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    High-Performance Optoelectronics Based on Mixed-Dimensional Organolead Halide Perovskites

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    Type
    Dissertation
    Authors
    Ma, Chun cc
    Advisors
    Anthopoulos, Thomas D. cc
    Committee members
    Tung, Vincent cc
    McCulloch, Iain cc
    Heeney, Martin
    Program
    Material Science and Engineering
    KAUST Department
    Physical Science and Engineering (PSE) Division
    Date
    2020-04-01
    Permanent link to this record
    http://hdl.handle.net/10754/662793
    
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    Abstract
    Halide perovskites have some unique advantages as optoelectronic materials. Metal halide perovskites have been attracting enormous attention for applications in optoelectronic devices such as photodetectors, light-emitting devices and field-effect transistors. The remarkable semiconducting properties have been intensively investigated in recent years. However, the performance of optoelectronics devices based on the conventional perovskite is limited by the ion migration, the mobility of the carriers and the light absorption in the near infrared region and so on. In a decade, numerous attempts are studied to further breakthrough the limitations using both physical and chemical methods. This dissertation is devoted to overcoming the drawbacks by integrating the state-of-art perovskite with other functional materials and to further deciphering the carrier transport mechanics behind the mixed dimensional heterostructures. Field-effect transistors are the workhorse of modern microelectronics. Proof-of-concept devices have been made, utilizing solution-processed perovskite as transistors. Beyond the Field-effect transistors, photodetectors can be construct with a transistor configuration. In this dissertation, we exploited Au dimers with structural darkness to enhance the light harvesting, and utilize sorted semiconducting single-walled carbon nanotubes to enhance the conductivity of thin-film. At last, we developed a hybrid memtransistor, modulable by multiple physical inputs using hybrid perovskite and conjugated polymer heterojunction channels to realize neuromorphic computing.
    Citation
    Ma, C. (2020). High-Performance Optoelectronics Based on Mixed-Dimensional Organolead Halide Perovskites. KAUST Research Repository. https://doi.org/10.25781/KAUST-7086G
    DOI
    10.25781/KAUST-7086G
    ae974a485f413a2113503eed53cd6c53
    10.25781/KAUST-7086G
    Scopus Count
    Collections
    PhD Dissertations; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program

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