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 253 for “"silicon-based"”.
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Silicon-based tunable optical filters
… and the characterization of a new class of silicon-based tunable optical filters. For this purpose a Fabry-Perot structure was chosen and implemented as a thin-film interference filter. The filter layers were configured as a self-supporting square membrane with side lengths of a few hundred …
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Computational Approaches to Silicon-Based Nanostructures
… for the solution of Schrodinger's equation based on Fast Fourier Transforms is described. Using this simulation method, it becomes possible to solve Schrodinger's equation in the one band approximation for arbitrary band structures, putting a more complete description of high energy states …
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Computational approaches to silicon based nanostructures
… should be possible to operate a quasi-monomode silicon based quantum wire at room temperature. Finally, a full-band approach for the solution of Schrodinger's equation based on Fast Fourier Transforms is described. Using this simulation method, it becomes possible to solve Schrodinger's equation …
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Novel materials for silicon based photonics
… Limited by material intrinsic properties, silicon alone cannot realize all the above mentioned functions. The development of silicon photonics has found its way through exploiting novel materials as hybrid platforms to manufacture various devices and systems. In this thesis, we focus on the …
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Silicon-based organic and inorganic polymers
… of the gels. A catalyst-free sol-gel process, based on tetramethyl orthosilicate (TMOS), the most reactive silicon tetra alkoxide in the series, was developed. The catalyst-free route provides an optimum reaction environment for the synthesis of organic-inorganic materials through …
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Chemical Application of Silicon-Based Resonant Microsensor
… Among these, mass-sensitive chemical sensors, based on cantilever beams or surface acoustic devices, have shown substantial promise in gas-phase applications. In a liquid environment, the resonant microstructures typically suffer from high damping, which negatively affects the sensor …
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Active sensing in silicon-based MEMS resonators
… sensing. This thesis explores FET-sensing in Si-based MEMS resonators with dielectric and piezoelectric materials for design of fully unreleased CMOS-integrated resonators for multi-GHz frequency applications. Monolithic integration of Si-based MEMS resonators into CMOS is critical for commercial …
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A nanostructured porous silicon based drug delivery device
… electrically-addressable, porous structure-based drug delivery device for the controlled release of therapeutic proteins and peptides, are described in this thesis. <br/><br/>The initial prototype microdevice design incorporates a porous polysilicon (PPSi) structure as a drug reservoir. Two …
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Potential applications of a toughened silicon-based alloy
Silicon has long been used as an alloying element in various metal alloys, in engineered ceramics, and in the semiconductor industry. However, due to its intrinsic low fracture toughness, it is generally perceived as a poor choice of material for mechanical applications. This study explores some …
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Silicon rich nitride for silicon based laser devices
Silicon based light sources, especially laser devices, are the key components required to achieve a complete integrated silicon photonics system. However, the fundamental physical limitation of the silicon material as light emitter and the limited understanding of tli~ excitation mechanism of Er in …
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Silicon-based Microwave/Millimeter-wave Monolithic Power Amplifiers
… the 30 and 60 GHz ranges), and utilizing silicon-based technology for reduced-cost monolithic millimeter integrated circuits (MMIC), for applications such as WLAN, inter-vehicle communication (IVC) automotive radar and local multipoint distribution system (LMDS). Although there has been a …
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Integration of ferroelectric thin films into silicon based microsystems
… the integration of ferroelectric thin films into silicon based microsystems. Therefore, PZT thin films have been deposited on platinum coated silicon substrates by chemical solution deposition (CSD) and are characterized regarding their electrical and electromechanical properties. It has been …
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Silicon-based pH sensor for biological and environmental applications
… Zhejiang University in China, we fabricated a silicon pH sensor, with polydimethylsiloxane (PDMS) fluidic channels for solution delivery and testing. Particularly for biological and environmental applications, the range of pH sensing is confined to 6 to 8. The fabricated device used n-type …
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Photonic Integrated Circuit Packaging Using Silicon Based Optical Interconnects
… bottleneck in the effort to seamlessly integrate silicon photonic devices - a technology capable of handling high data rates for next generation data center telecom applications. In this thesis, novel silicon based optical couplers capable of low loss, robust connections from an optical fiber to a …
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A silicon based regeneration electrode for implantation in amphibia
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1981.
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Silicon-based microfabricated droplet-microfluidics electrospray emitter for neurochemical sensing
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-12-01
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Surface reaction mechanisms during the atomic layer deposition of silicon-based dielectrics
… (>95%) atomic layer deposition (ALD) of Si-based dielectric films for applications such as sidewall spacers in multiple patterning. In this work, we have primarily focused on understanding the surface reaction mechanisms during the ALD of Si-based dielectric films using in situ attenuated …
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Cross-Sectional Scanning Tunneling Microscopy of Silicon-Based Heterostructures Andp-N Junctions
… cross-sectional STM to the characterization of silicon-based device structures. Several difficulties have been overcome in the process of developing this new structural characterization method. A V-groove cleaving technique has been developed to help produce atomically-flat cleaved Si(111) …
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Silicon-Based Molecular Nanotechnology: Fabrication and Characterization With the Scanning Tunneling Microscope
… A fully compatible electrical contacting scheme based on p-n junctions will be presented. Efficient STM potentiometric location of these p-n junctions suggests their additional use as alignment markers. Beyond outlining advances in molecular nanoelectronics, this thesis will also draw connections …
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