Chiral Scintillator-Based Copper(I) Iodine Complex with Strong Circularly Polarized Emission and High-Resolution...

Area of Science:

• Materials Science
• Inorganic Chemistry
• Photophysics

Background:

• Circularly polarized luminescence (CPL) is crucial for advanced technologies like 3D displays and quantum computing.
• Developing efficient chiral luminescent materials is essential for these applications.

Purpose of the Study:

• To synthesize and characterize novel chiral copper(I) iodine complex scintillators.
• To evaluate their photoluminescence properties and potential for CPL applications.

Main Methods:

• Synthesis of chiral copper(I) iodine complexes: *R/S*-{(Me₃-3-AQ)[Cu₃I₅]·CH₃CN}_n (*R/S*-1).
• Characterization of optical and luminescence properties, including photoluminescence quantum yield (PLQY) and CPL asymmetry factor (*g*_lum).
• Fabrication of flexible films for resolution testing.

Main Results:

• The synthesized chiral copper(I) iodine complexes (*R/S*-1) demonstrated high PLQYs (89.84% and 91.09%).
• Significant CPL was observed with *g*_lum values of +1.93 × 10^-3 and -1.65 × 10^-3.
• Flexible films prepared from *R/S*-1 achieved a high resolution of 16.6 lp/mm.

Conclusions:

• The novel chiral copper(I) iodine complexes are efficient CPL emitters.
• These materials hold potential for developing advanced scintillator applications, particularly in high-resolution imaging.