. Consequently, there have been numerous investigations of…”
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14
Mapping the Excited‐State Potential Energy Surface of a Photomolecular Motor
Published in Angewandte Chemie International Edition (22-05-2018)“…A detailed understanding of the operation and efficiency of unidirectional photomolecular rotary motors is essential for their effective exploitation in…”
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15
Infrared spectroscopy reveals multi-step multi-timescale photoactivation in the photoconvertible protein archetype dronpa
Published in Nature chemistry (01-08-2018)“…Photochromic fluorescent proteins play key roles in super-resolution microscopy and optogenetics. The light-driven structural changes that modulate the…”
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Quantifying the Relaxation Dynamics of Higher Electronic Excited States in Perylene
Published in The journal of physical chemistry letters (14-09-2023)“…Gating logical operations through high-lying electronic excited states presents opportunities for developing ultrafast, subnanometer computational devices. A…”
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Nanosecond heme-to-heme electron transfer rates in a multiheme cytochrome nanowire reported by a spectrally unique His/Met-ligated heme
Published in Proceedings of the National Academy of Sciences - PNAS (28-09-2021)“…Proteins achieve efficient energy storage and conversion through electron transfer along a series of redox cofactors. Multiheme cytochromes are notable…”
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Resolving the Mechanisms of Photocurrent Improvement in Ternary Organic Solar Cells
Published in Journal of physical chemistry. C (01-08-2019)“…The ultralow band gap small-molecule IEICO-4F has been employed as a secondary acceptor in both fullerene-based (PTB7-Th:PC71BM) and nonfullerene-based…”
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Photoinitiated Energy Transfer in Porous‐Cage‐Stabilised Silver Nanoparticles
Published in Angewandte Chemie International Edition (12-06-2023)“…We report a new composite material consisting of silver nanoparticles decorated with three‐dimensional molecular organic cages based on light‐absorbing…”
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Photophysical Studies of Helicate and Mesocate Double-Stranded Dinuclear Ru(II) Complexes
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (09-05-2024)“…The metal–ligand charge transfer (3MLCT) and phosphorescence-quenching metal-centered (3MC) states of the helicate and mesocate diastereoisomers of a…”
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