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 “"large-scale fabrication"”.
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Large-scale fabrication and assembly of carbon nanotubes via nanopelleting
… is predicated on the development of robust large-scale manufacturing techniques. There remain, however, few feasible methods for the large-scale handling of aligned and geometrically uniform carbon nanotubes (CNTs), which has limited successful commercial applications to date. This thesis …
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Demonstrating visibly transparent solar cells and photodetectors
The fabrication of inorganic semiconductor devices, such as silicon solar cells and photodetectors, is despite significant research still expensive and energy intensive. Especially for solar cells, high upfront costs are a limiting factor for large-scale fabrication and implementation. Organic …
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2d Material Inks for Printed Electronics
… with printing is an emerging, cost-effective and large-scale fabrication strategy of their devices. However, successful scale-up and adoption of printing as an ubiquitous fabrication method has been limited due to the lack of diversity in the available printing methods and materials. Since 2012, …
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Control of a semiconductor dry etch process using variation and correlation analyses
… at Analog Devices, Inc., a company that runs large-scale fabrication sites in the Boston area. This thesis focuses on spatial and run-to-run variation across multiple measurement sites on a wafer and validates the assumptions of normality and correlation between sites within a wafer in order …
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Meniscus Controlled Three-Dimensional Nanofabrication
… because of their potential applications in nanoscale devices. Numerous synthesis techniques have been developed for large-scale fabrication of nanostructures. However, most of these techniques lack precise control over the placement and shape of the nanostructures. This dissertation describes …
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Condensation heat transfer on nanoengineered surfaces
… these phenomena, it was recognized that wide-scale implementation necessitates a surface that can be mass-produced at an industrial scale. To this end, anodized metal oxide surfaces were pursued as candidate condenser materials. First, a study was performed to determine the precise conditions …
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Optomechanical anisotropy in nanoengineered polymer photonic crystals
… crystal structures have been fabricated on a large scale, through a method of shear induced self-assembly of 200nm monodisperse, polymer spheres with a core-shell structure. Determination of the assembly geometry through light diffraction experiments reveals a highly symmetric structure of …
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Analytics-Driven Cooperative Multi-Robot Additive Manufacturing: Advancing Efficiency and Quality
… of articulated manipulators to revolutionize large-scale fabrication; however, the transition from single robot to cooperative multi-robot and multi-head systems introduces complex, coupled decisions in decomposition, placement, and path planning under time, energy, quality, strength, and …
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Getting under your skin. Development of wearable devices for improved non-invasive diagnostics
… could potentially be extended for commercial scale fabrication. First, I developed a high spatial resolution electromyography electrode array consisting on 16 electrodes minimally separated that can record muscle activity with sufficient accuracy to observe the electrical activation of the …
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THE ROLES OF MATERIAL, SURFACE, & MICROSTRUCTURAL EFFECTS IN DEVELOPING CERAMICS FOR ENERGY APPLICATIONS
… the porosity of SOFC anodes is essential for large scale fabrication of fuel cells and improving their performance and reliability. A microstructure featuring a hierarchal porosity was able to improve the performance of SOFC anodes, especially at lower temperatures and fuel ratios. …
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Nanoparticle Encapsulation and Aggregation Control in Anti-reflection Coatings and Organic Photovoltaics
… (OPVs). Ionic self-assembled multilayers (ISAMs) fabrication of poly(allylamine hydrochloride) (PAH) and silica nanoparticles (SiO2 NPs) results in highly-transparent, porous ARCs. However, the ionic bonding and low contact area between the film constituents lack sufficient mechanical and chemical …
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Interfacial Properties of Graphene for (Opto)Electronic Devices
… of the most promising techniques to connect nanoscale devices. Despite the extensive research on molecular communication presented in the literature, the consequences of the interface between real transceiver topologies and channels are usually ignored, creating a significant mismatch between …
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Anharmonic Acoustic Technique for Detection of Surface-bound Particles
… problem of non-specific interactions. This is largely due to the presence of weak electrostatic and Van der Waals forces between the receptor and the non-target substances in the analyte that are not easily dissociated in practice. Most existing detection techniques are unable to probe the …
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General Device Integration Strategies for Two-Dimensional Materials
… properties of 2D layered materials (2DLM), no large scale commercial application has been achieved so far. The central challenge hereby is the scalable manufacture of these materials. While mechanical exfoliation, also famously known as the scotch-tape method, leads to materials of extremely …
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Scalable Fabrication of High Efficiency Hybrid Perovskite Solar Cells by Electrospray
… solution-based methods. In contrast, fabrication of silicon solar cells requires high-vacuum, high-temperature, and energy intensive processes. The combination of excellent opto-electrical properties and cost-effective manufacturing makes hybrid perovskite a winning candidate for solar …