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Filtering by: Creator Bernard, Kim S. Remove constraint Creator: Bernard, Kim S. Advisor Chang, Chih Hung Remove constraint Advisor: Chang, Chih Hung

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  • Cu-Ga-S/ZnS Quantum Dots with Silica Melting Gel as a Luminescent Downshifting Coating for Enhancing Solar Photovoltaic Power Generation

    Creator:
    Chen, Si-Hao
    Abstract:
    Solar cells, also known as photovoltaic devices, are a class of renewable energy systems that can convert photons into electrons without the carbon dioxide emission. Short-wavelength, high-energy photons in the ultraviolet (UV) range can't be efficiently utilized by most solar cells because of the spectral mismatch. Luminescent downshifting is a...
    Resource Type:
    Masters Thesis
    Full Text:
    Engineering presented on September 1, 2021. Title: Cu-Ga-S/ZnS Quantum Dots with Silica Melting Gel as a

  • 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
    Full Text:
    . Dick Chiu, Dr. Changho Choi, Dr. Ki-Joong Kim, Dr. Changqing Pan, Dr. Zhongwei Gao, Dr. Yujuan He

  • 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
    Full Text:
    members: Dr. Gregory S. Herman, Dr. Chong Fang, Dr. Li-Jing (Larry) Cheng, and Dr. Xue Jin, for their

  • Continuous flow synthesis of lead sulfide and copper indium diselenide nanocrystals

    Creator:
    Knapp, Michael W.
    Abstract:
    The use of size and shape tunable quantum confinement nanocrystals has many potential applications for use in semiconductors, optics and sensors. The synthesis of lead sulfide (PbS) and copper indium diselenide (CuInSe₂) nanoparticles are of particular interest for use in semiconductor, optoelectronics and bio-medical applications. The continuous synthesis of lead...
    Resource Type:
    Masters Thesis
    Full Text:
    to thank my committee members: Dr. Brian K. Paul, Dr. Gregory S. Herman and Dr. Kaichang Li

  • 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:
    , Gregory S. Herman, and Vincent Remcho for their time, patience, invaluable comments and suggestions. I

  • 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:
    members: Dr. Gregory S. Herman, Dr. Alexandre F. T. Yokochi, Dr. Jason H. Ideker, and Dr. Kaichang Li

  • CdS nanocrystalline thin films deposited by the continuous microreactor-assisted solution deposition (MASD) process : growth mechanisms and film characterizations

    Creator:
    Su, Yu-Wei
    Abstract:
    The continuous microreactor-assisted solution deposition (MASD) process was used for the deposition of CdS thin films on fluorine-doped tin oxide (FTO) glass. The MASD system, including a T-junction micromixer and a microchannel heat exchanger is capable of isolating the homogeneous particle precipitation from the heterogeneous surface reaction. The results show...
    Resource Type:
    Dissertation
    Full Text:
    Spectroscopy show the bindings energies of Cd 3d3/2, Cd 3d5/2, S 2p3/2 and S 2p1/2 at 411.7 eV, 404.8 eV

  • Low-temperature, Inkjet-printed p-Type Copper(I) Iodide-based Thin-Film Transistors

    Creator:
    Gorecki, Jenna Y.
    Abstract:
    Inkjet-printed p-type copper(I) iodide-based TFTs were successfully fabricated. As-printed copper(I) halide semiconductor films, such as CuI, CuBrI, and CuClI, were used as p-type active channel layers for TFTs. The entire process of the TFTs fabrication was maintained under 150 °C, which is compatible with flexible plastic substrates and transparent glass...
    Resource Type:
    Masters Thesis
    Full Text:
    with field-effect mobility as high as 4.36 cm2 V−1 s−1 and Ion/Ioff ratio of 10 3.24 on the silicon

  • Thermodynamics of Laser-Assisted Solution Combustion Synthesis of Yttrium Oxide

    Creator:
    Dhas, Jeffrey A.
    Abstract:
    To assess the conversion and embedment of yttrium nitrate to yttrium oxide using selective laser melting, a thermodynamic approach for laser power and scan speed predictions on surface temperature, recoil pressure, and resulting track morphology window are employed. Inkjet printing is used to deposit the liquid film of yttrium nitrate...
    Resource Type:
    Honors College Thesis
    Full Text:
    embedded yttrium oxide. Laser power of 150 W and scan speed of 100 mm/s showed good agreement in

  • Continuous and rapid synthesis of nanoclusters and nanocrystals using scalable microstructured reactors

    Creator:
    Jin, Hyung Dae
    Abstract:
    Recent advances in nanocrystalline materials production are expected to impact the development of next generation low-cost and/or high efficiency solar cells. For example, semiconductor nanocrystal inks are used to lower the fabrication cost of the absorber layers of the solar cells. In addition, some quantum confined nanocrystals display electron-hole pair...
    Resource Type:
    Dissertation
    Full Text:
    production of highly monodispersed phosphine-stabilized Au11 nanoclusters at a rate of about 11.8 [mg/s