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  • Interface Engineering in Solution-Processed Nanocrystal Thin Films for Improved Thermoelectric Performance

    Author(s)
    Ding, Defang
    Wang, Dawei
    Zhao, Man
    Lv, Jiawei
    Jiang, Hong
    Lu, Chenguang
    Tang, Zhiyong
    Griffith University Author(s)
    Tang, Zhiyong
    Year published
    2017
    Metadata
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    Abstract
    Solution-processed PbTe nanocrystal (NC) thin films are ligand exchanged by ethylenediamine and then annealed at 400 °C for enhancement of NC coupling. To further improve the performance, heterostructures are introduced into the PbTe/PbS films. Significantly, an optimized ZT of ≈0.30 is successfully achieved at 405 K. This method opens an avenue toward thermoelectric thin film devices with high performance.Solution-processed PbTe nanocrystal (NC) thin films are ligand exchanged by ethylenediamine and then annealed at 400 °C for enhancement of NC coupling. To further improve the performance, heterostructures are introduced into the PbTe/PbS films. Significantly, an optimized ZT of ≈0.30 is successfully achieved at 405 K. This method opens an avenue toward thermoelectric thin film devices with high performance.
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    Journal Title
    Advanced Materials
    Volume
    29
    Issue
    1
    DOI
    https://doi.org/10.1002/adma.201603444
    Subject
    Physical sciences
    Chemical sciences
    Engineering
    Materials engineering not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/172603
    Collection
    • Journal articles

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