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    Patterning of Perovskite Single Crystals

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    Name:
    Daniel Corozo Diaz - Thesis - Final Draft.pdf
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    21.61Mb
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    Type
    Thesis
    Authors
    Corzo Diaz, Daniel Alejandro cc
    Advisors
    Amassian, Aram cc
    Committee members
    Laquai, Frédéric cc
    Inal, Sahika cc
    Program
    Materials Science and Engineering
    KAUST Department
    Physical Science and Engineering (PSE) Division
    Date
    2017-06-12
    Embargo End Date
    2020-07-01
    Permanent link to this record
    http://hdl.handle.net/10754/625305
    
    Metadata
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    Access Restrictions
    At the time of archiving, the student author of this thesis opted to temporarily restrict access to it. The full text of this thesis became available to the public after the expiration of the embargo on 2020-07-01.
    Abstract
    As the internet-of-things hardware integration continues to develop and the requirements for electronics keep diversifying and expanding, the necessity for specialized properties other than the classical semiconductor performance becomes apparent. The success of emerging semiconductor materials depends on the manufacturability and cost as much as on the properties and performance they offer. Solution-based semiconductors are an emerging concept that offers the advantage of being compatible with large-scale manufacturing techniques and have the potential to yield high-quality electronic devices at a lower cost than currently available solutions. In this work, patterns of high-quality MAPbBr3 perovskite single crystals in specific locations are achieved through the modification of the substrate properties and solvent engineering. The fabrication of the substrates involved modifying the surface adhesion forces through functionalization with self-assembled monolayers and patterning them by photolithography processes. Spin coating and blade coating were used to deposit the perovskite solution on the modified silicon substrates. While single crystal perovskites were obtained with the modification of substrates alone, solvent engineering helped with improving the Marangoni flows in the deposited droplets by increasing the contact angle and lowering the evaporation rate, therefore controlling and improving the shape of the grown perovskite crystals. The methodology is extended to other types of perovskites such as the transparent MAPbCl3 and the lead-free MABi2I9, demonstrating the adaptability of the process. Adapting the process to electrode arrays opened up the path towards the fabrication of optoelectronic devices including photodetectors and field-effect transistors, for which the first iterations are demonstrated. Overall, manufacturing and integration techniques permitting the fabrication of single crystalline devices, such as the method in this thesis work, are fundamental in pushing hybrid perovskites towards commercialization.
    Citation
    Corzo Diaz, D. A. (2017). Patterning of Perovskite Single Crystals. KAUST Research Repository. https://doi.org/10.25781/KAUST-Q26Q5
    DOI
    10.25781/KAUST-Q26Q5
    ae974a485f413a2113503eed53cd6c53
    10.25781/KAUST-Q26Q5
    Scopus Count
    Collections
    MS Theses; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program

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