Photocycloaddition of Zero-Dimensional Metal Halide Hybrids with Reversible Photochromism DOI
Xiaohui Liu,

Chudong Chen,

Yonghong Xiao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(24), P. 31313 - 31321

Published: June 5, 2024

In this work, two zero-dimensional (0D) metal halide hybrids L2ZnBr4 [1, L = (E)-4-(2-(1H-pyrrol-3-yl)vinyl)-1-methylpyridin-1-ium] and L6Pb3Br12 (2) were prepared, which demonstrated photochromism photoinduced cracking. Upon irradiation at 450 nm, a single crystal-to-single crystal transformation occurred as result of the [2 + 2] photocycloaddition L. Interestingly, compared to complete in 1, only two-thirds monomers could be photodimerized 2 because difference orientation. 1 shows reversible photochromic behavior including rapid response time, few cracks, high conversion rate, good reaction reversibility, while exhibits no significant color change but distinct cracking large local lattice strain induced by inhomogeneous anisotropic deformation. Moreover, results shift photoluminescence 2, attributed variation conjugation π electrons distortion clusters. As proof-of-concept, optical writing is for 1. These findings provide new insights into design stimuli-responsive multifunctional materials.

Language: Английский

Zero-dimensional halide hybrid bulk glass exhibiting reversible photochromic ultralong phosphorescence DOI Creative Commons

Fei Nie,

Dongpeng Yan

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 29, 2024

Dynamically responsive materials, capable of reversible changes in color appearance and/or photoemission upon external stimuli, have attracted substantial attention across various fields. This study presents an effective approach wherein switchable modulation photochromism and ultralong phosphorescence can be achieved simultaneously a zero-dimensional organic-inorganic halide hybrid glass doped with 4,4´-bipyridine. The facile fabrication large-scale glasses is accomplished through combined grinding-melting-quenching process. persistent luminescence regulated the photochromic switch induced by photo-generated radicals. Furthermore, incorporation aggregation-induced chirality effect generates intriguing circularly polarized luminescence, optical dissymmetry factor (g

Language: Английский

Citations

57
Low thermal quenching of metal halide-based metal–organic framework phosphor for light-emitting diodes DOI Creative Commons
Xiao‐Gang Yang, Ying‐Jun Chen,

Pei-Pei Yin

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(35), P. 14202 - 14208

Published: Jan. 1, 2024

A green MOF phosphor can maintain 84% of its initial emission intensity after being heated to 150 °C, exceeding several commercial inorganic phosphors.

Language: Английский

Citations

10
Purely organic room temperature phosphorescent materials toward organic light‐emitting diodes DOI Creative Commons
Hui Li, Cheng Chen,

Z.Z. Ye

et al.

FlexMat., Journal Year: 2024, Volume and Issue: 1(2), P. 173 - 192

Published: June 14, 2024

Abstract Purely organic room temperature phosphorescence (RTP) materials have shown broad application prospects in light‐emitting diodes (OLEDs) due to their theoretical 100% exciton utilization, cost‐effectiveness, and flexibility. In recent years, with the deepening of research, various luminescent mechanisms been proposed, RTP made significant progress, which effectively applied OLEDs. This article comprehensively reviews research progress OLEDs introduces development a series high‐efficiency from perspective molecular design strategies photophysical properties. These conclusions draw roadmap address inherent challenges utilizing specifically advance investigation

Language: Английский

Citations

9
Multi‐Dimensional Color Tunable Long Persistent Luminescence in Metal Halide‐Based CPs Through Precise Manipulation of Electronic and Steric Effects DOI Open Access
Dan Wang, Jingchuan Zhu,

Xin‐Qi Chen

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 5, 2025

Regulating strategies for long persistent luminescence (LPL) are always in high demand. Herein, a series of coordination polymers (CPs) (SUST-Z1-Z4) fabricated using 1,10-phenanthroline derivatives involving different substituents (─H, ─CH

Language: Английский

Citations

1
Cr-Free Bismuth-Based Persistent Luminescence Nanoparticle Composite for Cancer Theranostics DOI

Ruxiangul Aiwaili,

Tianqi Zhao,

Renagul Abdurahman

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(15), P. 17759 - 17767

Published: July 24, 2024

Near-infrared (NIR) persistent luminescence nanoparticles (PLNPs) showed great potential for bioimaging due to their integration of non-in situ excitation and deep tissue penetration. However, PLNPs are often introduced with Cr3+ ions as the NIR emission centers. Herein, we report Cr-free Bi2Ga3.985O9:1.5% Fe3+ (BGF), BGF under 310 nm exhibited afterglow at 794 in first biological imaging window (650–950 nm), duration 3 h. was grafted hydroxyl groups then polydopamine (PDA) indocyanine green (ICG) through π–π stacking hydrophobic interactions, PLNP–PDA–ICG composite. Bi composite, a heavy atom element, exhibits computed tomography (CT) contrast capacity, while PDA is photothermal agent, ICG excited produce reactive oxide species photodynamic therapy. The afterglow/CT dual-modality imaging-guided photothermal/photodynamic combination therapy validated vitro/vivo therapeutic applications. This work provides PLNP composite drug-free theranostics low toxicity.

