A Circularly Polarized Luminescent Zero-Dimensional Indium Halide Hybrid Crystal for Polarization-Sensitive...

Area of Science:

• Materials Science
• Solid-State Chemistry
• Optoelectronics

Background:

• Chiral luminescent materials are crucial for polarization-sensitive optoelectronics.
• Developing functional single-crystal devices from these materials is a key challenge.

Purpose of the Study:

• To synthesize and characterize a novel zero-dimensional chiral indium halide hybrid.
• To investigate its potential for polarization-sensitive photodetection and chiroptronic applications.

Main Methods:

• Slow cooling crystallization was used to synthesize the [ACPP]4InBr7 compound.
• X-ray crystallography confirmed its crystallization in the chiral tetragonal space group I4.
• Circularly polarized luminescence (CPL) and device fabrication were employed for characterization.

Main Results:

• The synthesized [ACPP]4InBr7 exhibits broadband white-light emission and significant chiroptical activity (CPL signals).
• A single-crystal photodetector demonstrated a clear polarization-dependent photoresponse with a figure-eight polar pattern.
• The device showed excellent operational stability during repeated on/off switching cycles.

Conclusions:

• The [ACPP]4InBr7 compound is a multifunctional chiral halide hybrid with promising properties.
• It shows significant potential for practical applications in stable polarization-sensitive photodetection.
• This work advances the development of chiroptoelectronic devices.