Role of carbon quantum dots and film thickness on enhanced UV shielding capability of flexible polymer film containing carbon quantum dots/N-doped ZnO nanoparticles

Periyayya Uthirakumar, M. Devendiran, Jin Hyeon Yun, Gyu Cheol Kim, S. Kalaiarasan, In Hwan Lee

    Research output: Contribution to journalArticlepeer-review

    35 Citations (Scopus)

    Abstract

    We report a simple method for preparing flexible polymer film containing carbon quantum dots/N-doped ZnO (CQD/N-ZnO) nanoparticles, as UV shielding material. The polymer film showed an enhanced UV shielding capability with increasing of CQD/N-ZnO nanoparticles. The maximum of 47% of UV shielding capability was achieved with 1 wt.% of CQD/N-ZnO nanoparticles and two-order enhancement was achieved by controlling film thickness to 250 μm. It was found that CQDs plays important role to promote compatibility of hydrophilic ZnO into hydrophobic polymer matrix without disturbing the transparency of the film. An excellent UV shielding capability of 85% and 92% was witnessed in 250 μm thick polymer film under a UV lamp and direct daylight, respectively.

    Original languageEnglish
    Pages (from-to)771-777
    Number of pages7
    JournalOptical Materials
    Volume84
    DOIs
    Publication statusPublished - 2018 Oct

    Bibliographical note

    Funding Information:
    This research was encouraged by the management of Sona College of Technology and supported by BK21 plus project in 2018, and National Research Foundation of Korea ( KRF-2017R1A2B3006141 ).

    Publisher Copyright:
    © 2018 Elsevier B.V.

    Keywords

    • Carbon quantum dots
    • Nanoparticles
    • Polymer film
    • UV-shielding
    • Zinc oxide

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • General Computer Science
    • Atomic and Molecular Physics, and Optics
    • Spectroscopy
    • Physical and Theoretical Chemistry
    • Organic Chemistry
    • Inorganic Chemistry
    • Electrical and Electronic Engineering

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