Ultraviolet Circularly Polarized Luminescence: Progress in Chiral Materials and Emerging Applications

Journal of Luminescence, Journal Year: 2025, Volume and Issue: 280, P. 121127 - 121127

Published: Feb. 11, 2025

Language: Английский

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Chiral europium halides with high-performance magnetic field tunable red circularly polarized luminescence at room temperature

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 14, 2025

Chiral organic-inorganic hybrid metal halides as promising circularly polarized luminescence (CPL) emitter candidates hold great potential for high-definition displays and future spin-optoelectronics. The recent challenge lies primarily in developing high-performance red CPL emitters. Here, coupling the f-f transition characteristics of trivalent europium ions (Eu3+) with chirality, we construct chiral Eu-based halides, (R/S-3BrMBA)3EuCl6, which exhibit strong predictable emission large photoluminescence quantum yield (59.8%), narrow bandwidth (≈2 nm), long lifetime ms), together dissymmetry factor |glum| 1.84 × 10−2. Compared previously reported these show highest brightness. Furthermore, degree polarization (R/S-3BrMBA)3EuCl6 can be manipulated by external magnetic field. Particularly, benefiting from field-generated Zeeman splitting spin mixing at exciton states, an anomalously positive magneto-photoluminescence was observed room temperature. This work provides efficient strategy constructing both pure-red It also opens door rare-earth toward optoelectronic spintronic applications. perovskites are materials luminescence. Here authors present leading to magneto-chiroptical properties.

Language: Английский

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Ordered assembly of templated chiral/achiral organic cations toward efficient circularly polarized emission in hybrid antimony chlorides

Science China Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Language: Английский

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Efficient Circularly Polarized Electroluminescence Enabled by Low-Dimensional Bichiral Perovskite Nanocrystals

ACS Nano, Journal Year: 2024, Volume and Issue: 18(51), P. 34962 - 34970

Published: Dec. 11, 2024

Chiral organic-inorganic hybrid perovskite nanocrystals have gained attention as promising materials for circularly polarized luminescence emission, owing to their high photoluminescence efficiency and superior charge-carrier mobility. However, achieving electroluminescence (CPEL) from mixed-phase remains a significant challenge. We present bichiral formamidinium lead bromide (FAPbBr

Language: Английский

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