Dynamic Ultralong Phosphorescence and Optical Waveguiding Switches in Silver‐Organic Complex via Reversible Single‐Crystal‐to‐Single‐Crystal Conversion

Abstract Dynamic ultralong room‐temperature phosphorescent (RTP) materials with stimuli‐responsive properties have attracted considerable interest for applications in sensors, light‐emitting devices, and information security. Here, we introduce a novel class of silver (Ag)‐organic complexes exhibiting rare, direct ultralong RTP, achieved through the heavy‐atom effect of Ag + ions and highly ordered assembly of coordination polymers. The Ag‐based complex displays reversible solvent‐responsive RTP, shifting from green to yellow emission in response to humidity and solvent variations. This transformation is driven by a solvent‐mediated single‐crystal‐to‐single‐crystal (SCSC) conversion, enabling color‐tunable…

• NN
  National Natural Science Foundation of China

  Awards: 22275021, 22288201
• BM
  Beijing Municipal Natural Science Foundation

  Award: L234064
• BN
  Beijing Nova Program

  Award: 20230484414
• FR
  Fundamental Research Funds for the Central Universities