Applied Micro- and Nanosystems: Nye registreringer
Viser treff 21-40 av 45
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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 ... -
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 ... -
Heterojunction engineering on TiO2 nanotubes electrodes and their applications
(Doctoral dissertations at the University of South-Eastern Norway;9, Doctoral thesis, 2018)Abstract With the dramatic progress in nanotechnology, TiO2 nanomaterials have shown blooming applications in the field of energy and environment since the discovery of water photolysis on a TiO2 electrode in 1972. In ... -
Reliable Packaging and Development of Photodiode Module for Operation at 4 K
(Doctoral dissertations at the University of South-Eastern Norway;5, Doctoral thesis, 2018)AC voltage standards based on pulse-driven Josephson junction arrays, operated at 4 K, enable quantum-accurate generation of arbitrary voltage waveforms. These devices are operated by biasing the arrays with high-frequency ... -
Surface plasmonics analysis and photoelectrochemical properties of Au/TiO2 nanosystems
(Doctoral dissertations at the University of South-Eastern Norway;2, Doctoral thesis, 2018)This thesis focuses on investigation of photoelectric and photoeletrochemical (PEC) performance of TiO2 nanotube based photoelectrodes. Surface plasmonic resonance (SPR) have been studied by theoretical analysis, fabrication ... -
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 ... -
Smartphone-based urinary biomarker detection: an application-oriented device and algorithm
(Doctoral dissertations at the University College of Southeast Norway;30, Doctoral thesis, 2018)Persons of advanced age have a higher risk of contracting urinary tract infection than the general population. Functional impairments, cognitive impairments, urine incontinence and advanced age encumbers the management of ... -
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 ... -
High-stability piezoresistive pressure sensors
(Doctoral dissertations at the University College of Southeast Norway;25, Doctoral thesis, 2017)Piezoresistive pressure sensors have been in use for decades and are among the most successful micromachined sensors. From their introduction in the 1960s, they have experienced a dramatic improvement on performance and ... -
Design of a bidirectional front-end for resonating sensors
(Doctoral dissertations at the University College of Southeast Norway;27, Doctoral thesis, 2017)In the last decades, the use of electronic sensors in portable applications became increasingly common. They provide a simple way to study processes, monitor envi-ronment conditions or to provide hazard systems. In order ... -
Air-coupled ultrasound for plate thickness measurements
(Doctoral dissertations at the University College of Southeast Norway;18, Doctoral thesis, 2017)Non-destructive testing using ultrasound is well established as a technique of inspecting miscellaneous structures and components. Ultrasonic waves propagating in an elastic solid are sensitive to both the material and ... -
Environmental microorganisms: microsystem approaches to separation and analysis
(Doctoral dissertations at the University College of Southeast Norway;16, Doctoral thesis, 2017)Three technologies were tested in this PhD project, all of which have potential for use in micro systems for environmental analyses: The Trilobite® technology for particle separation and purification, the analysis technique ... -
The development of a miniaturized hydration sensor based on the principle of osmotic pressure
(Doctoral dissertations at the University College of Southeast Norway;9, Doctoral thesis, 2017)The thesis presents a novel hydration sensor that employs osmotic pressure to detectde‐ and overhydration in body fluids. This sensor could be used to measure different levels of hydration in an organism, e.g. the human ... -
Miniaturization of Circuit Packaging of an Accelerometer Heart Monitoring Device
(Doctoral dissertations at the University College of Southeast Norway;7, Doctoral thesis, 2016)Continuous monitoring heart activity based on implantable accelerometer devices have been demonstrated as efficient method that could provide higher sensitivity and specificity than the conventional electrocardiography ... -
Design and microfabrication of new automatic human blood sample collection and preparation devices
(Doctoral thesis, 2015)For self-sampling or collection of blood by health personal related to point-ofcare diagnostics in health rooms, it may often be necessary to perform automatic collection of blood samples. The most important operation that ... -
Encapsulation of implantable microsensors
(Doctoral thesis, 2015)Heart function monitoring by attaching an accelerometer directly to the heart ventricle has been established as an effective way of diagnosing ischemia. The method holds a number of advantages over conventional monitoring ... -
Application-oriented microfluidic LOC devices for the detection of microorganisms, toxic chemicals and serological biomarkers
(Doctoral theses at Buskerud and Vestfold University College;6, Doctoral thesis, 2015)Lab-on-a-chip (LOC) technology has advanced over the past several decades. As miniaturized multiphase multistep reactors, LOCs are suitable for the implementation of complex liquid phase reactions in the field of biomedical ... -
Solid liquid interdiffusion wafer-level bonding for MEMS packaging
(Doctoral theses at Buskerud and Vestfold University College;5, Doctoral thesis, 2015)The trend of micro-electronic-mechanical-systems (MEMS) packaging requires costeffective and high performance packaging techniques. The objective of this study is to develop solid-liquid-interdiffusion (SLID) wafer-level ... -
Speckle suppression in laser projection displays
(Doctoral theses at Buskerud and Vestfold University College;4, Doctoral thesis, 2015)Laser light source becomes more popular today in the projection technology. The use of lasers in projection applications provides considerable advantages compared to conventional projection lamps. These are, for example, ...