Chiral Rare-Earth (Ce, Eu) Metal Halides with Bright Circularly Polarized Luminescence DOI
Congcong Chen, Jian Chen, Zhongwei Chen

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(46), P. 21801 - 21805

Published: Nov. 6, 2024

Chiral metal halide materials are emerging chiroptical that easy to synthesize and have a wide tunability. Rare-earth (RE) metals desirable components be incorporated in the hybrid regime; however, they typically difficult handle for solution-based chemistry. Here, we report two new examples of chiral RE halides with Ce(III) Eu(III) alkanolammonium cations (R/S-3-hydroxyquinuclidium). These compounds crystallize non-centrosymmetric space group R3, where their mirror-like symmetric circular dichroism (CD) circularly polarized luminescence (CPL) further witness nature. The superior emission properties, including high photoluminescence quantum yield Ce-based (84–90%) Eu-based (27–29%), led distinct sharp symmetrical CPL ultraviolet visible regions, dissymmetry factors (glum) ∼2 × 10–3 ∼4 10–3, respectively. This work has established expanded demonstrated potential spintronic applications.

Language: Английский

Wafer-Scale Patterning Integration of Chiral 3D Perovskite Single Crystals toward High-Performance Full-Stokes Polarimeter DOI

Junli Bai,

Hebin Wang, Jianpeng Ma

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(27), P. 18771 - 18780

Published: June 27, 2024

Chiral three-dimensional (3D) perovskites exhibit exceptional optoelectronic characteristics and inherent chiroptical activity, which may overcome the limitations of low-dimensional chiral devices achieve superior performance. The integrated chip high-performance arbitrary polarized light detection is one aims be achieved by 3D perovskites. Herein, we first fabricate wafer-scale full-Stokes polarimeter synergy unprecedented (

Language: Английский

Citations

16
Chiral europium halides with high-performance magnetic field tunable red circularly polarized luminescence at room temperature DOI Creative Commons
Xinyi Niu, Yang Li,

Haolin Lu

et al.

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

Citations

2
Efficient Ultraviolet Circularly Polarized Luminescence in Zero‐Dimensional Hybrid Cerium Bromides DOI
Chen Li, Yi Wei, Yan Zhang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(26)

Published: April 18, 2024

Ultraviolet circularly polarized luminescence (UV-CPL) with high photon energy shows great potential in light sources and stereoselective photopolymerization. However, developing luminescent materials UV-CPL performance remains challenging. Here, we report a pair of rare earth Ce

Language: Английский

Citations

8
Chiral 3D Perovskite Formation Induced by Chiral Templates DOI

Han-Jiang Yang,

Bingxuan Li,

Jin-Yun Wang

et al.

Nano Letters, Journal Year: 2024, Volume and Issue: 24(31), P. 9569 - 9574

Published: July 29, 2024

Chiral 3D perovskites pose challenges compared to lower-dimensional variants due limited chiral organic cation options. Here, we present a universal and controlled method for synthesizing lead halide using amines or alcohols as templates. Introducing these templates PbCl2 in N,N-dimethylformamide (DMF) under acidic conditions induces the crystallization of R/S [DMA]PbCl3 (DMA = dimethylamine). The resulting structure aligns with used, stemming from helical Pb2Cl95– chain verified by single-crystal X-ray diffraction. Furthermore, perovskite exhibits absorption circular dichroism (CD) signals high-energy band, enabling circularly polarized light (CPL) detection UV spectrum. A CPL detector constructed this demonstrates excellent performance, boasting an anisotropy factor photocurrent (gIph) 0.296. Our work not only introduces novel controllable crafting but also opens new avenues detection.