Language: Английский

Citations

8
Simplifying Complexity: Integrating Color Science for Predictable Full-color and On-demand Persistent Luminescence Using Industrial Disperse Dyes DOI Creative Commons
Guowei Xiao, Xiaoyan Wang, Xiaoyu Fang

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Developing color-tunable ultralong room temperature phosphorescence (RTP) materials with variable afterglow is essential for applications in displays, sensors, information encryption, and optoelectronic devices. However, designing full-color RTP persistent luminescence remains a significant challenge. Here, we propose straightforward strategy to achieve predictable using readily available disperse dyes polymeric systems,

Language: Английский

Citations

5
Guest‐Dependent Stimuli‐Responsive Photoluminescence in 0D Antimony Chlorides for Anticounterfeiting and Encryption Applications DOI
Wenzhi Li, Xin Mao, Hong Yin

et al.

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

Published: Sept. 28, 2024

Abstract 0D lead‐free metal halides with stimuli‐responsive photoluminescence (PL) have attracted great attention as promising smart materials for advanced anticounterfeiting and information encryption. However, designing high‐performance remains a challenge. Herein, solvent guest tuning strategy to develop is proposed. Three novel highly yellow‐emissive host‐guest systems, TMA 2 SbCl 5 ·X (TMA: (CH 3 ) 4 N + , X = DMSO, DMF, MeCN) are synthesized. Under heat stimuli, (X DMSO DMF) exhibits PL on‐off switching, while ·MeCN shows color change from yellow orange, due structural phase transitions. Particularly, ·DMSO demonstrate fast response within 50 s at temperatures above 353 K. Detailed in situ XRD diffraction study unveils the role of molecules regulation For first time, it found that systems possess guest‐dependent evolution results different stimuli. In addition, moister can also trigger transition induce switching. The remarkable stimuli performance makes these hybrids encryption applications. These findings provide new insights development halide materials.

Language: Английский

Citations

5
By employing racemization strategies to simultaneously enhance the quantum yield, lifetime, and water stability of room-temperature phosphorescent materials DOI Creative Commons

Zenggang Lin,

Peng Zhang, Fuqiang Song

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(21), P. 8052 - 8061

Published: Jan. 1, 2024

Room temperature phosphorescence (RTP) materials are increasingly recognized for their superior luminescent properties, which pivotal in applications such as anti-counterfeiting, information storage, and optoelectronics. Despite this, the sensitivity of most RTP systems to humidity presents a significant challenge achieving durable performance aqueous environments. This study proposes strategy enhance organic room-temperature through racemization. By incorporating external racemates various chiral phosphors-NDBD-Ph, NDBD-Ph-Ph, NDBD-CH3, NDBD-O-CH3-into polyacrylonitrile (PAN) matrix, we significantly properties (quantum yield, lifetime, afterglow-time) resultant films. enhancement can be attributed increased density racemic molecules matrix spin-orbit coupling (SOC), facilitating development long-lasting polymer system water. Notably, rac-NDBD-Ph@PAN film exhibits persistent bright turquoise afterglow, even after immersion water month. Furthermore, first time, achieved an enhanced green cyan response pH variations under both acidic alkaline conditions (pH = 2-12), with maximum emission intensity increasing up threefold. The remarkable stability, reversible characteristics, this offer promising potential dynamic encryption

Language: Английский

Citations

4
Modulation of Solid-State Fluorescence Properties for Anthracene Chalcone Heterocyclic Compounds by Charge-Transfer Cocrystal Self-Assembly: Molecular Stacking Mode and DFT Analysis DOI
Zhouyu Jiang, Yue Zhang, Cunbin Du

et al.

Crystal Growth & Design, Journal Year: 2024, Volume and Issue: 24(14), P. 6036 - 6050

Published: July 1, 2024

Language: Английский

Citations

4
Achieving Near‐Infrared Phosphorescence Supramolecular Hydrogel Based on Amphiphilic Bromonaphthalimide Pyridinium Hierarchical Assembly DOI Open Access
Q. Wang Song, Zhenliang Liu, Jinwei Li

et al.

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

Published: Aug. 26, 2024

Abstract Phosphorescent supramolecular hydrogels are currently a prevalent topic for their great promise in various photonic applications. Herein, an efficient near‐infrared (NIR) phosphorescence hydrogel is reported via the hierarchical assembly strategy aqueous solution, which fabricated from amphiphilic bromonaphthalimide pyridinium derivative (G), exfoliated Laponite (LP) nanosheets, and polymeric polyacrylamide (PAAm). Initially, G spontaneously self‐aggregates into spherical nanoparticles covered with positively charged units emits single fluorescence at 410 nm. Driven by electrostatic interactions negatively subsequently function as cross‐linked binders coassemble LP engendered red room‐temperature (RTP) up to 620 Benefiting hydrogen‐bonding interactions‐mediated physical cross‐linkage, further introduction of PAAm not only significantly elevates mechanical strength showing fast self‐healing capability, but also increases lifetime 2.49 4.20 ms, especially generating even higher temperature ( τ 363 K = 2.46 ms). Additionally, RTP energy transfer occurs after doping small amount organic dye heptamethine cyanine (IR780) acceptor hydrogels, resulting long‐lived NIR emission 823 nm high donor/acceptor ratio, successfully applied cell labeling window.

Language: Английский

Citations

4