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Filtering by: Creator Sung, Chih-Jen Remove constraint Creator: Sung, Chih-Jen Academic Affiliation Chemical, Biological and Environmental Engineering Remove constraint Academic Affiliation: Chemical, Biological and Environmental Engineering Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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  • Fabrication of CuInGaSe₂ thin film solar cells using low-cost air-stable inks

    Creator:
    Wang, Wei
    Abstract:
    CuInGaSe₂ (CIGS), a promising thin film solar cell material, has gained lots of attention in decades due to its high energy conversion efficiency and potential lower manufacture cost over conventional Si solar cells. As a cheaper processing method compared to vacuum-based techniques, solution-based deposition has been successfully applied to fabricate...
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________ Chih-Hung Chang CuInGaSe2 (CIGS), a promising thin film solar cell material, has

  • Inkjet-Printed Metal Halide Semiconductors for Wearable Electronics

    Creator:
    Li, Shujie
    Abstract:
    There is an emerging interest in developing wearable electronics as a platform, which provides the flexibility of a wearable while maintaining its promising functionality as smart textiles. Metal-halide semiconductors are attractive materials with tunable optical and electrical properties. Researchers have widely studied and applied it for advanced photonics and optoelectronic...
    Resource Type:
    Dissertation
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    approved: ______________________________________________________ Chih-Hung Chang There is an

  • Growth, Characterizations, and Applications of Patterned Nanostructured Thin Film

    Creator:
    Gao, Zhongwei
    Abstract:
    A unique microreactor-assisted nanomaterial synthesis and printing process was studied for the fabrication of patterned metal oxide nanostructured thin films. The process uses a continuous flow microreactor to control and generate a reactive chemical flux that was transported to a patterned microfluidic channel. The microreactor-assisted nanomaterial synthesis process can generate...
    Resource Type:
    Dissertation
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    Abstract approved: ______________________________________________________ Chih-Hung Chang A

  • Investigation of solution-based processes for functional metal oxides : printing, nanostructures, and applications

    Creator:
    Han, Seung-Yeol
    Abstract:
    The various solution-based processes, spin coating, inkjet printing, microreactor assisted nanoparticle deposition (MANDTM) and spin-successive ionic layer absorption and reaction (Spin-SILAR) were used to demonstrate thin film electronics and anti-reflective coatings. Several aspects of thin film transistors (TFTs) were tested including a range of temperatures, annealing atmosphere, and deposition methods....
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________________________ Chih-hung Chang The various solution-based processes, spin coating, inkjet printing

  • Solution-based Chalcogenide Thin Film Deposition

    Creator:
    Pan, Changqing
    Abstract:
    As a group of promising semiconductor materials, metal chalcogenides in thin film form have been widely used in electronics and optoelectronics applications, such as solar cell devices and photon sensors. Unfortunately, the film size and product throughput are limited by the current vacuum-based thin film deposition techniques. Solution-based thin film...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Chih-Hung Chang As a group of promising semiconductor materials, metal chalcogenides

  • Growth, Characterization and Applications of Zinc Sulfide Thin Films by Solution-Based Processes

    Creator:
    Chiu, Dick
    Abstract:
    Zinc Sulfide (ZnS) thin film, with a wide band gap, has been used for many applications, such as buffer layer for CIGS solar cells, light emitting diodes and thin film electroluminescent devices. In this work, ZnS thin films were prepared using two different deposition processes. In the first method, ZnS...
    Resource Type:
    Dissertation
    Full Text:
    Chih-Hung Chang Zinc Sulfide (ZnS) thin film, with a wide band gap, has been used for many

  • Understanding And Improving The Activity Of Oxygen Evolution Reaction Catalysts In Alkaline And Chloride-Containing Electrolytes

    Creator:
    Adiga, Prajwal Prakash
    Abstract:
    Water electrolysis plays a pivotal role in achieving a green hydrogen economy by sourcing electricity from intermittent renewable sources. However, the efficiency of the electrolysis process is limited by the sluggish oxygen evolution reaction (OER) kinetics, whereas the kinetics of the hydrogen evolution reaction (HER) are more facile. This thesis...
    Resource Type:
    Dissertation
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    my collaborators (EpiC Oxide Lab – Sung Kyun University, Pacific Northwest National Lab, Jalan

  • Nonthermal Plasma Microreaction Engineering for Gas and Liquid Processing

    Creator:
    Pommerenck, Justin
    Abstract:
    Atmospheric pressure plasma is non-thermal at millimeter to micrometer separations. It represents an alternative low exergy initiator of many chemical reactions. In many instances heat, light or sound are not efficient providers of the necessary energy to overcome chemical activation barriers. The focus of this research is applying dc nonthermal...
    Resource Type:
    Dissertation

  • Analyzing the Kinetics and Thermodynamics of Surface Reactions using Density Functional Theory

    Creator:
    Sprowl, Lynza H.
    Abstract:
    The interactions of chemical species with a solid surface play a role in many everyday applications such as heterogeneous catalysis, corrosion, and degradation reactions. Understanding the reaction kinetics and thermodynamics via rate constants and equilibrium constants, which require knowledge of the adsorbed species’ entropy, is essential for tuning these surface...
    Resource Type:
    Dissertation
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    everyone who has ever been on my committee for your guidance and support – Greg Herman, Chih-hung Chang