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 journalArticle

6 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 1

Keywords

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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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