The first chiral cerium halide towards circularly-polarized luminescence in the UV region

Niu, Xinyi; Zeng, Zhichao; Wang, Zhaoyu; Lu, Haolin; Sun, Bing; Zhang, Hao-Li; Chen, Yongsheng; Du, Yaping; Long, Guankui

doi:10.1007/s11426-024-1946-7

Cited by 20 publications

(7 citation statements)

References 64 publications

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“…It is worth noting that Long's group recently reported the first novel rare-earthbased chiral OIMH, CeCl 4 Á2CH 3 OH (R/S-MCC), which couples the unique and superior optical, electrical, magnetic, and spintronic properties of rare-earth elements with chirality, which will accelerate the maturation of chiral optoelectronics and spintronics toward real applications. 9 In addition, new tunable-color inorganic luminescent materials are attracting significant attention. 10 Currently, In 3+ -based 0D OIMHs are increasingly recognized as highly promising candidates for solid-state light emitters.…”

Section: Introductionmentioning

confidence: 99%

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

Hou,

Liu,

Wang

et al. 2024

J. Mater. Chem. C

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Section: Introductionmentioning

confidence: 99%

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

Hou,

Liu,

Wang

et al. 2024

J. Mater. Chem. C

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“…[17c,18] However, efficient UV-CPL has not been achieved in 0D HMHs. [19] Herein, through delicately adopting chiral organic cations with large steric hindrance, novel enantiomeric Ce 3 + -based 0D chiral HMHs, R/S-(C 14 H 24 N 2 ) 2 CeBr 7 (C 14 H 24 N 2 = 1-benzyl-N,4-dimethylpiperidin-3-amine, abbreviated as R/ S-BMCeBr) with high-efficiency UV-CPL emissions are synthesized. Spectroscopic results demonstrate that these compounds exhibit UV light emission with high PLQYs of (32-39)% and intense CPL with j g lum j values of around (1.3-1.5)×10 À 2 .…”

Section: Introductionmentioning

confidence: 99%

Efficient Ultraviolet Circularly Polarized Luminescence in Zero‐Dimensional Hybrid Cerium Bromides

Li,

Wei,

Zhang

et al. 2024

Angew Chem Int Ed

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Ultraviolet circularly polarized luminescence (UV‐CPL) with high photon energy shows great potential in polarized light sources and stereoselective photopolymerization. However, developing luminescent materials with high UV‐CPL performance remains challenging. Here, we report a pair of rare earth Ce3+‐based zero‐dimensional (0D) chiral hybrid metal halides (HMHs), R/S‐(C14H24N2)2CeBr7, which exhibits characteristic UV emissions derived from the Ce 5d‐4f transition. The compounds show simultaneously high photoluminescent quantum yields of (32‐39)% and large luminescent dissymmetry factor (|glum|) values of (1.3‐1.5)×10‐2. Thus, the figures of merits of R/S‐(C14H24N2)2CeBr7 are calculated to be (4.5‐5.8)×10‐3, which are superior to the reported UV‐CPL emissive materials. Additionally, nearly 91% of their PL intensities at 300 K can be well preserved at 380 K (LED operating temperature) without phase transition or decomposition, demonstrating the excellent structural and optical thermal stabilities of R/S‐(C14H24N2)2CeBr7. Based on these enantiomers, the fabricated UV‐emitting CP‐LEDs exhibit high polarization degrees of ±1.0%. Notably, the UV‐CPL generated from the devices can significantly trigger the enantioselective photopolymerization of diacetylene with remarkable stereoselectivity, and consequently yield polymerized products with the anisotropy factors of circular dichroism (gCD) up to ±3.9×10‐2, outperforming other UV‐CPL materials and demonstrating their great potential as UV‐polarized light sources.

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“…Hybrid organic–inorganic metal halide perovskites gain substantial attention due to the large absorption coefficients, tunable band gaps, high carrier mobility, long carrier diffusion lengths, and low-cost solution processing, which greatly accelerate the development of solar cells, − light-emitting diodes, − photodetectors, − and lasers. − In particular, the construction of chiral perovskites yields numerous exotic properties, including circular dichroism (CD), , nonlinear chiroptical properties, , ferroelectricity, , and chirality-induced spin selectivity (CISS) effect, , which significantly broadens the applications of perovskites in various fields including circularly polarized light (CPL) photodetectors, , nonlinear optics, memories, and spin-LEDs . The current fabrication of chiral perovskite optoelectronic devices is usually based on the chiral low-dimensional perovskite materials, such as ( R / S -α-PEA)PbI 3 , ( R / S -α-PEA) 2 PbI 4 , ( R / S -β-MPA) 2 MAPb 2 I 7 , and ( R / S -BPEA) 2 PbI 4 .…”

Section: Introductionmentioning

confidence: 99%

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

Bai,

Wang,

et al. 2024

J. Am. Chem. Soc.

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Chiral three-dimensional (3D) perovskites exhibit exceptional optoelectronic characteristics and inherent chiroptical activity, which may overcome the limitations of low-dimensional chiral optoelectronic devices and achieve superior performance. The integrated chip of high-performance arbitrary polarized light detection is one of the aims of chiral optoelectronic devices and may be achieved by chiral 3D perovskites. Herein, we first fabricate the wafer-scale integrated full-Stokes polarimeter by the synergy of unprecedented chiral 3D perovskites (R/S-PyEA)Pb 2 Br 6 and onestep capillary-bridge assembly technology. Compared with the chiral low-dimensional perovskites, chiral 3D perovskites present smaller exciton binding energies of 57.3 meV and excellent circular dichroism (CD) absorption properties, yielding excellent circularly polarized light (CPL) photodetectors with an ultrahigh responsivity of 86.7 A W −1 , an unprecedented detectivity exceeding 4.84 × 10 13 Jones, a high anisotropy factor of 0.42, and high-fidelity CPL imaging with 256 pixels. Moreover, the anisotropic crystal structure also enables chiral 3D perovskites to have a large linear-polarization response with a polarized ratio of 1.52. The combination of linear-polarization and circular-polarization discrimination capabilities guarantees the achievement of a full-Stokes polarimeter. Our study provides new research insights for the large-scale patterning wafer integration of high-performance chiroptical devices.

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The first chiral cerium halide towards circularly-polarized luminescence in the UV region

Cited by 20 publications

References 64 publications

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

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

Efficient Ultraviolet Circularly Polarized Luminescence in Zero‐Dimensional Hybrid Cerium Bromides

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

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