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Published on: July 14, 2015
A Strategy to Enhance Luminescence in Photochromic Coordination Polymers for Multi-Mode Smart Displays
Yi-Feng Yuan1, Yan Lin1, Meng-Ting He1
1Henan Province Industrial Cooling Water Recycling Engineering and Technology Research Center, College of Chemistry and Molecular Sciences, Henan University, Henan 475001, China.
Novel photochromic coordination polymers (CPs) demonstrate tunable, efficient luminescence for smart displays and data encryption. In situ doping with lanthanide ions enhances fluorescence, enabling advanced applications in information security.
Area of Science:
- Materials Science
- Photochemistry
- Nanotechnology
Background:
- Photocontrollable luminescent materials are crucial for advanced applications like intelligent switches and information security.
- Stimulus-responsive coordination polymers (CPs) offer unique properties for light-based technologies.
Purpose of the Study:
- To synthesize novel photochromic CPs with tunable luminescence.
- To investigate the effect of in situ lanthanide doping on luminescence properties.
- To explore the potential of these materials in multimode smart displays and data encryption.
Main Methods:
- Solvothermal synthesis of two stimulus-responsive CPs (CPs 1-2) using a photoactive TPT ligand.
- In situ doping of CP 2 with lanthanide ions (Eu/Tb) to create Eu/Tb@CP 2 composites.
- Characterization of photochromic and luminescence behaviors.
Main Results:
- CPs 1-2 exhibit distinct photochromism and photocontrollable luminescence.
- Eu/Tb@CP 2 composites show significantly enhanced fluorescence quantum yield (QY from 0.49% to 16.5%) without losing photochromic properties.
- The materials demonstrate dynamic, efficient, and multicolor luminescence suitable for multimode smart displays.
Conclusions:
- This study presents novel photochromic CPs with efficient and tunable luminescence.
- In situ doping is an effective strategy to enhance luminescence properties of CPs.
- These materials hold promise for advanced applications in multilevel information display and data encryption.
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