57 research outputs found

    Gas-Induced Formation/Transformation of Organic–Inorganic Halide Perovskites

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    The recently discovered gas-induced formation/transformation (GIFT) of organic–inorganic halide perovskites (OIHPs) represents unprecedented phenomena. The GIFT phenomena have not only revealed surprising properties of the fascinating OIHP materials but also showed tremendous promise in various applications, including solar cells, optoelectronics, sensors, and beyond. After briefly reviewing recent progress in the exploration and understanding of GIFT, a perspective on the future research directions in this area is provided herein. Also provided is a discussion on the significance of future mechanistic studies in unraveling the rich chemistry and materials science underlying GIFT and in exploring more potential applications

    Exceptional Grain Growth in Formamidinium Lead Iodide Perovskite Thin Films Induced by the δ‑to‑α Phase Transformation

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    The annealing of fine-grained (∼0.175 μm) “yellow” δ-FAPbI<sub>3</sub> nonperovskite thin films at 100 °C in dimethyl sulfoxide vapor for a few minutes results in exceptional grain growth (∼5 μm) induced by their transformation to the desirable “black” α-FAPbI<sub>3</sub> perovskite phase. Mechanistic insights into this unprecedented phenomenon are provided

    Meta-analysis of the weighted mean differences of aortic annulus measurement between MDCT, TTE, and TEE.

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    <p>MDCT: Multi-detector computed tomography, TTE: Transthoracic echocardiography, TEE: Transesophegeal echocardiography; NA, not available for ≤2 studies included in the meta-analysis.</p

    Basic characteristics of the 10 included studies involving 581 patients with aortic valve stenosis.

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    <p>AS: Aortic valve stenosis; NA: Unavailable; TTE: transthoracic echocardiography; TEE: transesophegeal echocardiography; MDCT: multi-detector computed tomography.</p

    Meta-analysis of the weighted mean difference of aortic annulus diameter measurement between coronal view on MDCT and TTE.

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    <p>Meta-analysis of the weighted mean difference of aortic annulus diameter measurement between coronal view on MDCT and TTE.</p

    Meta-analysis of the weighted mean difference of aortic annulus diameter measurement between coronal view and sagittal view on MDCT.

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    <p>Meta-analysis of the weighted mean difference of aortic annulus diameter measurement between coronal view and sagittal view on MDCT.</p

    Flowchart of study selection.

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    <p>Flowchart of study selection.</p

    Meta-analysis of the weighted mean difference of aortic annulus diameter measurement between coronal view on MDCT and TEE.

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    <p>Meta-analysis of the weighted mean difference of aortic annulus diameter measurement between coronal view on MDCT and TEE.</p

    Meta-analysis of the weighted mean difference of aortic annulus diameter measurement between TEE and TTE.

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    <p>Meta-analysis of the weighted mean difference of aortic annulus diameter measurement between TEE and TTE.</p

    Copper-Catalyzed Synthesis of Substituted Quinolines via C–N Coupling/Condensation from <i>ortho</i>-Acylanilines and Alkenyl Iodides

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    An efficient cascade copper-catalyzed intermolecular Ullmann-type C–N coupling/enamine condensation reaction is described, in which <i>ortho</i>-acylanilines and alkenyl iodides converted to multisubstituted quinolines in good to excellent yields
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