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Energy Transfer between CdZnS Quantum Dots and Perylene Diimide Dyes

  • Na Wu
    Na Wu
    ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, VIC3010, Australia
    Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou100864, China
    More by Na Wu
  • Nicholas Kirkwood
    Nicholas Kirkwood
    ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, VIC3010, Australia
  • Nicolau Saker Neto
    Nicolau Saker Neto
    ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, VIC3010, Australia
  • Rehana Pervin
    Rehana Pervin
    ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, VIC3010, Australia
  • Paul Mulvaney
    Paul Mulvaney
    ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, VIC3010, Australia
  • , and 
  • Wallace W. H. Wong*
    Wallace W. H. Wong
    ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, VIC3010, Australia
    *Email: [email protected]
Cite this: J. Phys. Chem. C 2023, 127, 4, 2116–2126
Publication Date (Web):January 25, 2023
https://doi.org/10.1021/acs.jpcc.3c00053
Copyright © 2023 American Chemical Society

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    Abstract

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    QD–dye systems are promising models for artificial photosynthesis and down-converter systems for LEDs and displays. To better understand the factors controlling energy transfer from the QDs to the dyes, we fabricated a series of CdxZn1–xS/ZnS quantum dot (QD)-perylene diimide (PDI) composite nanocrystals. The core–shell CdxZn1–xS/ZnS QDs were chosen for better control of surface chemistry and for the control of photophysical properties through core composition. The PDIs were designed with bulky substituents to reduce dye–dye aggregation effects. Energy transfer efficiency was found to depend upon both the length of the anchoring alkyl chain and the type of the terminal anchoring group. The maximum energy transfer efficiency of 91% from QDs to PDIs was achieved with composites containing PDIs with carboxylic acid anchoring groups and longer alkyl chains. It was found that composites with carboxylic acid anchors exhibited greater photostability than composites with amine anchors. Longer alkyl chains also led to greater photostability. Conversely, shorter chain alkanes promoted faster aggregation of the nanocrystal composites.

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    The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acs.jpcc.3c00053.

    • Detailed synthesis procedures for QDs and PDIs, determination of molar extinction coefficient for QDs, additional photophysical characterization of QD-PDI composites, and QD-PDI composite stability data (PDF)

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    Cited By

    This article is cited by 2 publications.

    1. Naoki Kubo, Mitsuaki Yamauchi, Hiroko Yamada, Sadahiro Masuo. Self-Assembly Behavior of Perylene Bisimide Derivatives on a Perovskite Nanocrystal Surface. The Journal of Physical Chemistry C 2024, 128 (11) , 4648-4654. https://doi.org/10.1021/acs.jpcc.3c08420
    2. Pooja Aggarwal, Anubhab Halder, Neelakshi, Ramesh Ramapanicker, Vishal Govind Rao. Enhanced Stability and Energy Transfer in Perovskite Nanocrystals: Paving the Way for Moisture-Resistant Light-Harvesting Devices. ACS Applied Nano Materials 2023, 6 (23) , 21616-21625. https://doi.org/10.1021/acsanm.3c03600

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