Manufacturing
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SpectroGen: A physically informed generative artificial intelligence for accelerated cross-modality spectroscopic materials characterization
Artificial intelligence (AI)-driven materials discovery offers rapid design of novel material compositions, yet synthesis and characterization lag behind. Characterization, in particular, remains bottlenecked by labor-intensive experiments using expert-operated instruments that typically rely on electromagnetic spectroscopy. We introduce SpectroGen, a generative AI model for transmodality spectral generation, designed to accelerate materials characterization. SpectroGen generates high-resolution, high-signal-to-noise…
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Universal Spectral Transfer with Physical Prior-Informed Deep Generative Learning
Spectroscopy is a powerful analytical technique for characterizing matter across physical and biological realms1-5. However, its fundamental principle necessitates specialized instrumentation per physical phenomena probed, limiting broad adoption and use in all relevant research. In this study, we introduce SpectroGen, a novel physical prior-informed deep generative model for generating relevant spectral signatures across modalities using…
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Porous sheets
A method of preparing a porous sheet includes mixing a matrix material dispersion including a matrix material dispersed in a first dispersion medium with a microorganism dispersion including microorganisms in a second dispersion medium, to form a mixture. The first and the second dispersion media are removed from the mixture to form a matrix sheet,…
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Biotemplating pores with size and shape diversity for Li-oxygen Battery Cathodes
Synthetic porogens provide an easy way to create porous structures, but their usage is limited due to synthetic difficulties, process complexities and prohibitive costs. Here we investigate the use of bacteria, sustainable and naturally abundant materials, as a pore template. The bacteria require no chemical synthesis, come in variable sizes and shapes, degrade easier and…
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Cooperative enhancement of the nonlinear optical response in conjugated energetic materials: A TD-DFT study
Conjugated energetic molecules (CEMs) are a class of explosives with high nitrogen content that posses both enhanced safety and energetic performance properties and are ideal for direct optical initiation. As isolated molecules, they absorb within the range of conventional lasers. Crystalline CEMs are used in practice, however, and their properties can differ due to intermolecular…
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Effect of Transition Metal Oxide Cathodes on the Oxygen Evolution Reaction in Li–O2 Batteries
Li–oxygen batteries could provide energy density that is up to five times greater than that of state-of-the-art Li-ion batteries. However, Li–oxygen cell rechargeability is limited by cathode passivation due to nonconductive discharge products. Despite efforts to efficiently oxidize these products, oxygen recovery remains poor at potentials where cell constituents are stable. Transition metal oxide (TMO)…