Blar i Applied Micro- and Nanosystems på utgivelsesdato
Viser treff 21-40 av 45
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Perovskite Solar Cells : Improved Active layer Morphology and Pore-filling in TiO2 Nano-Scaffolds
(Doctoral dissertations at the University College of Southeast Norway;34, Doctoral thesis, 2018)Organometallic halide perovskite solar cells (PSCs) have recently shown tremendous research interest due to their remarkable photovoltaic (PV) performance reaching up to 22% power conversion efficiency in merely five years ... -
Interdigital-Electrode Thin-Film Piezoelectric Microactuators
(Doctoral dissertations at the University College of Southeast Norway;29, Doctoral thesis, 2018-01)Along with microsensors, microactuators are the most important components of microelectromechanical systems. Many microactuators use piezoelectric coupling mechanisms because they allow these actuators to generate high ... -
Optically operated pulse-driven Josephson junction arrays and range extension using voltage dividers and buffer amplifiers
(Doctoral dissertations at the University of South-Eastern Norway;52, Doctoral thesis, 2019)Voltage dividers and buffer amplifier combinations can be used to transfer and extend traceability in voltage and electrical power metrology between a wide range of instruments. For voltages up to 1000 V, resistive voltage ... -
High-Q bulk acoustic wave resonators for RF filter applications
(Doctoral dissertations at the University of South-Eastern Norway;24, Doctoral thesis, 2019)This thesis proposes a novel design method for optimizing bulk acoustic wave (BAW) resonators, including film bulk acoustic resonators (FBAR) and solidly mounted res-onators (SMR). The purpose is to enhance their quality ... -
Die-attach for high-temperature electronics
(Doctoral thesis, 2019)Applications in harsh environments push the boundaries for electronic systems. High temperatures put great stress on electronic components. The die-attach is an enabling component that makes the system work. It needs to ... -
Heat generation in underwater transducers
(Doctoral dissertations at the University of South-Eastern Norway;38, Doctoral thesis, 2019)Acoustic transducers are used for a variety of applications, ranging from medical to maritime uses. In the maritime sector, underwater transducers can be used for appli- cations such as seabed mapping, fishing and ... -
Simulation and microfabrication of MEMS vacuum electronic devices for terahertz technology
(Doctoral dissertations at the University of South-Eastern Norway;49, Doctoral thesis, 2019)Numerous applications explore the scarcely used terahertz (THz) band in the electromagnetic spectrum. However, widespread utilization of the THz band is technically challenging, due to the lack of power sources. The power ... -
Flexible electrochemical sensor platform
(Doctoral dissertations at the University of South-Eastern Norway;54, Doctoral thesis, 2019)Bringing an electroanalytical assay from the laboratory to the level of a commercially or clinically viable product often requires substantial cost, effort and time. While the real value may lie in the assay and sensor ... -
Therapeutic dual-frequency ultrasound transducers
(Doctoral thesis, 2020)The interaction of ultrasound with organic and non-organic matter has opened up for a vast industry. Arguably, in medicine, the most known application of ultrasound is diagnostic imaging of fetuses. However, ultrasound can ... -
Local Synthesis of Carbon Nanotubes on CMOS-MEMS Microheaters for Sensing Applications
(Doctoral dissertations at the University of South-Eastern Norway;84, Doctoral thesis, 2020)Research on nanomaterials is growing rapidly due to their extraordinary properties, which can significantly differ from their bulk form. The physicochemical properties of nanoscale materials are diverse and can be engineered ... -
Layer-specific strain and strain rate : Estimation using miniature transducers attached to the epicardium
(Doctoral dissertations at the University of South-Eastern Norway;68, Doctoral thesis, 2020)Reliable methods to asses ventricular function during and after cardiac surgery are essential tools to evaluate patient prognosis. We presented an ultrasound system to monitor cardiac motion using miniature transducers ... -
Evaluation of resolution enhancement in shifted superimposed projection displays: Simulations and experiments
(Doctoral dissertations at the University of South-Eastern Norway;60, Doctoral thesis, 2020)Spatial resolution is one of the key performance parameters of a projected display, and the projector industry continuously aims to increase it. Projector resolution is traditionally based on the resolution of the spatial ... -
Modeling and design of piezoelectrically actuated MEMS tunable lenses
(Doctoral dissertations at the University of South-Eastern Norway;76, Doctoral thesis, 2020)Autofocus is a crucial feature in cameras, especially when photographing objects at different distances and having them in sharp focus without any quality loss in the captured image. Over the last decade, several research ... -
Preparation of novel metal oxides/hydroxides materials and their applications in supercapacitors
(Doctoral dissertations at the University of South-Eastern Norway;89, Doctoral thesis, 2021)Supercapacitors, as next-generation efficient, safe and clean energy storage devices with superior power density, fast charge/discharge rate, excellent temperature adaptability and remarkable service life, significantly ... -
Glucose energy harvester for self-powering of remote distributed bioanalytical microsystems
(Doctoral dissertations at the University of South-Eastern Norway;88, Doctoral thesis, 2021)Implantable medical devices came of age with the artificial pacemaker more than 60 years ago. Their true potential of being located directly where their prosthetic or therapeutic actions are needed will be further enhanced ... -
Visible light responsive titanium-oxides for enhanced photoelectrochemical water splitting application
(Doctoral dissertations at the University of South-Eastern Norway;134, Doctoral thesis, 2022)Semiconductor-based photoelectrochemical (PEC) water splitting under sunlight has the potential to produce sustainable hydrogen at a low cost and on a large scale. Titanium dioxide (TiO2) is extensively studied as one of ... -
Hierarchical Black Silicon and Their Applications
(Doctoral dissertations at the University of South-Eastern Norway;116, Doctoral thesis, 2022)Black silicon is expected to be a promising material for photoelectric, photothermic, photocatalytic, and microfluidic applications due to its remarkably anti-reflectivity, anti-bacterial effect, hydrophilicity, and ... -
Inductive impedance matching network for Magnetic Resonant Wireless Power Transmission
(Doctoral dissertations at the University of South-Eastern Norway;152, Doctoral thesis, 2023)Inductive wireless power transfer is getting more and more attention as the demand for mobile electronic devices grows. There are already well-functioning wireless charging systems for smartphones, tablets, and electric ... -
Impact of single crystal properties on underwater transducer designs
(Doctoral dissertations at the University of South-Eastern Norway;154, Doctoral thesis, 2023)The ongoing robotic revolution in oceanic science puts new requirements on underwater transducers. Small platforms require compact multi-purpose transducers, and there is limited space available for the electronics. ... -
Point of Care COPD Diagnostics Based on Paper-based Assay and Biofluid Sensing
(Doctoral dissertations at the University of South-Eastern Norway;167, Doctoral thesis, 2023)Chronic obstructive pulmonary disease (COPD) has always been the one of the top four major death causes during the last ten years. During the era of covid-19 pandemic, COPD patients faced higher mortality rates than ever ...