Dye-Sensitized Nonstoichiometric Strontium Titanate Core–Shell Photocathodes for Photoelectrosynthesis Applications
Not provided.
Materials Science↗
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Results for “core shell”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Implementation of a Core–Shell Design Approach for Constructing MOFs for CO 2 Capture
Not Available
36 MATERIALS SCIENCE↗
Enhanced Selective Oxidation of Ammonia in a Pt/Al 2 O 3 @Cu/ZSM-5 Core–Shell Catalyst
Not provided.
Chemistry↗
Composition-Defined Optical Properties and the Direct-to-Indirect Transition in Core–Shell In 1– x Ga x P/ZnS Colloidal Quantum Dots
Not Available
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Reversible loss of core-shell structure for Ni-Au bimetallic nanoparticles during CO[subscript 2] hydrogenation
Abstract not provided
Zhang, Xiaoben↗
Core–shell nanostructures: perspectives towards drug delivery applications
Nanosystems have shown encouraging outcomes and substantial progress in the areas of drug delivery and biomedical applications.
Kumar, Raj↗
Nanoscale core–shell structure and recrystallization of swift heavy ion tracks in SrTiO 3
It is widely accepted that the interaction of swift heavy ions with many complex oxides is predominantly governed by the electronic energy loss that gives rise to nanoscale amorphous ion tracks along the penetration direction.
36 MATERIALS SCIENCE↗
Reversible plasmonic switching in a graphene nanoresonator loaded with a core – shell quantum dot
A model of an all-plasmonic switch based on a graphene waveguide integrated with a stub nanoresonator loaded with a quantum dot is considered. Using the full-wave numerical simulation, it is shown that successive on/off switching of the control surface plasmon – polariton wave at the input of the waveguide leads to a change in the phase of the signal plasmon – polariton wave in the nanoresonator by π. This causes reversible switching of the device operation regime – from almost complete blocking to stable transmission of the signal plasmon – polariton wave through the waveguide. The effect is implemented at rates of ∼0.5 THz for infrared electromagnetic waves localised in a device with a switching region of 40 × 20 nm. (paper)
36 MATERIALS SCIENCE↗
Macrospin model of an assembly of magnetically coupled core-shell nanoparticles
Not Available
36 MATERIALS SCIENCE↗
Strain-induced polarization enhancement in BaTi O 3 core-shell nanoparticles
Not provided.
Materials Science↗
Solid-state laser refrigeration of core-shell polystyrene microspheres
Microlaser designs based on the coupling of whispering gallery modes (WGMs) with the upconversion processes which take place within lanthanide-doped nanoparticles (UCNPs) have been demonstrated and shown to have many valuable qualities, such as high Q factors and low lasing thresholds. One obstacle that these microlaser designs still face is the challenges caused by photothermal heating of the gain medium, which could be solved through the design of a radiation balanced microlaser. In this work, WGM microresonators composed of 5 µm diameter polystyrene spheres are fabricated with a layer of Yb3+-doped NaYF4 UCNPs in order to test if the anti-Stokes cooling properties of the UCNPs can cool the microresonator and its environment under laser irradiation. We find via calibrated mean fluorescence spectroscopy that the UCNPs can cool their local environment by as much as 23 °C and significantly reduce the heating of the aqueous environment surrounding the microresonator, showing promise for inclusion in a design for a radiation balanced microlaser.
whispering gallery modes, optical refrigeration, m↗
Extending Magnetic Core Shell Nanoparticle Extraction Technology to Cesium and Antimony Removal from Geothermal Brines in New Zealand - CRADA 440
Geo40 Limited has developed and deployed a process to remove silica from geothermal fluids and produce a high-margin specialty colloidal silica product comparable to market leaders. Geo40 now wishes to explore opportunities to extend their mineral extraction operations to other elements that are present in these brines. Geo40 has identified Cs present in Ohaaki brines at ppm level amounts that could be sold to known customers if it could be produced at an attractive price. With support from DOE’s Geothermal Technologies Office, a simple and highly cost-effective magnetic nanofluid method for extraction of rare earth elements (REEs) from geothermal brine solutions has been developed and demonstrated at the laboratory bench scale at Pacific Northwest National Laboratory (PNNL). Moselle Technologies has acquired a license to the background IP associated with this technology and wishes to foster commercial deployment by supporting applications of the technology beyond REEs, including Cs.
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