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Aggregation Induced Emission-Based Covalent Organic Frameworks for High-Performance Optical Wireless Communication.

Swati Jindal¹, Jian-Xin Wang¹, Yue Wang²

¹Advanced Membranes and Porous Materials Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.

Journal of the American Chemical Society

|September 3, 2024

Summary

This summary is machine-generated.

Covalent organic frameworks (COFs) with aggregation-induced emission (AIE) were used for optical wireless communication (OWC). This novel AIE-COF material achieved high data rates, outperforming traditional materials for faster data transfer.

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Area of Science:

Materials Science
Optoelectronics
Organic Chemistry

Background:

Aggregation-induced emission (AIE) luminogens enhance solid-state fluorescence.
Covalent organic frameworks (COFs) offer tunable structures for material design.

Purpose of the Study:

To explore the use of AIE-luminogen-integrated COFs (AIE-COFs) in optical wireless communication (OWC).
To evaluate the performance of AIE-COFs for high-speed data transmission.

Main Methods:

Synthesized an AIE-COF via Knoevenagel condensation, integrating an AIE luminogen with linear building blocks.
Characterized the AIE-COF's photoluminescence quantum yield and lifetime.
Employed orthogonal frequency-division multiplexing for data transmission tests.

Main Results:

The synthesized AIE-COF demonstrated a high solid-state photoluminescence quantum yield (~39%) and short lifetime (~1 ns).
Achieved a -3 dB modulation bandwidth of nearly 200 MHz and a net data rate of 825 Mb/s.
An aggregation-caused quenching based COF showed significantly lower quantum yield.

Conclusions:

AIE-COFs are promising materials for high-speed OWC applications.
The design and tuning of COF structures can lead to advanced OWC components.
This research enables faster and more efficient data transfer through novel material development.