Amplified Circularly Polarized and X-ray-Excited Luminescence of Easily Separated Chiral Donor–Acceptor Binaphthalene Imides through a Conformation Locking Strategy DOI

Yang Zhang,

Chenyang Zhao, Jingru Chen

et al.

Chemistry of Materials, Journal Year: 2024, Volume and Issue: 36(9), P. 4806 - 4812

Published: April 18, 2024

Here, we report a feasibly prepared chiral donor–acceptor (D–A) binaphthalene imide scaffold with locked conformation, exhibiting significantly improved luminescent performance compared its open conformation species. The C1-symmetrical based on 1,1′-binaphthol (BINOL) backbone could be synthesized the gram scale only silica column chromatography resolution, which gave photoluminescence quantum yield (PLQY) of about 6%. Further configuration rigidification by etherification BINOL series alkane linkers showed enhanced PLQY up to 37% and turned circularly polarized luminescence (CPL). Moreover, photophysical data theoretical calculations revealed that molecular orbital overlap spin–orbital coupling these imides led activation X-ray excited (XEL) property, was successfully applied in an radiography model. This work not provides methodology for synthesizing novel D–A scaffolds but also highlights potential locking strategy achieving multifunction axially π-conjugated molecules.

Language: Английский

Capillary Manganese Halide Needle‐Like Array Scintillator with Isolated Light Crosstalk for Micro‐X‐Ray Imaging DOI Creative Commons
Wenyi Shao, Tengyue He, Lijie Wang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(21)

Published: Feb. 10, 2024

Abstract The exacerbation of inherent light scattering with increasing scintillator thickness poses a major challenge for balancing the thickness‐dependent spatial resolution and scintillation brightness in X‐ray imaging scintillators. Herein, thick pixelated needle‐like array capable micrometer is fabricated via waveguide structure engineering. Specifically, this involves integrating straightforward low‐temperature melting process manganese halide an aluminum‐clad capillary template. In structure, oriented photons propagate along well‐aligned are confined within individual pixels by aluminum reflective cladding, as substantiated from comprehensive analysis including laser diffraction experiments. Consequently, thanks to isolated light‐crosstalk channels robust output due increased thickness, ultrahigh resolutions 60.8 51.7 lp mm −1 at modulation transfer function (MTF) 0.2 achieved on 0.5 even 1 scintillators, respectively, which both exceed pore diameter arrays’ template ( Φ = 10 µm). As far it known, these among highest reported metal scintillators never demonstrated such Here avenue presented demand high‐resolution across diverse scientific practical fields.

Language: Английский

Citations

21
Circularly Polarized Luminescence Induced by Hydrogen‐Bonding Networks in a One‐Dimensional Hybrid Manganese(II) Chloride DOI
Jing Li,

Qiulian Luo,

Jianwu Wei

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(24)

Published: April 12, 2024

Chiral hybrid metal halides hold great potential as circularly polarized luminescence light sources. Herein, we have obtained two enantiomeric pairs of one-dimensional chiral manganese(II) chloride single crystals, R/S-(3-methyl piperidine)MnCl

Language: Английский

Citations

20
Dynamic Near‐Infrared Circularly Polarized Luminescence Encoded by Transient Supramolecular Chiral Assemblies DOI
Qian Wang,

Hanren Xu,

Zhen Qi

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(32)

Published: May 13, 2024

Abstract Circularly polarized luminescence (CPL) is promising for applications in many fields. However, most systems involving CPL are within the visible range; near‐infrared (NIR) CPL‐active materials, especially those that exhibit high g lum values and can be controlled spatially temporally, rare. Herein, dynamic NIR‐CPL with a value of 2.5×10 −2 was achieved through supramolecular coassembly energy‐transfer strategies. The chiral assemblies formed by between adenosine triphosphate (ATP) pyrene derivative exhibited red signal ( 10 −3 ). further introduction sulfo‐cyanine5 resulted process, which not only led to NIR but also increased . Temporal control these realized introducing alkaline phosphatase fabricate biomimetic enzyme‐catalyzed network, allowing turned on. Based on enzyme‐regulated temporally controllable assemblies, multilevel information encryption system developed. This study provides pioneering example construction materials ability perform temporal via assembly strategy, expected aid design complex more closely resemble natural biological systems.

