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  • Development of perovskite thin films for use in piezoelectric based microelectromechanical systems

    Creator:
    Shelton, Christopher T.
    Abstract:
    The lead-zirconate-titanate (PZT) solid solution system is currently the workhorse of piezoelectric-based microelectromechanical systems (MEMS) research. Among bulk materials it is known to be one of the strongest piezoelectrics, with extremely high piezoelectric coefficients and electro-mechanical coupling factors. Reproducing these exceptional qualities in thin film form, however, requires precise tuning...
    Resource Type:
    Masters Thesis
    Full Text:
    - property relationships in the most widely used piezoelectric thin film, the perovskite Pb(Zr,Ti)O3. The

  • Atomic Layer Deposition (ALD) Process Development of Nb-doped TiO₂ as a Transparent Conducting Oxide (TCO) and ALD of HfO₂/Nb₂O₅ Bilayers as Insulating Barriers for Metal/Insulator/Insulator/Metal (MIIM) Diodes

    Creator:
    Lin, Shijia
    Abstract:
    Transparent conductive oxides (TCOs), primarily indium doped tin oxide, have been widely used in numerous fields since decades ago, such as solar cells, displays, OLEDs and ‘smart windows’ etc. Owing to the scarcity of indium, there is a great demand for new alternative materials. Metal/insulator/metal (MIM) diodes are a critical...
    Resource Type:
    Masters Thesis
    Full Text:
    manufacture thin film electroluminescent (TFEL) flat displays because of the strong demand of large area

  • Zinc tin oxide thin-film transistor current mirror circuits

    Creator:
    Feller, Layannah Elizabeth
    Abstract:
    The central focus of this thesis is the design, fabrication and characterization of amorphous oxide semiconductor (AOS) thin-film transistor (TFT) current mirrors. The thin-film deposition and circuit fabrication methods used to realize zinc tin oxide (ZTO) TFT current mirrors are addressed in order to elucidate the processing challenges for this...
    Resource Type:
    Masters Thesis
    Full Text:
    . Title: Zinc Tin Oxide Thin-Film Transistor Current Mirror Circuits Abstract approved: John F. Wager

  • Electrically tunable thin-film inductors based on synthetic antiferromagnet cores

    Creator:
    An, Na
    Abstract:
    The objective of this research is to demonstrate the feasibility of implementing electrically tunable on-chip inductors based on synthetic antiferromagnet (SAF) cores. This thin film magnetic core is made of a magnetic bi-layer antiferromagnetically coupled through a nonmagnetic spacer layer. An energy model is developed to investigate the magnetic behavior...
    Resource Type:
    Masters Thesis
    Full Text:
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3 Electrically Tunable Thin Film Magnetic Core 15 3.1 Synthetic Antiferromagnet Structure

  • Amorphous metal thin films as a platform for solution processing

    Creator:
    Landau, Nicholas P.
    Abstract:
    The research presented herein represents an effort to combine the ultra-smooth surface of an amorphous metal thin film (AMTF) with a solution-processed dielectric synthesized via prompt inorganic condensation (PIC). Analysis of dielectric film quality is carried out via electrical measurements of metal-insulator-metal (MIM) diodes. Anneals at 500 and 700 °C...
    Resource Type:
    Masters Thesis
    Full Text:
    herein represents an effort to combine the ultra-smooth sur- face of an amorphous metal thin film (AMTF

  • Hybrid Desktop Processes for Integrated Deposition and Low-cost, In-situ Sintering of Metallic and Non-metallic Conductive Nanoparticles

    Creator:
    Bhandari, Roshan
    Abstract:
    Microscale continuous thin films or patterned conductive structures find applications in thin film electronics, energy generation and functional sensor systems. An emerging alternative to conventional vacuum based deposition of such structures is the additive deposition and sintering of conductive nanoparticles, to enable low temperature, low- cost and low energy fabrication....
    Resource Type:
    Masters Thesis
    Full Text:
    structures find applications in thin film electronics, energy generation and functional sensor systems. An

  • Modeling, Fabrication, and Characterization of Magnetic Thin Films for Integrated Inductor and MRAM Applications

    Creator:
    Buford, Benjamin
    Abstract:
    Magnetic thin films have potential to improve devices such as on-chip inductors, and enable new technologies such as magnetic random access memory (MRAM). The use of magnetic cores in on-chip inductors is typically limited to applications well under 1 GHz. At higher frequencies, the performance of the magnetic core is...
    Resource Type:
    Dissertation
    Full Text:
    anisotropy to increase the ferromagnetic resonance frequency and thus allow the use of thin-film magnetic

  • Study of Interphase in Polylactic Acid and Cellulose Nanocrystal Composite Films

    Creator:
    Rao, Pratish Ramesh
    Abstract:
    Polylactic acid (PLA), a renewable material, is used widely in a variety of commercial and specialty applications. However, certain limitations such as high temperature stability and brittleness limit its applicability. This problem is addressed by reinforcing PLA with a variety of materials but the process gives rise to different issues...
    Resource Type:
    Masters Thesis
    Full Text:
    ) .................... 51 Figure 4-9 : TGA curves for a) PLA control film cast at 120oC and 2h and b) PLA control film

  • Refractory Amorphous Metal Thin Films

    Creator:
    Olsen, Kristopher R.
    Abstract:
    Amorphous metal thin films lack the grain boundaries and dislocations present in crystalline metal films. As a result, amorphous metal films can be more mechanically robust, atomically smooth, and more resistant to chemical attack than crystalline metals. However, amorphous metals are meta-stable and subject to crystallization upon heating, thus limiting...
    Resource Type:
    Dissertation
    Full Text:
    , including all thin-film deposition and electrical characterization, as well as taking part in all analysis

  • Amorphous oxide semiconductor thin-film transistor ring oscillators and material assessment

    Creator:
    Sundholm, Eric Steven
    Abstract:
    Amorphous oxide semiconductor (AOS) thin-film transistors (TFTs) constitute the central theme of this thesis. Within this theme, three primary areas of focus are pursued. The first focus is the realization of a transparent three-stage ring oscillator with buffered output and an output frequency in the megahertz range. This leads to...
    Resource Type:
    Masters Thesis
    Full Text:
    : Amorphous Oxide Semiconductor Thin-Film Transistor Ring Oscillators and Material Assessment Abstract