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 264 for “"Current-voltage"”.
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The current-voltage characteristics of linear chains of submicron Josephson tunnel junctions
The recent experimental results on granular superconducting films have suggested an universal sheet resistance threshold of 6.4 k$\Omega$/square, below which all films become superconducting with decreasing temperature, and above which all films become insulating with decreasing temperature. At the …
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An analysis of the sociotechnical transition process from the existing centralised alternating current voltage electrical system in the UK to one where distributed direct current voltage is used to meet the energy needs of the built environment
… the potential sociotechnical transition of the current UK centralised alternating current (AC) electricity system to one where distributed direct current (DC) systems may proliferate. The development of the new distributed DC system has the potential to address a number of global challenges …
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Characterization of the Current-Voltage Relationships of the Toad Urinarybladder, Toad Colon, Frog Skin and Turtle Urinary Bladder
Made available in DSpace on 2014-12-14T13:39:40Z (GMT). No. of bitstreams: 1 7714980.pdf: 5008050 bytes, checksum: 69a3aa13a5bf4aee3d9fdebbde9dfb38 (MD5) Previous issue date: 1977
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High vacuum system and instrumentation for measuring the derivative of the current-voltage characteristic of a Langmuir probe
… for obtaining the first derivative of the current-voltage characteristic of a Langmuir Probe, which is needed to determine the electron speed distribution in rare gases. The theory behind using a lock-in amplifier differentiator to obtain the derivative of the I-V characteristic of a …
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Redox-Active Trivalent Metallosurfactants With Low Global Symmetry For Molecule-Based Electronics: Spectroscopic, Electrochemical, And Amphiphilic Properties Of New Molecular Materials For Current-Voltage Measurements In M|lb-Monolayer|m Devices
… molecules are promising candidates to study the current rectification behavior. In order to address this phenomenon, a series of ligands with phenolate moieties and, their gallium(III), iron(III), and manganese(III) complexes with [N2O3] and [N2O2] coordination environments were synthesized and …
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Electrical properties of metal semiconductor contacts - metals on MoS2: a case study
… and Schottky-Mott rules are discussed. The current-voltage measurement and capacitance-voltage measurement are analyzed considering the role of the work function. We mainly focus on metal semiconductor contacts on molybdenum disulfide (MoS2). The properties of bulk and monolayer molybdenum …
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Simulation of Electrical Characteristics in Oxyfuel Flame Subject to An Electric Field
… model to study ion and electron transport and current-voltage characteristics inside a methane-oxygen flame. By finding the relationship between current-voltage characteristics and critical parameters,such as standoff, fuel oxygen ratio, and flow rate, a control algorithm could be implemented …
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Optically Powered Logic Transistor
… to be used for digital logic circuits. Most current logic circuits are based on MOSFETs. The new logic device uses some of the same operating principles, but also relies on optical illumination to provide input power. In order to obtain the desired current-voltage behavior of the new device, …
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Engines, their tuning, ignition systems, and maintenance : A dissertation submitted in partial fulfilment of the Diploma in Farm Management at Lincoln College
Contents: Introduction to ignition systems - Current - Voltage - Resistance - Circuits - Ignition coil - Polarity - Tuning a four stroke water-cooled motor - Ballast resistors - The dwell meter - Care & maintenance of diesel engines - Injector faults - Fault finding.
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Electronic and Optical Properties of Thin-Film Superconductors and Superconductor -Semiconductor Interfaces
… of an external ac field results in steps in the current-voltage characteristics at Vn = nho/2e. Experimental parameters of a highly-doped n+-InAs are used to obtain estimates for future experiments to be conducted to test the predictions of the model.
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Simulation of polymer solar cell characteristics by amps-1d
… focuses on the performance and comparison of current-voltage (I-V) simulations of indium oxide (In_2O_3) and tin oxide (SnO_2) (ITO) and poly (3,4-ethylenedioxythiophene): poly (styrenesulfonate) (PEDOT: PSS) as transport layer. The other comparison is between single polymeric solar cell and …
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Synthesis and electrical property measurements of individual layered transition metal dichalcogenide nanotubes and nanowires
… 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 linear, nearly symmetric, and nearly rectifying for these systems. The currents passed through these …
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Temperature Characterization of Colloidal Quantum Dot Light Emitting Diodes
… the fundamental relationships between current, voltage, and luminance by which these devices operate. These electrical characteristics reveal insights into the operation of these devices and the behavior of charge carriers. Additionally, temperature-dependent electrical measurements can …
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Microdischarge Devices Fabricated in Silicon
… ultrasonic milling, the microdischarge. The current-voltage characteristics and spectra of the devices were recorded. Operation of microdischarge devices in the excimer species XeI, XeO, and I 2 was investigated. Arrays of microdischarge devices were fabricated and tested using a new geometry …
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Development and Characterization of Intermediate-Band Quantum Wire Solar Cells
… structure was optimized. For all the structures, current-voltage and external quantum efficiency measurements were performed to examine the effect of absorption and power conversion of the intermediate band solar cell (IBSC). Time-resolved photoluminescence measurements showed that δ-doping can …
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Intrinsic degradation mechanisms of barium titanate based multilayer ceramic capacitors
… goals of this research were: 1) to determine current-voltage, activation energy and leakage current characteristics for such capacitors. 2) to investigate how these characteristics change with degradation; 3) to investigate possible correlations between observed behavior and capacitor …
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Impedance characteristics and grain boundary effects in titanate-based multilayer ceramic capacitors
… Electrical measurements were made so that current-voltage curves and impedance plots could be constructed. It was found that the current-voltage curves of new COG and X7R multilayer ceramic capacitors are both ohmic at low voltages and super-ohmic at intermediate voltages. Ohmic behavior …
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Electrolyte-gated graphene field-effect transistors : modeling and applications
… properties necessary for circuit design such as current-voltage characteristics, transconductance, output resistance, and intrinsic gain. The model can also be used to optimize the design of EGFETs. For example, simulated and experimental results show that avoiding the practice of partial channel …
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Planar Packaging and Electrical Characterization of High Temperature SiC Power Electronic Devices
… high-temperature SiC power electronic devices. Current-voltage measurements were conducted on as-received and packaged SiC power devices. The planar structure was introduced and developed as a substitution for traditional wire-bonding vertical structure. The planar structure was applied to a …
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