Language: Английский

Citations

17
Unlocking the Potential of Organic‐Inorganic Hybrid Manganese Halides for Advanced Optoelectronic Applications DOI Open Access
Wei Zhang, Wei Zheng, Lingyun Li

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 5, 2024

Organic-inorganic hybrid manganese(II) halides (OIMnHs) have garnered tremendous interest across a wide array of research fields owing to their outstanding optical properties, abundant structural diversity, low-cost solution processibility, and low toxicity, which make them extremely suitable for use as new class luminescent materials various optoelectronic applications. Over the past years, plethora OIMnHs with different dimensionalities multifunctionalities such efficient photoluminescence (PL), radioluminescence, circularly polarized luminescence, mechanoluminescence been newly created by judicious screening organic cations inorganic Mn(II) polyhedra. Specifically, through precise molecular engineering, series near-unity PL quantum yields, high anti-thermal quenching excellent stability in harsh conditions devised explored applications light-emitting diodes (LEDs), X-ray scintillators, multimodal anti-counterfeiting, fluorescent sensing. In this review, latest advancements development are summarized, covers from fundamental physicochemical properties advanced applications, an emphasis on functionality design especially LEDs detection imaging. Current challenges future efforts unlock potentials these promising also envisioned.

Language: Английский

Citations

16
Achieving Strong Circularly Polarized Luminescence through Cascade Cationic Insertion in Lead‐free Hybrid Metal Halides DOI
Tao Song, Qiang Wang,

Haolin Lu

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(21)

Published: March 28, 2024

Abstract Generating circularly polarized luminescence (CPL) with simultaneous high photoluminescence quantum yield (PLQY) and dissymmetry factor ( g lum ) is difficult due to usually unmatched electric transition dipole moment μ magnetic m of materials. Herein we tackle this issue by playing a “cascade cationic insertion” trick achieve strong CPL (with PLQY ~100 %) in lead‐free metal halides values reaching −2.3×10 −2 without using any chiral inducers. Achiral solvents hydrochloric acid (HCl) N, N ‐dimethylformamide (DMF) infiltrate the crystal lattice via asymmetric hydrogen bonding, distorting perovskite structure induce “intrinsic” chirality. Surprisingly, additional insertion Cs + cation substitute partial (CH 3 2 NH transforms space group achiral but maintains chiroptical activity. Further doping Sb 3+ stimulates as result self‐trapped excitons (STEs) formation disturbing framework. The perovskites indium‐antimony chlorides embedded on LEDs chips demonstrate promising potential emitters. Our work presents rare cases activity highly luminescent from only building blocks spontaneous resolution symmetry breaking.

Language: Английский

Citations

9
New horizons in phosphorus-based emitters: From circularly polarized fluorescence to room-temperature phosphorescence DOI

Bo Yang,

Suqiong Yan,

Shirong Ban

et al.

Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 110837 - 110837

Published: Jan. 1, 2025

Language: Английский

Citations

1
Local symmetry-breaking induces robust circularly polarized luminescence in achiral Dion-Jacobson tin-based perovskites DOI
Jianwu Wei, Dongmei Wu,

Liya Zhou

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160058 - 160058

Published: Jan. 1, 2025

Language: Английский

Citations

1
Self-confining isolated chiral chromophore for circularly polarized organic afterglow from amorphous polymer systems DOI
Chen‐Yu Zhang,

Xin Yan,

Zhisheng Gao

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 485, P. 149886 - 149886

Published: Feb. 22, 2024

Language: Английский

Citations

6
Unveiling the potential of triphenylphosphine salts in tuning organic room temperature phosphorescence DOI
Yiming Zhang,

Xiaomei Wu,

Shujuan Liu

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(70), P. 9328 - 9339

Published: Jan. 1, 2024

This article summarizes the potential of TPP salts in tuning RTP properties and their applications multi-level information encryption, high-level anticounterfeiting tags, X-ray scintillators.

Language: Английский

Citations

6
Lead‐free organic–inorganic hybrid scintillators for X‐ray detection DOI Creative Commons
Haixia Cui, Wenjuan Zhu,

Yongjing Deng

et al.

Aggregate, Journal Year: 2023, Volume and Issue: 5(2)

Published: Nov. 1, 2023

Abstract Scintillators, which can convert high‐energy particles (X‐rays) into detectable low‐energy ultraviolet–visible–near‐infrared photons, are essential components of X‐ray detectors and show extensive practical applications in nondestructive detection medical imaging. Traditionally, inorganic scintillators represented by CsI:Tl have achieved definite progress. However, the harsh preparation conditions, high production cost, poor mechanical properties impede their potential development high‐end imaging field. Organic–inorganic hybrid metal complexes could be excellent alternatives, virtue structural spectral tunability, good solution processability, photophysical properties. This review mainly focuses on eco‐friendly lead‐free (Mn 2+ , Cu + Sb 3+ Sn Ge Ln etc.) complex scintillators. The luminescence mechanisms introduced scintillation performance, such as light yield, limit detection, resolution, etc., is highlighted. Moreover, current challenges perspectives this emerging field described. It hoped to provide some theoretical guidance for continuous new scintillator systems.

Language: Английский

Citations

13