Temperature‐ and Pressure‐Dependent Emissions and Crystal‐ Glass Transition of a Hybrid Manganese Bromide† DOI
Kai Li, Ziying Li, Hang Dong

et al.

Chinese Journal of Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Comprehensive Summary Herein, the temperature‐ and pressure‐stimulated responsive behavior as well crystal‐glass phase transition of a new zero‐dimensional hybrid manganese bromide [4‐MTPP] 2 [MnBr 4 ] [4‐MTPP + = (4‐methoxybenzyl)tris(phenyl)phosphonium)] were reported. Our experiment results demonstrate that shows typical green photoluminescence emission centered at 522.4 nm excited by UV light, with high quantum yields value 79.36% large lifetime 368.6 μs, attributing to its direct bandgap electronic structure. Further, presents monotonically blue shift increased temperature, originating from decreased crystal field strength where Mn 2+ stays owing lattice thermal expansion effect. On contrary, pressure increases, exhibits progressive red shift, which can be attributed due effect pressure‐induced shrinkage. Meanwhile, quenched successfully restored when returns ambient pressure. In addition, crystals show temperature 74 °C. Intriguingly, melt‐quenched glass under light excitation 302.2 μs.

Language: Английский

Hydrogen bonding evolution and efficient blue light emission in a series of Zn-based organic–inorganic hybrid metal halide crystals DOI
Qi Zhang,

Tianwen Huang,

Zheyuan Liu

et al.

Science China Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Language: Английский

Citations

2
Zn-Doped Organic–Inorganic Hybrid Mn(II) Halides with Ultra-High PLQY and Stability for Eco-Friendly Display Backlights DOI

Meiqing Yan,

Jiapeng Yang,

Enrou Mei

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 14, 2025

Language: Английский

Citations

2
Defect Engineering for Enhanced Charge Carrier Storage in Zirconium Stannum Halide Perovskites: Advancements in Low‐Temperature Data Storage and X‐Ray Imaging DOI Open Access
Tianshuai Lyu, Haisong Li, Zhanhua Wei

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract Optimizing charge carrier storage in trap‐controlled halide perovskites poses a significant challenge, particularly due to the varying electronic properties and trap dynamics across temperature range from ≈100 400 K. This dependence affects both efficiency of generation their retention. In this study, substantial advancements performance zirconium stannum are reported through targeted defect engineering. By modulating composition Cs 2 Sn 1‐x Zr x Cl 6 incorporating dopants Cr 3+ , Ga Bi Te 4+ remarkable enhancements X‐ray triggered capacity realized. Notably, ZrCl doped with or exhibits three fold increase 100 300 K, significantly outperforming state‐of‐the‐art BaFBr(I):Eu 2+ red afterglow Y O S:Eu phosphor. The :yTe demonstrates over 40 times greater wide K achieves low detection limit 99.16 nGy for dosimetry applications. Furthermore, :0.03Te exceptional persistent luminescence lasting 14 h at 180 295 research underscores high‐performance capabilities engineered perovskites, paving way application advanced technologies temperatures.

Language: Английский

Citations

1
Enhanced Stability of Melt‐Processable Organic–Inorganic Hybrid Manganese Halides for X‐Ray Imaging DOI
Shichuan Chen, Chongfeng Guo, Shan‐Ci Chen

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 24, 2024

Abstract Mn‐based metal halides scintillators with high photoluminescence quantum yield (PLQY) have recently emerged as promising large‐size candidates for X‐ray imaging but still remains difficult challenge in stability and processing temperatures. Here, three manganese are designed by introducing branched chains into organic cations extending the carbon chains, namely (i‐PrTPP) 2 MnBr 4 , (i‐BuTPP) (i‐AmTPP) successfully lowered melting point of to 120.2 °C. Three materials show striking light yields 59 000, 40 52 000 photons MeV −1 respectively. The lowest detection limits 42.30, 50.92, 45.71 nGy s Meanwhile, compared their counterparts linear introduction has significantly enhanced glass state. A transparent been prepared using a melt‐quenching method, which exhibited 80% transmittance at 400–700 nm. is utilized imaging, achieving spatial resolution up 46.6 lp mm . This result provides new approach enhancing performance such scintillator materials.

Language: Английский

Citations

5
High‐Resolution X‐Ray Imaging With 0D Organic–Metal Halide Scintillator Featuring Reversed Exciton Trapping DOI Open Access

Rui‐Xuan Qian,

Jian Lü,

Meng Cui

et al.

