MESA+ University of Twente
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MESA+ 2010

2010

JOOST MELAI (PROMOTION DATE: 21 DECEMBER 2010) Detectors for very low light levels are fabricated that can record radiation with a very high resolution. The whole system is built onto the surface of a CMOS microchip. The post-processing steps are carefully chosen to not harm the CMOS devices.
The chip used is a CMOS imaging chip with charge sensitive...
MICHIEL MAAS (PROMOTION DATE: 15 DECEMBER 2010) Templated electrodeposition was used as a scalable and cost-effective manufacturing technique for nanowires and nanotubes. All processes proceeded in the confined space of membrane pores: 50 nm and 200 nm.
Also, first steps were taken towards incorporations of nanowires...
MEREL LEISTIKOW (PROMOTION DATE: 15 DECEMBER 2010) In this thesis experimental results are presented that show that we can control the process of spontaneous emission by placing the emitter close to a nanostructure. Spontaneous emission near interfaces are investigated, in 2D and 3D photonic crystals and near random arrays of nanowires... JINCY JOSE (PROMOTION DATE: 9 DECEMBER 2010) The interaction of light with a thin film of a noble metal (for example, gold) contains a resonant phenomenon due to the collective oscillation of free electrons on the surface of the metal. The collective oscillation, known as surface plasmon polaritons, is highly sensitive to a change in the refractive index of the medium... OKTAY YILDIRIM (PROMOTION DATE: 8 DECEMBER 2010) The results in this thesis show the versatility and efficiency of phosph(on)ate-based self-assembled monolayers (SAMs) to modify and pattern metal oxides. The use for electrical applications and the adsorption of magnetic nanoparticles for data storage applications have been studied.... PINAR ZEYNEP CULFAZ (PROMOTION DATE: 3 DECEMBER 2010) Microstructured polymeric membranes were investigated. Microstructured templates or molds were used to form a microstructure in the polymer solution and then in the resulting membrane. This technique is called Phase Separation Microfabrication... WAQQAR AHMED (PROMOTION DATE: 24 NOVEMBER 2010) Development of the synthesis methods for bare and magnetically coated gold nanoparticles with tuneable optical and magnetic properties. It addresses ways to achieve control over their orientation and spatial positions both in solution and during the assembly at interfaces... DIGVIJAY BHAGWAN THAKUR (PROMOTION DATE: 29 OCTOBER 2010) Microfabrication techniques are increasingly used in different fields of chemistry, to realize structures with capabilities exceeding those of conventional macroscopic systems. Microfabricated chemical systems have a number of advantages for chemical synthesis, chemical kinetics studies and process development... IRIS VAN UITERT (PROMOTION DATE: 22 OCTOBER 2010) The process of electroporation is a widely employed technique, to engineer cells. Foreign materials are introduced, with the help of an electrical treatment. Although this technique has been in use for several decades, the success rate is still relatively low. This is... LASSE KAUPPINEN (PROMOTION DATE: 7 OCTOBER 2010) This thesis describes the design, fabrication, and characterization of compact optical devices for sensing and switching applications. Our focus has been to realize the devices using CMOS-compatible fabrication processes. In particular, the silicon photonics fabrication platform, ePIXfab, has been used for this purpose... AMIRMEHDI SAEDI (PROMOTION DATE: 27 AUGUST 2010) At the moment, tailoring the structure of nano-scale materials seems to be the most promising strategy finding materials possessing novel properties and applications... CHAITANYA DONGRE (PROMOTION DATE: 25 AUGUST 2010) By employing lab-on-a-chip devices, integrated DNA sequencing and genetic diagnostics have become feasible. Capillary electrophoretic separation is combined with integrated-waveguide laser excitation and ultra-sensitive fluorescence detection in an optofluidic chip... MARTIN JURNA (PROMOTION DATE: 2 JULY 2010) This thesis describes coherent anti-Stokes Raman scattering (CARS) microscopy. This nonlinear optical technique utilizes specific bonds of molecules, referred to as the ‘fingerprint’ of a molecule, to obtain chemically specific imaging of a sample.
It is a non-invasive method to identify structures of a specific...
