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Showing 1 to 20 of 126 for “"Active Materials"”.
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Active materials in photonic crystals
I analyze new phenomena arising from embedding active materials inside of photonic crystal structures. These structures strongly modify the photonic local density of states (LDOS), leading to quantitative and qualitative changes in the behavior of active materials. First, I show that the emission …
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Ultrasensitive Biodetection based on Plasmonically-active Materials
… plasmon resonance (LSPR) of plas-monically active materials (e.g. “plasmonic patch”, “plasmonic fluor”), and show that plasmon-enhanced fluorescence can vastly improve the sensitivity of a broad variety of bioanalytical meth-ods, such as fluorophore-linked immunosorbent assays (FLISA), …
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Redox-active materials for electrochemically-mediated separations
… the discovery, development, and application of materials for separations. Electrochemical approaches are an attractive alternative due to the innate propensities of redox-active species for modular design, molecular recognition, reversible operation, and lower energetic requirements, all of …
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Modeling effects of microstructure for electrically active materials
… and kinetic equations for electrically active materials, particularly for rechargeable lithium-ion batteries and piezoelectric and electrostrictive microstructures. In both cases, the finite element method is applied to account for the effects of microstructure. Other derived equations …
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Design and Development of Damage-Tolerant Active Materials
… However, these technologies often require materials that can cyclically absorb, convert, and release a significant amount of free energy during service, which can result in dynamic behaviors similar to metabolism in biological systems. Such “active” materials encompass a wide range of …
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Guided growth : design and computation of biologically active materials
… matter and energy, and even produce structural materials such as cellulose. These materials are renewable, self-assembling, self-healing, and biologically active. Our rapidly growing ability to re-program living cells to produce materials they would not produce in their natural state presents …
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Mechanical counter-pressure space suit design using active materials
… This research effort focuses on the novel use of active material technologies to produce a garment with controllable compression capabilities to address these problems. We the describe the modeling, development, and testing of low spring index (C = 3) nickel titanium (NiTi) shape memory alloy …
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Single molecule studies of charge transport in organic redox-active materials
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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Characterization of redox active materials to enable electrochemical separations through faradaic deionization
… remove specific ions. FDI employs redox active materials with higher charge storage capacity, high selectivity, and offers low energy consumption for the separation process by operating within a moderate potential window. This work is focused on fundamental characterization of materials …
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Organic Template-Assisted Synthesis & Characterization of Active Materials for Li-ion Batteries
… Vehicles (PHEV) to improve fuel efficiency. Materials currently used for Li-ion batteries are LiCoO2 (LCO) and graphite—the first materials successfully integrated by Sony into Li-ion batteries. However, due to the high cost and polluting effect of cobalt (Co), and the low volumetric capacity …
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A Study of the Adsorption of Surface Active Materials by Differential Capacity Measurements
Made available in DSpace on 2014-12-05T19:36:46Z (GMT). No. of bitstreams: 1 0025257.pdf: 5669150 bytes, checksum: c6c2f1087f3dc5325b5ba2840d6b30ff (MD5) Previous issue date: 1957
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Model to Evaluate the Aerodynamic Energy Requirements of Active Materials in Morphing Wings
… of morphing wings and the requirements for the active material actuators in the wings.
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Aktív anyagok szerepe a rozmaring ízesítésű napraforgó olajban = The role of active materials of rosemary in sunflower oil
Kutatómunkám célja az immerzióval, azaz a fűszer áztatásával előállított rozmaring ízesítésű napraforgó olaj aromakarakterének és fontosabb kémiai tulajdonságainak elemzése volt. Az elvégzendő feladatokat az alábbi kérdések megválaszolása érdekében jelöltem ki: 1. Hogyan változik az ízesített …
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A bio-inspired approach to increase device-level energy density
… focused on improving the properties of the active materials that directly store energy. This research has resulted in active materials with higher specific capacity, increased the voltage of batteries in order to store more energy per electron, and lead to the development of electrolytes and …
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SURFACE MODIFICATION TO IMPROVE THE ELECTROCHEMICAL PERFORMANCE OF CATHODE MATERIALS FOR LITHIUM-ION BATTERIES AND SODIUM-ION BATTERIES
<p>"The specific capacity of active materials as well as their cycling stability are the main limiting factors for the performance of lithium-ion batteries (LIBs) and sodium-ion batteries (SIB). Atomic layer deposition (ALD) is considered as a promising surface modification method to enhance the …
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Deep understanding of degradation in lithium ion batteries through experimental and first-principles study
… significantly accelerated the development of active materials. However, the key challenge is that electrode materials suffer from degradation, which include transition metal dissolution, solid electrolyte interphase (SEI) layer formation, and mechanical fracture. To address these issues, …
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Synthesis and characterization of various ruthenium small molecules and metallopolymers for potential use in photovoltaic devices and luminescence properties of N-heterocyclic carbenes and trifluoro methylated tris(pyrazolyl)borate silver (I) acid-base adducts
… complexes toward possible utilization as active materials for solar cells. Such complexes have been found to be good "black absorbers" with solid-state absorption that spans the entire visible region into the near-infrared, representing an impressive overlap with the solar radiation that …
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Investigation of non-intercalation electrode materials for next-generation batteries
… intensively as alternatives to intercalation materials as they can provide 2 to 5 times larger gravimetric capacities. However, there are many challenges facing the practical application of conversion electrodes. In this dissertation, the problems of conversion and alloying electrodes are …
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Virus-enabled design of high-performing, three-dimensional nanomaterials for electrochemical energy applications
… storage and conversion. Developing electrode materials for electrochemical devices requires precision and synthetic control over a number of factors, including surface morphology, nanostructure, and distribution of active materials. To this end, my thesis work investigated strategies to …
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Physics-based and data-driven modeling of multi-active material electrode batteries
… to hybrid electrodes with blends of two or more active materials to enhance battery performance. Leveraging best properties of each material, these multi-active material electrodes open a new and complex design space that could be more efficiently explored through physics-based simulations, …
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