4.7 Article

Tunable room temperature phosphorescence and energy transfer in ratiometric co-crystals

Journal

CHEMICAL COMMUNICATIONS
Volume 56, Issue 56, Pages 7698-7701

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc02730h

Keywords

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Funding

  1. National Natural Science Foundation of China [21771021, 21822501, 22061130206]
  2. Newton Advanced Fellowship award [NAF\R1\201285]
  3. Fok Ying-Tong Education Foundation [171008]
  4. Beijing Nova Program [xx2018115]
  5. State Key Laboratory of Rare Earth Resources Utilization [RERU2019005]
  6. Measurements Fund of Beijing Normal University
  7. Fundamental Research Funds for the Central Universities

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Two co-crystals (BTA-ME-1 and BTA-ME-2) assembled with the same building blocks but in different ratios exhibit alternative stacking modes, relative orientations and aggregation states, leading to color-tunable green and yellow room temperature phosphorescence (RTP) and different intermolecular energy transfer efficiencies, respectively. Based on the time-resolved afterglow properties of the RTP emission, BTA-ME-2 is further applied for signal-visualized information encryption.

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