Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"electrical property"”.
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Synthesis and electrical property measurements of individual layered transition metal dichalcogenide nanotubes and nanowires
… Electron beam lithography was used to make electrical contacts to the nanowires. Once the contacts were made, two point room temperature current voltage curves were recorded for MoS2, ReS2, and ReSe 2 nanotubes. The current voltage characteristics displayed I-V curves that were nearly …
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Fabrication of graphene-based resistive sensor for eschericia coli bacteria sensing
… known to have a biocompatibility and excellent electrical property. The E. coli bacteria used in this experiment were collected from domestic wastewater and commercial of E. coli strain no. ATCCC 25922. A biochemical test was performed to detect the presence of E. coli in wastewater. The …
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Atomic Layer Deposition of Vanadium Dioxide: Synthesis, Doping, and Device Applications
… the MIT characteristics, which defines the basic electrical property of the VO₂ films. A Ge-doping into VO₂ films by ALD has been achieved using a mixture of liquid precursors, elevating the transitional temperature of the VO₂ films into the temperature range of circuit applications. The Ge-doping …
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A malaria diagnostic system based on electric impedance spectroscopy
… RBC undergoes physiological changes including electrical property of cytoplasm and membrane. Detection of infected RBC is demonstrated as well as differentiation of micro-beads by surface charge density using EIS-based diagnostic system. Diagnosis based on EIS has merits over other diagnostic …
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Microstructural Evolution in Mocvd-Derived Tantalum-Doped Tin Dioxide Thin Films and Subsequent Property Changes
… of this study was to understand the structure-property relationship in the Ta-Sn-O material system. Microstructure of the films was characterized through x-ray diffraction (XRD), secondary ion mass spectroscopy (SIMS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), …
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Interfacial Structures of Oxides on GaAs
… phenomenon and physical interfacial structure property has been derived by HRTEM. A thin oxide epilayer on GaAs has been identified and proposed as the key factor to solve the surface dangling bond problem. X-ray photoelectron spectroscopy (XPS) and Auger data show that Gd rich in the interface …
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Graphene characterization and device fabrication: doping analysis, strains engineering towards terahertz radiation
… materials, graphene’s outstanding electrical, mechanical and optical properties have made many new devices possible. Its ultra-thin thickness makes both the fabrication and characterization of graphene-based device challenging. In my thesis, I will discuss different approaches to …
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Field solver technologies for variation-aware interconnect parasitic extraction
… intent. The effect of such variabilities on the electrical characteristics of both devices and interconnects must be accurately evaluated and accounted for during the design phase. In the last few years, there have been several attempts to develop variation-aware extraction algorithms, i.e. …
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Process Dependence of Defects and Dopants in Wide Band Gap Semiconductor and Oxides
… process dependence of Li configuration and electrical property of Li-doped ZnO on thermal treatment, the passivation and doping effect of implanted H in ZnO, the mechanical polishing induced defects and passivation effect of post-polishing diluted HF etching. DRCLS reveals an inverse …
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Hybrid light emitting diodes based on solution processed polymers, colloidal quantum dots, and colloidal metal nanoparticles
… thesis first investigates the impact of solvent property and evaporation rate on the polymer molecular chain morphology and packaging in device structures. Solvent is a key component to make the active material solution for spin coating fabrication process. Their impacts are observed and examined …
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Power Converters for Piezoelectric and Pyroelectric Materials
… by an applied electric field. As the essential property for dielectrics, the relationship between electric field and dielectric polarization, has been widely studied and used in the area of electrical engineering. Representative applications are insulators and electrical energy storage …
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Plasma Treatment of Zinc Oxide Thin Film and Temperature Sensing Using the Zinc Oxide Thin Film
… thin film dominate the market for their better electrical and optical properties. In this work, zinc oxide thin films were prepared by easy and low cost solution method with oriented crystal growth along (002) plane. To improve electrical and optical property of the fabricated zinc oxide thin …
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Array-based planar nanowire high electron mobility transistor
… controllability of NW position, uniformity of NW electrical property, and compatibility with planar processing. In this thesis research, a bottom-up planar-NW high electron mobility transistor (HEMT) technology was developed to overcome the above challenges. Uniform and scalable electrical …
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Thermal, Magnetic, and Electrical Properties of Thin Films and Nanostructures: From Magnetic Insulators to Organic Thermoelectrics
… instrumentation used in magnetic, thermal, and electrical property measurements of thin films and nanostructures. The understanding of trapped-flux induced artifacts in SQUID magnetometry of large paramagnetic substrates allows for the resolution of increasingly small moments. Using these …
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Fiber drawing : beyond the scaling paradigm
… a multiplicity of solid materials with disparate electrical, optical, and mechanical properties into a single fiber presents new opportunities for extending fiber applications. Different functional fiber devices have been fabricated with a thermal co-draw approach. In order to make the thermal …
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Flexible nano-memory device by zinc oxide nanorod arrays
… of device is closely related to the material’s property, electrical property of one-dimensional (1D) ZnO nanomaterial by experimental and theoretical approaches have been characterized. The results reveal that the electrical resistance has nonlinear length dependence in the single crystal ZnO …
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Developing high efficiency Cu2ZnSnS4 (CZTS) thin film solar cells by sputtering
… the microstructure of CZTS grains and, the electrical property of CZTS film such as carrier concentration and minority carrier lifetime, thereby influencing the CZTS solar cell efficiency. Secondly, the effects of sulfurization annealing atmosphere and post-heat treatment have been studied. …
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Design of aromatic thermosetting polyester composites for thermally stable devices
… scratches of composites. In addition, the first electrical property test is achieved on ATSP/glass fiber composite. The insertion loss is less than standard circuit board FR-4.
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Fabrication and Characterization of Silicon Rich Oxide (SRO) Thin Film Deposited by Plasma Enhanced CVD for Si Quantum Dot
… and less defects after chemical reactions. The electrical properties were not included in this thesis to directly show the advantages of PECVD materials due to the lack of doping gas in MW-PECVD, but the deposition details and the material characterization make the essential way to the …
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Correlation between structure, doping and performance of thermoelectric materials
… materials can convert thermal energy into electrical energy and vice-versa. They are widely used in energy harvesters, thermal sensors, and cooling systems. However, the low efficiency and high cost of the known material compositions limit their widespread utilization in electricity …
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