Halogen-Dependent Deep-Blue Circularly Polarized Emitters with Ultrahigh-Color-Purity Under High Pressure DOI
Shuang‐Quan Zang,

Meng‐En Sun,

Fei Wang

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: July 18, 2024

Abstract Achieving free exciton (FE) emission in low-dimensional (2D, 1D, and 0D) metal halide perovskites is challenging due to the strong electron–phonon coupling effect induced by lead octahedral distortion. Herein, FE behaviors of three new 2D chiral perovskites, (R-3-XPEA)2PbBr4 (PEA = phenethylamine, X F, Cl, Br), were investigated under hydrostatic pressure. (R-3-BrPEA)2PbBr4 (R-3-ClPEA)2PbBr4 exhibited high color–purity deep-blue circularly polarized luminescence (CPL) dominated at pressures 1.7 2.5 GPa, respectively, whereas (R-3-FPEA)2PbBr4 presented broadband warm-white CPL The structural analysis theoretical calculation results demonstrated that pressure reduced penetration depths R-3-BrPEA+ and R-3-ClPEA+ into [PbBr6]4- inorganic frameworks strengthening halogen···halogen (Br···Br Cl···Cl) interactions between organic amines, resulting smaller distortion weaker (R-3-ClPEA)2PbBr4. Thus, pressure-driven enhancement was responsible for remarkable Conversely, could not be effectively suppressed owing lack interactions, leading absence CPL. Our work gives a insight into intrinsic structure-property relationship noncovalent ultrahigh-color-purity behavior perovskites.

Language: Английский

Topological hydrogen-bonded organic frameworks (HOFs) and their electronic applications in sensor, memristor, and neuromorphic computing DOI
Cheng Zhang,

Chenyu Wang,

Chao Li

et al.

Applied Physics Reviews, Journal Year: 2024, Volume and Issue: 11(3)

Published: July 8, 2024

Recently, an emerging class of hydrogen-bonded organic frameworks (HOFs) has become appealing member material family, attributed to their layered self-assembly structures, high-crystalline, and environmentally friendly characteristics, which have rapidly propelled development in the field electronic devices. In this context, we focus on latest category topological HOFs, with particular attention given cutting-edge experimental demonstrations, exceptional electrical performances, promising applications. First, a concise concept fundamental mechanism HOFs are provided, elucidating potential correlation between structural designs properties. Subsequently, comprehensive summary is presented preparation synthesis methods, such as hydrothermal techniques, epitaxial growth, electro-deposition, among others. Notably, advancements HOFs-based electronics thoroughly introduced discussed, along applications sensors, memristors, artificial synapses, neuromorphic computing, human perception systems. Finally, future challenges prospects elaborated upon aim providing valuable guidance for high-performance HOF-based electronics.

Language: Английский

Citations

5
Boosting Multicolor Emission Enhancement in Two-Dimensional Covalent–Organic Frameworks via the Pressure-Tuned π–π Stacking Mode DOI
Yixuan Wang, Yanfeng Yin, Baozhu Yang

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Covalent-organic frameworks (COFs) are dynamic covalent porous organic materials constructed from emissive molecular building blocks. However, most two-dimensional (2D) COFs nonemissive or weakly in the solid state owing to intramolecular rotation and vibration together with strong π-π interactions. Herein, we report a pressure strategy achieve bright multicolor emission yellow red 2D triazine triphenyl imine COF (TTI-COF). Intriguingly, TTI-COF experiences 24-fold enhancement under mild of 2.7 GPa compared initial state. Joint experimental theoretical results reveal that restricted chemical bond vibrations reduced interactions originating offset stacking mode account for significant pressure-induced enhancement. Furthermore, such piezochromic behavior may be ascribed decreased energy gap enhanced intermolecular interaction. Our investigation offers constructive guidelines designing high photoluminescence performance.

Language: Английский

Citations

0
Fluorine-Induced Anomalous Optical Stability and Pressure-Enhanced Emission Property of 0D Lead Perovskite Derivatives DOI
Congcong Chen, Y. M. Zhang, Huan Liu

et al.

Chemistry of Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 16, 2025

Language: Английский

Citations

0
A π − π stacked porous framework for highly efficient second near-infrared photothermal effects and photo-thermo-electric conversion DOI
Yan Yong, Zhenyu Li, Ningning Zhang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 156059 - 156059

Published: Sept. 1, 2024

Language: Английский

Citations

3
Multi-stimuli responsive Pt(II) complexes for information storage and anti-counterfeiting DOI
Yinghao Zhang,

Jiatao Ni,

Yihang Zhu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155049 - 155049

Published: Aug. 23, 2024

Language: Английский

Citations

2
Light-driven ultrafast sensor based on biocompatible solvatochromic metal-organic framework DOI
Maria Timofeeva, Yuliya Kenzhebayeva,

Nikita Burzak

et al.

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

Published: Jan. 1, 2024

The design of fast, endurant, and biocompatible porous frameworks with solvatochromism, aimed at addressing the multiple visual sensing chemicals, is demonstrated.

Language: Английский

Citations

2
Promoted CO2 photoreduction toward HCOOH generation by nucleophilic effect in Co/Mg synergistic catalysis DOI
Luyao Wang,

Siqi You,

Yaru Gong

et al.

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(17), P. 9415 - 9422

Published: Jan. 1, 2024

A bimetallic MOF, CoMg-TCPP, is reported for the photocatalytic reduction of carbon dioxide to formic acid.

Language: Английский

Citations

2
Advancements and synthetic strategies in conjugated covalent organic cages DOI
Jiajia Li, Yanping Yang, Jinghui Yang

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 523, P. 216260 - 216260

Published: Oct. 11, 2024

Language: Английский

Citations

1
Pyrazine-tuned metal cluster-based CuI13 chain and CuI14 layer for efficient photo-thermal synergistic degradation of methyl orange DOI

Guang‐Min Liang,

Dong-Ao Mao,

Kun Zhou

et al.

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: unknown, P. 113608 - 113608

Published: Nov. 1, 2024

Language: Английский

Citations

1
Photocurrent, electrochemical characteristic and photodegradation of two Ag20 cage isomers co-constructed by thiol and carboxylate/sulfonate and induced by CO32– template DOI Creative Commons

Wen-Xuan Xie,

Li Li, Kun Zhou

et al.

Journal of Saudi Chemical Society, Journal Year: 2024, Volume and Issue: 28(4), P. 101885 - 101885

Published: May 27, 2024

Assembly of AgStBu and PhCOOH ligands with the assistance soluble silver salt CH3COOAg/CF3SO3Ag in methanol, N, N-dimethylformamide (DMF) dichloromethane solution, yielded two Ag20 cage isomers co-constructed by thiol carboxylate/sulfonate ligand encapsulating a CO32– anion template, [(CO32–)@Ag20(StBu)10(PhCOO)4(CH3COO)4(DMF)4] (1) [(CO32–)@Ag20(StBu)10(PhCOO)6(CF3SO3)2(DMF)4]·2DMF (2). The template was generated situ fixing atmospheric CO2. precise structures 1 2 were confirmed single-crystal X-ray diffractometry (SCXRD). thermal stability compounds proved thermogravimetric (TG) analysis, their solution characterized nuclear magnetic resonance hydrogen spectroscopy (1H NMR). absorption spectra, photocurrent responses, luminescence investigated. In addition, photodegradation methylene blue (MB) cyclic voltammetry characteristic curves also studied

Language: Английский

Citations

0