MINH DUC NGUYEN (PROMOTION DATE: 30 JUNE 2010) Main goal was to integrate Pb(Zr,Ti)O3 (PZT) thin films into microelectromechanical systems (MEMS), using the pulsed laser deposition (PLD) technique. By using conductive-oxide electrodes, the accumulation of oxygen vacancies and the formation of an interfacial layer can be prevented; therefore, the decrease of... SAJID ULLAH KHAN (PROMOTION DATE: 30 JUNE 2010) This thesis work addresses low-cost micron and submicron-scale parallel patterning methods, with emphasis on the formation of patterned thin films of metal oxides and organic/inorganic hybrid materials. The materials can be deposited and patterned from liquid precursors, such as sol-gel solutions and colloidal suspensions. The derived materials were successfully patterned with resolutions from tens of micrometers down to 100 nm, obtaining lines, pillars and pit patterned films... JITENDRA KUMAR CHINTHAGINJALA (PROMOTION DATE: 18 JUNE 2010 Catalytic multiphase reactors are at the heart of many chemical industries. Higher reaction rates can be achieved when the rate of mass transfer keeps up with the intrinsic activity of the catalysts used. Presence of concentration gradients along the catalyst particle may prevent optimal operation... CHIEN-CHANG WU (PROMOTION DATE: 18 JUNE 2010) Dip-pen nanolithography (DPN) is an atomic force microscopy (AFM) based lithography technique, offering possibilities of fabricating patterns with feature sizes, ranging from micrometers to tens of nanometers, utilizing either top-down or bottom-up strategies. Successful design and fabrication... CHANDRASHEKHAR U MURADE (PROMOTION DATE: 4 JUNE 2010) In this thesis a combined optical tweezers and line scanning fluorescence microscopy instrument is build, which is capable of probing the change in the mechanical properties of a single double-stranded DNA molecule, as it is interacting with protein molecules, having the capability to detect the number and location of the protein molecules on the DNA simultaneously... YIPING ZHAO (PROMOTION DATE: 27 MAY 2010) The aim of the project was to create high resolution stamps for thermal nano-imprint applications. The creation of nanoridges with sub-100 nm resolutions was explored by means of edge lithography via top-down routes, i.e. in combination with micromachining technology... IKENNA NGENE (PROMOTION DATE: 27 MAY 2010) The research is aimed at visually characterizing membrane fouling as well as fouling removal. Deposition on the membrane surface was studied, like the buildup of ‘cake’ towards the channel exit.
It was observed that the biofilm formation and growth occurred upstream of micro structured membranes, contrary to reports in literature...
SHU-HAN HSU (PROMOTION DATE: 20 MAY 2010) Control over functional groups at the surface of solid supports, e.g. silicon oxide of metals, allows tailoring of monolayers in a predictable manner, resulting in the formation of functional, more complex nanostructures on surfaces, to meet the needs for specific applications, such as molecular sensing... IVAN VERA MARUN (PROMOTION DATE: 20 MAY 2010) This thesis deals with the development of a versatile technique to measure spin polarization with atomic resolution. Such a technique is useful for characterization of magnetic nanostructures, specifically in relation to spin-polarized transport... JING YANG (PROMOTION DATE: 23 APRIL 2010) Nd3+-complex-doped, photo-defined polymer channel waveguides were realized on thermally oxidized silicon wafers, with a simple and reproducible fabrication procedure, by dividing the functionalities of photo-definition and active doping over two different polymers... KRISTIAAN KUIT (PROMOTION DATE: 16 APRIL 2010) Hybrid magnetometers consisting of a normal conducting Hall sensor and a superconducting flux concentrator, have been investigated. The operation of such sensors in an unshielded environment gives rise to 1/f noise, due to trapped vortices in the superconducting body... OYA TAGIT (PROMOTION DATE: 19 MARCH 2010) Fabricating quantum dots polymer hybrid nanostructures, enable realization of many applications, because encaging QDs within polymer matrices enables the control over optical and spectroscopic properties, and introduces a strong resistance to chemical and photo degradation... GANESHRAM KRISHNAMOORTHY (PROMOTION DATE: 12 MARCH 2010) The main goal of the project is to integrate surface plasmon resonance (SPR-)based biosensors with an electro-kinetic lab-on-a-chip, for multiple biomolecular interaction measurements with high-throughput. The thesis describes a successful operation of a.. XUEXIN DUAN (PROMOTION DATE: 26 FEBRUARY 2010) Patterning strategies are developed of the combination of bottom-up and top-down techniques to achieve high resolutions of sub-100nm. Several unconventional nanofabrication methods on surfaces are used: soft lithography (microcontact printing, micromolding in capillaries), nanoimprint lithography... WOUTER NABER (PROMOTION DATE: 26 FEBRUARY 2010) Electron transport and/or spin behaviour is studied in several organic/inorganic systems. The use of organic chemistry allows for: engineering structures at the atomic scale, bottom-up fabrication and self-assembly. Thereby opening up ways to study key problems in solid-state physics... CANET ACIKGOZ (PROMOTION DATE: 12 FEBRUARY 2010) The role of organometallic polymers was studied, in bottom-up and top-down nanofabrication techniques to provide patterned platforms. Poly-ferrocenylsilanes (PFSs) were explored for their use in top-down fabrication, since they show a high etch resistance to reactive ion etching (RIE)... DENIS DOROKHIN (PROMOTION DATE: 5 FEBRUARY 2010) The research described in this thesis is concerned with the synthesis, characterization and application of novel QD materials, and their integration into multilayer structures at
interfaces. In particular, chemical engineering of the QD ligand...
WILLEM BEEKER (PROMOTION DATE: 29 JANUARY 2010) Various types of nonlinear interaction of ultrashort light pulses with matter are described with a focus on finding applications through the use of numerical models and experimental validation. The efficiency of Second Harmonic Generation within a powder is used to obtain the orientation of the crystal...