Language: Английский

Citations

7
Two 3D Rare-Earth Double Perovskite Materials Constructed with a Pair of Enantiomers DOI
Sun Xiao,

Yuting Li,

Xinyu Qiu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 6, 2025

Organic-inorganic hybrid chiral small-molecule materials combine the inherent properties of both components; however, studies integrating chirality with rare-earth double-perovskite are limited. In this work, we synthesized two enantiomers three-dimensional (3D) double-perovskites, [R-3-HDMP]2CsEu(NO3)6 (1) and [S-3-HDMP]2CsEu(NO3)6 (2), by reacting R-3-HDMP S-3-HDMP (where 3-HDMP = 3-hydroxy-N,N-dimethylpyrrole) CsNO3 Eu(NO3)3 in a 2:1:1 ratio within an acidic solution. Both R-3-HDMPI S-3-HDMPI crystallize space group P212121 at room temperature, exhibiting transition from SHG-on to SHG-off (SHG second harmonic generation) upon heating cooling. The temperature-dependent X-ray single-crystal diffraction analysis carried out on compound 1 2, before after phase transition, disclosed transformation their groups noncentrosymmetric centrosymmetric. Additionally, incorporation elements as B-site cations imparts exceptional fluorescence compounds. These effectively merge unique characteristics molecules luminescence structures, paving way for innovative optical devices advanced information processing technologies.

Language: Английский

Citations

1
Stepwise amplification of circularly polarized luminescence in indium-based metal halides by regulating their structural dimension DOI Creative Commons

Cui‐Mi Shi,

Haolin Lu,

Jin-Yun Wang

et al.

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

Published: Feb. 10, 2025

Language: Английский

Citations

1
Chiral Perovskite Heterostructure Films of CsPbBr3 Quantum Dots and 2D Chiral Perovskite with Circularly Polarized Luminescence Performance and Energy Transfer DOI

Yuan Wang,

Mu‐Sen Song,

Jiaqi Zhao

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(33), P. 22334 - 22343

Published: Aug. 9, 2024

This work reports the synthesis of chiral perovskite heterostructure films by combining a two-dimensional (2D) (R-/S-MBA)2PbI4 with CsPbBr3 quantum dots (QDs). The as-synthesized exhibit obvious circularly polarized luminescence (CPL) properties, even though pure 2D cannot present photoluminescence. It indicates that chirality excited state QDs originates from perovskite. circular polarization-resolved transient absorption (TA) spectra further demonstrate CPL response energy transfer between layer and suppression spin relaxation, which induces imbalance population states in layer. In addition, photoluminescence (PL), dichroism (CD), these can be controlled varying thickness component layer, demonstrates anion exchange tune chemical composition optoelectronic properties due to low bonding difference them decrease strain within reduce radiative recombination lifetime. provides guidance for perovskites strong insight into origination CPL.

Language: Английский

Citations

6
Dion–Jacobson Perovskites with a Ferroelectrically Switchable Chiral Nonlinear Optical Response DOI
Weixin He,

Changjiang Chen,

Shiyao Wu

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 19, 2024

Electrically switchable second harmonic generation (SHG) is highly valuable in electro-optic modulators, which can be deployed data communication and quantum optics. Coupling circular dichroism (CD) with an electrically controlled SHG process advantageous because it enhances the signal transmission bandwidth security while enabling multiple modulation modes for optical logic. However, ferroelectrically chiral second-order nonlinearity rarely reported. Here, we demonstrate of based on multipolar effect a ferroelectric two-dimensional hybrid perovskite s-(FBDA)CdCl4 (s-FBDA = (2s)-2-fluorobutane-1,4-diamine). (s-FCC) crystals are stable air, its response exhibits (i.e., SHG-CD) that switched. The SHG-CD arises from reconfiguration distinct chirality-induced moments during switching process. This induces π/2 difference SHG, leading to reversal circularly polarized light sensitivity. As proof concept, s-FCC used encrypted communications.

Language: Английский

Citations

5
Designing guanidine-based lead-free hybrid indium perovskites with highly efficient intrinsic broadband emissions DOI

Chunqing Hou,

Xiaoting Liu, Zisheng Wang

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(20), P. 7426 - 7434

Published: Jan. 1, 2024

Recent advances in luminescent materials have highlighted zero-dimensional (0D) hybrid metal halides as highly efficient candidates.

Language: Английский

Citations

4
Boosting circularly polarized luminescence by optimizing off-centering octahedral distortion in zero-dimensional hybrid indium-antimony halides DOI Creative Commons
Yulian Liu, Yi Wei, Zhishan Luo

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(37), P. 15480 - 15488

Published: Jan. 1, 2024

By optimizing the off-centering distortion of octahedra in 0D hybrid metal halides, high photoluminescence quantum yield near-unity and large dissymmetry factor 3.8 × 10 −2 are achieved, boosting their circularly polarized luminescence.

Language: Английский

Citations

4