Room-Temperature Phosphorescence with Variable Lifetime of Halogen-Comprising Coordination Polymers.

Area of Science:

• Materials Science
• Chemistry
• Solid-State Physics

Background:

• Room-temperature phosphorescence (RTP) materials are crucial for advanced security applications.
• Tunable luminescence properties are highly desirable for complex encryption-decryption systems.

Purpose of the Study:

• To synthesize coordination polymers with lifetime-tunable room-temperature phosphorescence.
• To explore the impact of halogen ions on phosphorescence properties.
• To design a novel multiple encryption-decryption system utilizing these materials.

Main Methods:

• Hydro(solvo)thermal synthesis of three coordination polymers incorporating zinc centers.
• Introduction of different halogen ions (Cl, Br, I) and organic luminescent units.
• Characterization of room-temperature phosphorescence properties, including lifetime measurements.

Main Results:

• Successfully synthesized three coordination polymers with distinct room-temperature phosphorescence characteristics.
• Demonstrated that varying halogen ions (Cl, Br, I) leads to different phosphorescence lifetimes.
• Developed a multiple encryption-decryption system leveraging temporal and spatial resolution.

Conclusions:

• Coordination polymers with halogen-tuned RTP lifetimes offer a promising platform for security applications.
• The designed system effectively combines temporal and spatial encryption strategies.
• This work advances the development of sophisticated anti-counterfeiting and data security solutions.