Laser & Photonics Review, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 7, 2024

Abstract Scintillators, essential for applications in nuclear medicine, radiation detection, and industrial inspection, convert high‐energy into visible light. Manganese (Mn)‐based inorganic–organic hybrid materials are distinguished by their thermal stability, mechanical strength, flexibility. However, the effects of temperature on Mn(II)‐based scintillators have not been clearly analyzed, making elucidation temperature‐dependent luminescence mechanisms particularly important. A notable advancement is synthesis Mn‐ 1 nanocrystals (NCs) using methyltriphenylphosphonium chloride (mtppCl) MnCl₂. These NCs exhibit distinctive photoluminescence luminescence: intensity decreases from 77 to 150 K but paradoxically increases at higher temperatures due anomalous exciton behavior [MnCl₄] 2 ⁻ tetrahedra. Besides, achieve a detection limit 1.01 µGy air /s, surpassing medical diagnostic standards outperforming commercial such as Bi₄Ge₃O₁₂ (BGO). Additionally, they show exceptional stability under continuous irradiation can be incorporated flexible scintillating film with resolution 11.3 lp/mm an MTF 0.2. The current study has further refined mechanism optimizes properties wider range applications.

Language: Английский

Citations

5
Pseudohalide Anions Driven Structural Modulation in Distorted Tetrahedral Manganese(II) Hybrids toward Tunable Green‐Red Emissions DOI
Shuai Zhang, Kai Han, Zhiguo Xia

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 26, 2024

Mn(II)-based halides have recently garnered significant interest as emerging luminescence materials for diverse photonic applications. Generally, Mn(II) hybrids with tetrahedral coordination show green emission, however, ones octahedral give red emission. Herein, we design the synthesis of pseudohalide hybrids, (RPh

Language: Английский

Citations

5
Rational Design of Photofunctional Ionic Manganese(II) Bromide Materials Through Isomer Engineering for High-Performance X-Ray Imaging DOI

Xinghao Sheng,

Xiao-Kang Zheng, Tao Peng

et al.

Journal of Inorganic and Organometallic Polymers and Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 4, 2025

Language: Английский

Citations

0
Tuning phase transition and fluorescence quenching in 0D organic–inorganic hybrid materials by precise organic cation modification DOI
L. Chen, Zining Zhou,

Yawen Yang

et al.

Dalton Transactions, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Three novel organic–inorganic hybrids exhibit increased phase transition temperatures and distinct temperature-dependent fluorescence quenching by progressive organic group substitution.

Language: Английский

Citations

0
Excitation‐Wavelength‐Induced Dual‐Band Fluorescence of Copper Halides for Multi‐Mode Encryption and Anti‐Counterfeiting Applications DOI Open Access
Zhigang Zang, Xin Yang, Xuyong Yang

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Abstract Low‐dimensional metal halides have emerged as promising anti‐counterfeiting materials. However, achieving a multi‐mode and multi‐color system in remains challenging. In this study, copper‐halide (TBP) 2 Cu 4 Br 6 (TBP + = C 16 H 36 P ) single crystals are synthesized using cooling crystallization method, which exhibits efficient dual‐band emissions (542 708 nm), large Stokes shifts (282 330 high photoluminescence quantum yield (PLQY) of 92.7% for 542 nm. These exceptional properties attributed to the unique 0D structure crystals, facilitates formation two different self‐trapped excitons (STEs). Furthermore, based on , digital integrated is designed with Morse code information encryption, demonstrating applications security anti‐counterfeiting. This work not only illustrates an emitter copper but also paves way systems.

Language: Английский

Citations

0
Luminescent Manganese(II) Iminophosphorane Derivatives DOI Creative Commons

D. Piccolo,

Jesús Castro, Daniele Rosa‐Gastaldo

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(6), P. 1319 - 1319

Published: March 14, 2025

The reaction between the iminophosphorane ligand N-phenyl-1,1,1-triphenylphosphanimine (NPh=PPh3) and anhydrous manganese(II) halides allowed isolation of complexes with general formula [MnX2(NPh=PPh3)2] (X = Cl, Br, I). compounds showed luminescence in green region attributed to 4T1(4G)→6A1(6S) transition metal centre tetrahedral field, which was superimposed cases X Cl Br on weak ligand-centred fluorescence. emission excitation spectra were compared those free related zinc(II) bromo-complex. DFT calculations bromo-complex helped rationalise experimental data. protonation NPh=PPh3 led formation iminium cation [NHPh=PPh3]+, used as a building block for synthesis organic–inorganic hybrids [NHPh=PPh3]2[MnX4] crystal structure [NHPh=PPh3]2[MnBr4] determined by means X-ray diffraction. Green photoluminescence associated metal-centred also observed hybrids, higher quantum yields respect neutral complexes. In case I, from that tetraiodomanganate anion upon compound near–UV light.

Language: Английский

Citations

0