Multicolor Emission in Perovskite Nanostructures via Quantum Confinement Engineering for High-Speed Optical Wireless
Xin Zhu1, Wenqing Niu2, Lijie Wang1
1Center of Excellence for Renewable Energy and Storage Technologies, Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
ACS Nano
|May 18, 2026
Summary
Quantum confinement engineering in perovskite quantum dots (QDs) enables multicolor converters for high-speed optical wireless communication (OWC). This breakthrough achieves 4 Gbps data rates, advancing OWC technology.
Area of Science:
- Materials Science
- Optoelectronics
- Quantum Physics
Background:
- Broadly tunable color converters are essential for high-speed optical wireless communication (OWC).
- Lead halide perovskite quantum dots (QDs) offer potential for efficient light conversion.
Purpose of the Study:
- To introduce quantum confinement engineering for designing multicolor converters using perovskite QDs.
- To achieve systematic emission tunability for high-speed OWC applications.
Main Methods:
- Utilizing quantum confinement engineering to control perovskite QD size and emission properties.
- Employing transient absorption spectroscopy to analyze size-dependent carrier dynamics.
- Integrating multicolor converters into wavelength-division multiplexing (WDM) schemes.
Main Results:
- Achieved systematic emission tunability across the blue-green spectrum via precise QD size control.
- Demonstrated efficient photoluminescence and nanosecond lifetimes suitable for advanced communication.
- Confirmed suitability for multichannel operations through carrier dynamics analysis.
- Enabled data transmission rates up to 4 Gbps using WDM.
Conclusions:
- Quantum confinement engineering is an effective strategy for developing high-performance multicolor converters.
- Perovskite QD-based converters offer a practical solution for scalable, high-capacity OWC.
- The developed converters surpass existing technologies in OWC data rates.
