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.
Results
Showing 1 to 20 of 24 for “"low-cost fabrication"”.
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Design of multiple constriction ratio microfluidic channels for 3D insulator based dielectrophoretic chips
… area to generate gradients of electric fields allows a device to be made without electrode arrays and at a cheaper cost. The possibility of making devices with multiple constrictions within them is undertaken using micromachining and adhesion methods. The micromachining of multiple constrictions …
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Performance assessment of Au SERS substrates prepared by deposition of Au nanoparticles on screen-printed SiO2 particle films
… and rapid trace analysis. Screen-printing, a low-cost fabrication method, has been proposed as a reproducible and affordable approach for the preparation of 3D SERS-active substrates. In this work, a new solution-based film fabrication method is proposed for the preparation of Au@SiO2 3D …
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Preliminary investigation on optical cavity-based biosensor using double-sided tape.
… biosensor capable of biomarker detection using low-cost fabrication methods, components, and a differential detection method. This biosensor laid the foundation for the creation of a double-sided tape-based biosensor to make fabrication three times faster and 96% cheaper. Double-sided tape …
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Synthesis of Single Wall Carbon Nanotube Arrays and Their Application in Single Molecular electronics
… of these challenges is the lack of high yield, low cost fabrication technique. Carbon nanotubes are new materials with great electronic conductivity and small diameter, etc. They are great candidate for the electrode of single molecular electronic devices. A great effort of this thesis has been …
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Micro-forging technique for rapid, low-cost manufacture of lens array molds and its application in a biomedical instrument
… sciences has driven the need for accessible, low-cost fabrication techniques. Most micro-lens fabrication processes are unsuitable for applications requiring 100% fill factor, apertures around 1 mm, and scalability to large areas with millions of lenses. A flexible, low-cost mold fabrication …
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Softwear: A Flexible Design Framework For Electronic Textile Systems
Because of their ubiquity and low cost fabrication techniques, electronic textiles (e-textiles) are an excellent platform for pervasive computing. Many e-textile applications are already available in the commercial, military, and academic domains, but most are very highly specialized and do not …
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Model for porous alumina template formation
… emerged as an important material system for the low cost fabrication of semiconductor and metal nanostructure arrays. This material system utilizes natural self-organization for the creation of periodic arrays of nanoscale structures. The underlying principle is that when aluminum is anodized in …
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patial Control of the Conductivity of Poly(3,4-ethylenedioxythiopehe): Poly(styrenesulfonate) Thin Films
… suitable for implementation into a roll-to-roll fabrication process which is critical for taking full advantage of the benefits of polymeric electronic materials such as flexibility and low cost fabrication.
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Mesoporous ZnO/TiO2 nanowire heterojunction photo-anodes for quantum-dot sensitised solar cells
… tunable bandgaps of quantum dots (QDs), which allow for broad spectral absorption and efficient light harvesting across the solar spectrum. Their low-cost fabrication such as solution processing and printing techniques, make them economically attractive for large-scale production and flexible …
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Stimulated Brillouin scattering effects and suppression techniques in high power fiber amplifiers
… constraints and limitations for utilization of low cost fabrication techniques. The final model, validated and adjusted with empirical results, supports the suppression of SBS in standard ytterbium-doped fiber amplifiers by over a decade.
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Langmuir Blodgett films of colloidal silicon quantum dots for hot carrier photovoltaics
… found on a promising path to achieve practical low-cost and high-efficiency third generation solar cells. The solution processability of colloidal QDs enables low-cost fabrication of various kinds of colloidal QDs solar cells. Moreover, favourable carrier dynamics are revealed in colloidal QDs, …
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Designing Plasmonic Materials And Optical Metasurfaces For Light Manipulation And Optical Sensing
… permittivity for different applications and the slow and expensive fabrication methods available to pattern sub-wavelength structures. We have also only touched the surface in exploring the innovative uses of metamaterials to solve world problems. In this thesis, we study the fundamental optical …
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Kelvin Probe Force Microscopy on Graphene Thin Films for Solar Cell and Biosensing Applications
… Oxide (ITO) electrodes in organic photovoltaics fabrication. Graphene platforms have also attracted interest in biological applications. However, large area graphene films are not yet widely commercialized because the fabrication techniques needed to prepare high quality graphene are expensive …
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Organic lasers and nanostructred organic films for hybrid integration
… applications owing to their potential for simple fabrication and availability of materials emitting across the whole visible spectrum. LEPs are already exploited commercially in the case organic light emitting diodes and their interesting properties for colour conversion and as laser gain material …
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Flexible Electronics Based on Solution Processable Organic Semiconductors and Colloidal Semiconductor Nanocrystals
… hold great potential for the large-area, low-cost fabrication of flexible electronics. Recent advances in flexible electronics have introduced new functional devices such as light-weight displays and conformal sensors. However, key challenges remain to develop flexible devices from …
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Architectures and system design for digitally-enhanced antenna arrays
… are used for the purpose of alleviating the high cost and complexity of sophisticated analog devices. Emergent trends in millimeter wave and low-terahertz circuit technology are enabling the prospect of physically small, yet electrically large antenna arrays for a host of exciting new …
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Planar groove gap waveguides
… machined Groove Gap Waveguide (GGWG), but in a low-cost fabrication technology that is readily integrated with surface mount components. The structure provides two DC isolated conducting planes, while still providing a low loss planar transmission medium. Simulation results demonstrate the …
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Fabrication and analysis of CIGS nanoparticle-based thin film solar cells
Fabrication and analysis of Copper Indium Gallium di-Selenide (CIGS) nanoparticles-based thin film solar cells are presented and discussed. This work explores non-traditional fabrication processes, such as spray-coating for the low-cost and highly-scalable production of CIGS-based solar cells. CIGS …
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Capacitive Touchscreen Sensors for the Measurement of Ions in Electrolytes
… with the conductivity of electrolytes below 100 μS/cm. This correlation is dependent on anion concentration and nearly independent of the measured cations for a positive electrode. Furthermore, a new approach is developed to fabricate simplified, affordable touchscreen-inspired ITO …
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A deep sea lab on a chip chemical sensor
… degradation/contamination, instrument size, cost and insufficient sensitivity.<br/><br/>New technologies allow the manufacture of Lab On a Chip (L.O.C.) devices that can be used as small, low-cost and low power sensors. There are numerous demonstrations of these devices in the laboratory …
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