Crystal-glass phase transition enabling reversible fluorescence switching in zero-dimensional antimony halides

Area of Science:

• Materials Science
• Solid-State Chemistry
• Photophysics

Background:

• Luminescent metal halides offer tunable photoluminescence through crystal-glass phase transitions.
• Controlling these transitions is key to developing advanced optical materials.

Purpose of the Study:

• To investigate zero-dimensional (0D) antimony-based halide glasses.
• To explore their reversible crystal-glass phase transition behavior.
• To modulate luminescence properties for practical applications.

Main Methods:

• Synthesis of four distinct 0D Sb-based halide glasses.
• Characterization of phase transition dynamics under thermal and chemical stimuli (acetone).
• Analysis of photoluminescence properties and their modulation.

Main Results:

• Demonstrated reversible crystal-glass phase transitions in the synthesized glasses.
• Observed tunable photoluminescence properties correlated with phase changes.
• Successfully utilized fluorescence switching for information encryption and anti-counterfeiting.

Conclusions:

• Sb-based halide glasses with reversible phase transitions are promising for optical applications.
• The ability to tune luminescence via phase switching opens new avenues for advanced materials.
• These materials show potential for secure information storage and authentication.