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 54 for “"Screen-printed"”.
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Screen-printed ion selective electrodes for soil ion detection
… The electrodes were fabricated by a combined screen printing and drop casting process, and the protocol, extraction solution, and reference potential stability were tuned to maximize ISE performance and repeatability. Using a mathematical model and supporting experiments, we verified that …
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Formation of screen-printed contacts on multicrystalline silicon (mc-Si) solar cells
… multicrystalline silicon (me-Si) solar cells use screen-printing process for depositing both the Ag paste based gridded front and Al based back (whole area) metal contacts.. This thesis relates to experimental and theoretical studies of contact formation mechanisms in silicon solar cells. …
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Electrochemical techniques for detection of Tnt and other explosives using disposable screen-printed carbon electrodes
… The use of a fast and inexpensive field screening technique can save time and money typically incurred during intensive laboratory analysis of clean samples; Screen-printed thick film electrodes are examined as voltammetric sensors for measurement of 2,4,6-Trinitrotoluene (TNT), and …
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Integrated design and manufacturing modeling of performance and variability for screen printed resistors in LTCC circuit technology
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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Performance assessment of Au SERS substrates prepared by deposition of Au nanoparticles on screen-printed SiO2 particle films
… technique for simple 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 …
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Characterization of Resistance Change in Stretchable Silver Ink Screen Printed on TPU-Laminated Fabrics Under Cyclic Tensile Loading
<p>A stretchable silver ink was screen printed to TPU sheets, then tensile coupons of the TPU, both bare and laminated to cotton, Denim and spandex fabric, were subjected to 1000 cycles of 20% uniaxial strain. In-situ resistance measurements of printed traces were processed to generate datasets of …
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DNA based biosensors for environmental and medical applications
… DNA based biosensors were developed using screen printed electrode as transducers. Biosensors are defined as a self-containing integrated devices, capable of providing specific quantitative or semi-quantitative analytical information using a biological recognition element which is in …
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Electronic properties of printed nanoparticulate silicon
Printed silicon is an award-winning technology in the development of a large area of flexible electronics. In an investigation of the fundamental properties of printed nanoparticulate silicon composites, layers were screen printed and successfully characterised to establish their electrical …
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Alphorn video beverage advertisements
… beverage brand, developed award winning recipes, screen printed glass bottles, registered a trademark and promoted my brand throughout the business creation process. I utilized a Hasselblad medium format digital camera to photograph the images, digitally drew, inked, painted, airbrushed and …
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PRINTED METALLISATION OF PHOSPHORUS DOPED SILICON SURFACES FOR SOLAR CELL APPLICATIONS
… on the development and characterization of printed metallisation methods for high-efficiency silicon wafer solar cells. Metallisation of phosphorus doped surfaces using screen-printed silver (Ag) pastes is a well-established process. However, its performance is limited by several fundamental …
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A study of copper thick film conductor adhesion mechanisms on ceramic substrates
… and CuO, an ink additive. The inks were then screen printed onto the substrates and fired at 900$\sp\circ$C in N$\sb2$ ambient containing less than 10 ppm of O$\sb2$. A statistical multiple linear regression analysis was successfully employed in the development of the glass frit and the …
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Flexible electronics : materials and sensor fabrication
… piezoelectric/pyroelectric sensors. Ink-jet, screen and stencil printing techniques were developed to print these devices. This work outlines attempts to develop a solution processable conductive ink for ink-jet printing. It then details the printing of commercial conductive ink on flexible …
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Novel Electrochemical Methods for Acidity Monitoring: Theory, Design and Application
… electrochemical sensors and the application of screen-printing technology in sensor fabrication are highlighted. Chapter 2 introduces the screen-printing technology and the fundamental methods of numerical simulation. In addition, reagents, equipment and software packages used in the thesis are …
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Investigations into the sensing capabilities of an electrochemical immunosensor employing polyaniline as a mediator species
… - poly(vinylsulphonate) (PANIIPVS) modified screen-printed carbon paste electrode used as a substrate for the immobilisation of antibody, and the subsequent competition assays of protein analytes. Chapter 1 is a literature review encompassing the field of electrochemical immunosensing. …
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Aminoxyl Catalyzed Electrochemical Ethanol Detection: Development of a New Breathalyzer Using Molecular Catalysis
… Our functional sensing element consists of a screen-printed electrode in which the graphene oxide-based working electrode is modified with aminoxyl derivatives, of which 4-hydroxy-2,2,6,6-tetramethylpiperidine 1-oxyl benzoate (TMB) was the most efficient derivative. Exposing this modified …
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Electrochemical impedance spectroscopy and surface plasmon resonance for diagnostic antibody detection
… for lipid antigen in solution and the use of screen-printed electrodes (SPE) in EIS to address affordability of diagnosis and improve sample turn-around time. The latter approach appeared quite promising in distinguishing a TB positive and a TB negative patient serum and is amenable to …
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Characterization of Flexible Hybrid Electronics Using Stretchable Silver Ink and Ultra-Thin Silicon Die
… silver based ink designed to be stretchable was screen printed on a TPU substrate and cured using box oven, conveyor convection oven, and photonic curing processes. Reliability tests were conducted including a tape test, crease test, wash test, and abrasion test. Optimization of each curing …
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Novel antibody-based biosensors for the detection of haptens, proteins and whole cells
… polymer chps, fluorescence-enhancement chips and screen-printed electrodes were all examined. The specific targets chosen were Internalin B@dB), an mnvasion-associated proteln of Listerla monocytogenes, parvovirus B19, the first human parvovirus and warfarin, the ninth most prescribed drug in the …
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