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Ultra‐thin 2D materials have great potential as electrodes for micro‐supercapacitors (MSCs) because of their facile ion transport channels. Here, a high‐precision controllable photonic‐synthesis strategy that provided 1 inch wafer‐scale ultra‐thin film arrays of alloyed WxMo2xSy with sulfur vacancies and expanded interlayer (13.2 Å, twice of 2H MoS2) is reported. This strategy regulates the nucleation and growth of transition metal dichalcogenides (TMDs) on the picosecond or even femtosecond scale, which induces Mo–W alloying, interlayer expansion, and sulfur loss. Therefore, the diffusion barrier of WxMo2xSy is reduced, with charge transfer and ion diffusion enhancing. The as‐prepared symmetric MSCs with the size of 100 × 100 µm2 achieve ultrahigh specific capacitance (242.57 mF cm−2 and 242567.83 F cm−3), and energy density (21.56 Wh cm−3 with power density of 485.13 W cm3). The established synthesis strategy fits numerous materials, which provides a universal method for the flexible synthesis of electrodes in microenergy devices. [ABSTRACT FROM AUTHOR]

Bailing capsule (BLC), a drug that is clinically administered to modulate the autoimmune system, exhibits promising therapeutic potential in the treatment of thyroiditis. This study elucidates the chemical profile of BLC and its potential therapeutic mechanism in thyroiditis, leveraging network pharmacology and molecular docking techniques. Utilizing ultra‐high‐performance liquid chromatography coupled with linear trap‐Orbitrap mass spectrometry (UHPLC‐LTQ‐Orbitrap MS), 58 compounds were identified, the majority of which were nucleosides and amino acids. Utilizing the ultra‐high‐performance liquid chromatography coupled with triple quadrupole tandem mass spectrometry (UHPLC QqQ MS/MS) strategy, 16 representative active components from six batches of BLCs were simultaneously determined. Network pharmacology analysis further revealed that the active components included 5′‐adenylate, guanosine, adenosine, cordycepin, inosine, 5′‐guanylic acid, and l‐lysine. Targets with higher connectivity included AKT1, MAPK3, RAC1, and PIK3CA. The signaling pathways primarily focused on thyroid hormone regulation and the Ras, PI3K/AKT, and MAPK pathways, all of which were intricately linked to inflammatory immunity and hormonal regulation. Molecular docking analysis corroborated the findings from network pharmacology, revealing that adenosine, guanosine, and cordycepin exhibited strong affinity toward AKT1, MAPK3, PIK3CA, and RAC1. Overall, this study successfully elucidated the material basis and preliminary mechanism underlying BLC's intervention in thyroiditis, thus laying a solid basis for further exploration of its in‐depth mechanisms. [ABSTRACT FROM AUTHOR]

Inkjet printing technology has broad application prospects in the manufacture of optoelectronic devices due to its advantages of mask‐free and high material utilization. However, the coffee ring effect during printing can make the morphology non‐uniform and has not been thoroughly explored. In this work, we used a high‐precision in‐situ inkjet printing system to print low‐viscosity perovskite precursor inks on substrates to generate color‐converting films. The viscosity of the perovskite precursor solution was improved by changing the ratio of the 5‐AVABr additive, coupled with the choice of DMF with a higher boiling point as the solvent, which greatly reduced the evaporation of the solvent at the edge of the droplet, driving the formation of Marangoni flow which can result a uniform surface of droplets, culminating in a microarray of coffee‐free rings. Notably, the perovskite can be crystallized in situ during printing without additional annealing, relying on a pumping system to assist the solvent evaporation. With the additive, the photoluminescence quantum yield of the film increased to 39%. The size of each pixel in microarrays was controlled to be less than 60 μm and 400 pixels per inch (PPI) is realized. Our work paves the way for large‐area, high‐efficiency production of perovskite color conversion films. [ABSTRACT FROM AUTHOR]

Metal halide perovskites (MHPs) have excellent optical properties such as good color purity, high photoluminescence quantum efficiency and low manufacturing cost. Inkjet printing （IJP） is a powerful technique to achieve high‐density pixelated perovskite microarrays. During the IJP process, the substrate hydrophobic and the post‐processing conditions have a great impact on the morphological and optical properties of the microarrays. In this work, we study the effect of substrate hydrophobicity as well as the post‐processing conditions on the IJP perovskite microarrays, and successfully prepare perovskite microarrays with 4 μ m of thickness and good morphology. The microarrays with 45μm diameter exhibit high photoluminescence quantum yield (PLQY) of 41%. [ABSTRACT FROM AUTHOR]

Component engineering and quantum confinement engineering approaches are commonly used to prepare blue perovskite quantum dots (PQDs). From a component engineering perspective, the hybrid halide (Br and Cl) perovskites can adequately perform bandgaptailoring and the as-obtained spectra could cover the entire blue light range. However, the mixed halide PQDs are prone to lattice mismatch and phase separation. In addition, the low formation energy of Cl vacancies in perovskites tends to form Cl vacancies within the band gap, leading to deeper defect energy levels and significantly nonradiative recombination. Small size PQDs with single halide (Br), such as CsPbBr3 with a size of ≈ 4 nm, exhibit pure blue emission due to quantum confinement effects, which can avoid the phase separation and the issue of Cl vacancies. However, current methods are difficult to form small quantum dots of uniform size, which results in a very wide linewidth. In this paper, a strategy is designed to accurately and controllably reduce the size of CsPbBr3 PQDs. With the post-treatment of the CsPbBr3 PQDs, the emitting color gradually changed from green to blue, and the QDs sizes are reduced from 12 nm to 3 nm. Finally, the PQDs exhibit the stable spectra with a range of 520 nm to 450 nm and highly reproducible PLQY of 60%. Correspondingly, the full width at half maximum （FWHM） is reduced from 27 nm to 15 nm. This strategy provides a new idea for the synthesis of blue-emitting PQDs and provides a research basis for further realization of efficient and stable PQDs and subsequent devices. [ABSTRACT FROM AUTHOR]