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Turn-up Luminescent Sensing of Ultraviolet Radiation by Lanthanide Metal-Organic Frameworks.

Sida ZhangLixi ChenJian XieYugang ZhangFeng HuangXia WangKai LiFuwan ZhaiQian YangLanhua ChenYa-Xing WangXing DaiZhifang ChaiShu-Ao Wang
Published in: Inorganic chemistry (2022)
Here, we report a series of two-dimensional lanthanide metal-organic frameworks Ln-DBTPA (where DBTPA = 2,5-dibromoterephthalic acid and Ln = Tb ( 1 ), Eu ( 2 ), or Gd ( 3 )) showing a unique turn-up responsiveness toward ultraviolet (UV) radiation. The luminescence enhancement was derived from the accumulated radicals that can promote the intersystem crossing process. The compound 1 shows an ultralow detection limit of 9.1 × 10 -9 J toward UV radiation, representing a new type of luminescent UV detectors.
Keyphrases
  • metal organic framework
  • fluorescent probe
  • sensitive detection
  • living cells
  • radiation induced
  • mycobacterium tuberculosis
  • quantum dots
  • light emitting
  • single molecule
  • label free