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Showing 1 to 20 of 229 for “"ultrathin"”.
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Photodetection using ultrathin metal films
… be overcome by exploiting resonant absorption in ultrathin metal films (< 20 nm). Our approach paves the way to implement scalable, lithography-free, and low-cost silicon-based optoelectronics beyond the material bandgap. Light absorption in metal films can excite hot carriers, which are useful …
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Thermal transport in ultrathin fluoropolymer films
Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2009-12-11T16:24:11Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Ghossoub_Marc.pdf: 1311419 bytes, checksum: 2e0bd760a803e28dfafc8547436a3564 (MD5)
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Nanoscale light-matter interaction of ultrathin materials
… demand materials engineered at the atomic scale. Ultrathin materials offer unique advantages: large oscillator strengths and tunable electro-optical properties by seamless stacking into hybrid platforms. In this cumulative thesis, we develop a unified microscopic framework to explore light–matter …
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Magnetization Dynamics in Ultrathin Films and Multilayers
… discusses the magnetization dynamics of ultrathin films and multilayers using broadband ferromagnetic resonance (FMR) techniques and micromagnetic simulations. Chapter one includes the theoretical background on magnetization dynamics, the explanation of FMR experiments with schematic …
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Extreme electromagnetic phenomena over an ultrathin platform
… the two-dimensional metamaterials, provide ultrathin platforms revealing novel properties. Supported by planar geometry, it can substitute the existing device, enhancing their functionalities or be the device itself. In this context, this dissertation focuses on metasurfaces achieving …
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Thermal stability of ultrathin magnetic metallic multilayers
Contains fulltext : 33153.pdf (Publisher’s version ) (Open Access)
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Ultrathin silicon wafer bonding physics and applications
Ultrathin silicon wafer bonding is an emerging process that simplifies device fabrication, reduces manufacturing costs, increases yield, and allows the realization of novel devices. Ultrathin silicon wafers are between 3 and 200 microns thick with all the same properties of the thicker silicon …
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Degradation and Breakdown of Ultrathin Gate Oxide
For ultrathin oxides, a new type of failure mode, soft breakdown, has been observed. The characteristics of this kind of failure are often identified by a large increase of gate signal noise level. It has been proposed that there is a threshold power that divides soft and hard breakdown. In this …
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CO oxidation on metal supported ultrathin oxide films
Ultradünne Oxidfilme auf Metallsubstraten wurden in der CO-Oxidation bei niedrigen Temperaturen und quasi-atmosphärischen Drücken untersucht. Eine repräsentative Auswahl ultradünner Filme enthält die Rutheniumoxidfilme gewachsen auf Ru(0001) und Pt(111) und Mangan- und Zinkoxidfilme aufbereitet auf …
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Nanomechanical Properties of Polymer-Grafted Nanoparticle Ultrathin Films
… for the PGNP thin films with thickness in the ultrathin regime (<100nm). Moreover, thermal annealing led to a further increase in the elastic modulus. The mechanical response of the polymer nanocomposite was evaluated to explore the viability of PGNP inclusions as compared to the pure BCP film.
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Ultrathin metasurface devices for phase and polarization control
… propagation in desirable manner. Metsurfaces are ultrathin and ultraflat, which has enabled ultrathin optical devices that can outperform the capabilities of traditional bulky optical elements. The unprecedented capabilities of metasurfaces in the manipulation of amplitude, phase and polarization …
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Tuning Spin Currents with Ultrathin Heavy Metal Microstructure
… 𝜆, of the constituent materials. However, in the ultrathin film limit, morphology is highly sensitive to growth parameters, making consistent extraction of the spin-dependent properties challenging. Although much work has been done to study spin transport in nanodevices, a long-standing …
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Investigation of electroactive ultrathin films by surface plasmon spectroscopy
… and high pressure technique to investigate ultrathin electroactive polymer films. Firstly, the electropolymerization of 2, 2a??-bithiophene was investigated by electrochemical surface plasmon spectroscopy. The anion doping and dedoping were monitored during the electropolymerization. A shift …
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ELECTRODEPOSITION OF POLYMER NETWORKS (EPON) AS CONFORMAL ULTRATHIN COATINGS
… functionalization, and the resulting reactive ultrathin films are amenable to further post-deposition modification with desired functionalities. The modularity of the dual-functional molecular design enables a large library of core molecules which are not only restricted in homopolymers but …
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Quantum Electronic Effects in Ultrathin Metal Films on Semiconductors
… of a metal's itinerant electrons to an ultrathin film and variations in the surface energy (relative stability) of such films as a function of thickness. These effects are first examined from a theoretical viewpoint, where models based upon a free-electron gas confined to a …
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Atomic resolution studies of oxide superlattices and ultrathin films
The ability to grow ultrathin films layer-by-layer with well-defined epitaxial relationships has allowed research groups worldwide to grow a range of artificial films and superlattices, first for semiconductors, and now with oxides. In the oxides thin film research community, there have been …
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Proton dynamics in ultrathin GdO𝑥H𝑦 films for magneto-ionics
Dynamic tuning of materials properties with simple voltage control is desirable for a variety of applications, from magnetic memory, to neuromorphic computing, to solid state pixels and optical circuit components. Metal oxides can conduct ionic current, allowing their properties and those of …
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1/f noise in MOSFETs with ultrathin gate dielectrics
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 1992
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Functional and complex topological applications of plasma polymerized ultrathin films
… focused on the fabrication of plasma polymerized ultrathin films and the elucidation of their unique properties with an emphasis on the solvent-less, dry polymerization process to introduce post-deposition functionality, robustness, and shape preservation. Two major classes of materials are the …
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