On November 26, 2018, researchers from Oak Ridge National Laboratory received the Joule Award from Barbara Hoffheins of the National Nuclear Security Administration (NNSA) Office of International Nuclear Safeguards.
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![Next-generation fiber-reinforced composites may monitor their own structural health, detect damage, and issue early warnings. When enough electrically conductive fiber is embedded in a polymer matrix, the bulk composite becomes electrically conductive. Se](/sites/default/files/styles/list_page_thumbnail/public/Composite%20Graphic.jpg?h=972c50f2&itok=iddiFRKf)
Researchers utilized a roll-to-roll process to coat electrically conductive carbon fibers with semiconducting silicon carbide nanoparticles—demonstrating a scalable method to make reinforcing fibers for composite applications requiring strong
![Brillouin Light Scattering has revealed the presence of an interfacial layer that controls mechanical reinforcement. By fitting BLS data (red) with a continuum model (blue) the shear modulus of the interface was determined. Inset: The BE SPM work has enab Brillouin Light Scattering has revealed the presence of an interfacial layer that controls mechanical reinforcement. By fitting BLS data (red) with a continuum model (blue) the shear modulus of the interface was determined. Inset: The BE SPM work has enab](/sites/default/files/styles/list_page_thumbnail/public/Glassy%20Polymer%20Nanocomposites%20image%20for%20HL_0.png?itok=ZeKLVGfW)
Scientists have unraveled details of the mechanism of mechanical reinforcement in glassy polymer nanocomposites.1 Measurements in the interfacial layer ~2–4 nm around nanoparticles revealed that Young’s modulus, which defines the relationship between
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Misfit heterojunctions formed by van der Waals (vdW) epitaxial growth of one crystalline metal chalcogenide monolayer on another was demonstrated for the first time to form p-n junctions that exhibit a photovoltaic response.
![Multidimensional transient absorption microscopy data shows regions with either excitons (red) or free charge carriers (blue), but the majority of the image contains a mixture. Isolating the signatures of these distinct photoexcitations enables quantitati Multidimensional transient absorption microscopy data shows regions with either excitons (red) or free charge carriers (blue), but the majority of the image contains a mixture. Isolating the signatures of these distinct photoexcitations enables quantitati](/sites/default/files/styles/list_page_thumbnail/public/Spatially%20Resolving%20image%20resized.png?itok=inI52eDg)
Spatial localization of distinct photoexcited species were identified in light harvesting perovskite based materials using ultrafast transient absorption microscopy (TAM).
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