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Tailoring chiral perovskite nanocrystals for spin light-emitting diodes
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DOI：10.1016/j.matt.2026.102916.png)
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Abstract
En 中文
Spin-polarized light-emitting diodes have emerged as an important technology for generating circularly polarized electroluminescence at room temperature, with potential applications in three-dimensional displays, biological imaging, optical communication, and quantum information processing. For practical implementation, emissive materials should simultaneously exhibit high luminescence efficiency and strong chiroptical activity. Chiral perovskite nanocrystals offer a compelling platform because they combine solution processability, high photoluminescence quantum yields, narrow and tunable emission, and chirality-induced spin selectivity, thereby enabling spin-polarized carrier injection without the need for ferromagnetic injectors or external magnetic fields. However, the rational control of chirality transfer, emission modulation, device efficiency, and operational stability remains insufficiently developed. To advance the application of chiral perovskite nanocrystals in spin-polarized light-emitting diodes, this review systematically summarizes recent progress in their construction, optoelectronic regulation, and device integration. By integrating material design, chiroptical properties, and device performance, this review aims to provide guidance for developing high-efficiency spin-polarized light-emitting diodes and for facilitating their evolution from static, single-function light sources toward dynamically tunable and multifunctionally integrated photonic platforms. Finally, this review discusses the remaining bottlenecks and emerging opportunities in this field, including reproducible synthesis, improved stability, and scalable device fabrication, with the goal of guiding future research toward practical applications and commercialization.
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