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 15 of 15 for “"semiconductor interfaces"”.
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Characterization of Diamond-Semiconductor Interfaces
The extremely high thermal conductivity of diamond thin films makes them an ideal candidate for heat spreaders that can be integrated with electronic devices. By more effectively dissipating the heat generated during operation device dimensions can be shrunk increasing yield, performance losses due …
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Electronic and Optical Properties of Thin-Film Superconductors and Superconductor -Semiconductor Interfaces
Application 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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Electronic and optical properties of thin-film superconductors and superconductor - semiconductor interfaces
… metal and especially superconductor-semiconductor interfaces increased in the basic research area. The superconducting proximity effect, known for about four decades, still poses many unanswered questions. Use of a semiconductor instead of a metal broadens the possibilities: …
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Investigation of the Interface Recombination Velocity of Native Oxide/iii-V Semiconductor Interfaces
… established results on unoxidized material interfaces.
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Theoretical investigation of energy alignment at metal/semiconductor interfaces for solar photovoltaic applications
… types of solar cells. We mainly focus on metal-semiconductor interfaces. In the CdSe study, we find that not all surface states serve to pin the Fermi energy. In our organic-metal work, we explore the complexity and challenges of modeling these systems. For example, we confirm that aromatic …
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MULTISCALE SIMULATIONS OF THERMAL TRANSPORT IN GRAPHENE-BASED MATERIALS AND ACROSS METAL-SEMICONDUCTOR INTERFACES
The rapid advance in modern electronics and photonics is pushing device design to the micro- and nano-scale, and the resulting high power density imposes immense challenges to thermal management. When device size shrinks to the same order of or even below the wavelength or mean-free-path of heat …
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Interfacial Studies of Buried Semiconductor Surfaces
… has been used to study the structures of various semiconductor interfaces. Investigations have been performed on noble-metal/Si(111) and C60/semiconductor systems. The bulk of the noble-metal/Si(111) work has centered on the Ag/Si(111) system where the structure of the interface is dependent on …
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Interfacial studies of buried seminconductor surfaces
… has been used to study the structures of various semiconductor interfaces. Investigations have been performed on noble-metal/Si(lll) and C6ofsemiconductor systems. The bulk of the noble-metal/Si(lll) work has centered on the Ag/Si(lll) system where the structure of the interface is dependent on …
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Study of surface modifications for improved selected metal (II-VI) semiconductor based devices.
Metal-semiconductor contacts are of fundamental importance to the operation of all semiconductor devices. There are many competing theories of Schottky barrier formation but as yet no quantitative predictive model exists to adequately explain metal-semiconductor interfaces. The II-VI compound …
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Synthesis and characterization of TiO2 nanotube Schottky diodes
Metal-semiconductor interfaces on one-dimensional (1D) nanostructures represent crucial building blocks for next-generation nanoelectronics. Over the past two decades, chemically synthesized titanium dioxide nanotubes (TiO2-NTs) have gained a considerable amount of interest due to their high …
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Spectroscopic characterisation of high dielectric constant materials on semiconducting surfaces
In this work, various insulator/semiconductor interfaces on silicon, gallium arsenide (GaAs) and germanium have been studied by photoemission spectroscopy. Where possible, these interfaces were then tested electrically after the formation of capacitor structures. Each system presents its own unique …
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Characterization of nanoscale electronic materials using novel methods for scan probe microscopy
… researchers are exploring the use of novel semiconductors with unique nanoscale morphologies. To create processes to utilize the properties of new materials, there has been significant effort to better understand how these material’s electrical properties effect transistors in real devices. …
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Light scattering studies of organic field effect transistors
Organic semiconductors hold a great promise of enabling new technology based on low cost and flexible electronic devices. While much work has been done in the field of organic semiconductors, the field is still quite immature when compared to that of traditional inorganic based devices. More work …
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Elektronische und chemische Eigenschaften von Grenzflächen und Oberflächen in optimierten Cu(In,Ga)(S,Se)2 Dünnschichtsolarzellen
In der vorliegenden Arbeit wurden Untersuchungen an Dünnschichtsolarzellen auf der Basis von Cu(In,Ga)(S,Se)2, der heute vielversprechendsten Dünnschichttechnologie, durchgeführt. Für eine weitere Optimierung der Zellen ist ein detailliertes Verständnis ihrer chemischen, elektronischen und …
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BRIDGING EXPERIMENT AND THEORY IN PORPHYRIN CHEMISTRY: DEVELOPING MATERIALS FOR SENSING, OPTICAL, AND CATALYTIC TECHNOLOGIES
… 3) focused on the development of porphyrin–semiconductor hybrid materials for volatile organic compound (VOC) sensing. Building on previous collaborative studies with Prof. Cappelletti’s group (University of Milan), in which ZnTPP and its perfluorinated analogue ZnTPPF20 had been compared, …