Reversible Asymmetric Deformation Modulating Dexter Energy Transfer in Manganese Halide Perovskite with Temperature‐pressure Equivalence Effect DOI Open Access
Yangyang Cai, Siyu Yan, Xinran Du

и другие.

Small, Год журнала: 2024, Номер unknown

Опубликована: Дек. 17, 2024

Deformation of metal halide perovskite can induce many interesting properties. This study focuses on a manganese-based organic-inorganic with unique structure in which tetrahedral and octahedral coordination coexist single crystal unit cell. emits at 519 615 nm room temperature. In contrast to conventional perovskites, this regulates the Dexter energy transfer between two modes through asymmetric deformation without phase transition, producing reversible tunable photoluminescence. Notably, under atmospheric pressure, as temperature increases from liquid nitrogen 135 °C, luminescence color shifts progressively red CIE coordinate (0.59, 0.27) yellow green (0.33, 0.56), excellent reversibility. Additionally, temperature, orange (0.54, 0.42) (0.61, pressure 1 atm 7.5 GPa. novel coexisting has temperature-pressure equivalence effect modulating luminescent changes. It tunes emission by forming deformations contraction (or expansion) tetrahedra expansion contraction) octahedra upon stimulation, providing new pathway tune perovskites.

Язык: Английский

Component/Stimulus‐Dependent Multi‐Exciton Emission in Zr(IV)‐Based Organic Metal Halides Triggered by Supramolecular Assembly and Antimony Doping DOI Open Access
Hui Peng, Wei Tian, Qilin Wei

и другие.

Laser & Photonics Review, Год журнала: 2025, Номер unknown

Опубликована: Янв. 30, 2025

Abstract Recently, Sb 3+ ‐activated 0D Zr(IV)‐based metal halides have gained enormous attention for their unique optical properties. However, realizing efficient white emission and multiple reversible emissions in a single system remains great challenge. Parallelly, the currently reported organic are mainly through aimless regulation of type A‐site cations, severely limiting development. Herein, all‐inorganic Cs 2 ZrCl 6 :Sb is employed as conformational model, three different compounds ‐doped [18‐crown‐6@A] (A = K, Rb, Cs) developed via supramolecular assembly. All show tunable with luminous efficiency 91.28% [18‐crown‐6@K] , 84.84% [18‐crown‐6@Rb] 78.63% [18‐crown‐6@Cs] which shall stem from ‐induced multi‐exciton [SbCl ] 3− octahedron. Particularly, strong interaction can enhance structural rigidity suppress nonradiative transitions, dominated reason exhibits emission. The component/excitation/temperature/moisture‐dependent PL switching characteristics observed allows to demonstrate applications advanced anti‐counterfeiting information encryption. Moreover, single‐component light‐emitting diode also fabricated, shows high color rendering index 96.1. Therefore, work provides feasible scheme designing Zr(IV) fascinating

Язык: Английский

Процитировано

2
Multi-Dimensional Dynamic Fluorescence of Perovskite Driven by Light/Heat for Anti-Counterfeiting and Encryption in Five-Dimensional Codes DOI
Peng Zhang, Xin Chen, Jing Li

и другие.

ACS Photonics, Год журнала: 2025, Номер unknown

Опубликована: Март 31, 2025

Язык: Английский

Процитировано

1
Spatial & Temporal Dual-Resolved Anti-Counterfeiting Applications in a Long Afterglow System Based on Bismuth Halides DOI
Xin Zhang, Jie Hao, Maolin Cai

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 15, 2025

While anticounterfeiting systems based on long persistent luminescence (LPL) materials demonstrate a mature trend, the integration of tunable luminescent lifetimes and emission colors in LPL-based remains challenge. Herein, we propose temporal spatial strategy utilizing novel zero dimensional (0D) metal halides, specifically (PBA)3BiCl6:xSb3+ (PBA = 4-Phenylbenzylamine, x 0, 0.05, 0.1, 0.15), which exhibit characteristics. A controllable color transition can be observed from green to white orange by varying excitation wavelength, accompanied different afterglow durations LPL emission. Additionally, various are at delay times. Furthermore, controlled duration is achieved through Sb3+ doping (PBA)3BiCl6, attributed triplet energy transfer (TET) process. noticeable when using mobile phone's flashlight as source, enhancing portability light source. The multifaceted tuning modulation establish foundation for multicolor time-resolved anticounterfeiting, significantly elevating security level advanced portable systems.

Язык: Английский

Процитировано

0
Site Specific In3⁺‐Alloying Unlocks Intense Photoluminescence and High Stability in Antimony Halide Hybrids for WLED and Anticounterfeiting Applications DOI
Faizan Ahmad, Mohamed Saber Lassoued, Qian‐Cheng Luo

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 19, 2025

Abstract While metal doping strategies have proven effective in regulating the bandgap and enhancing photophysical properties of hybrid halides, site‐specific atom alloying by mixing metals different elements offers a new route for material modification. Here an antimony halide with formula (C₄H₁₂N₂)₅[(SbCl₅)₂(SbCl₆)Cl₄] ( Py‐SbCl ) is shown crystallographically independent alternating square pyramidal [SbCl₅] octahedral [SbCl₆] sites sandwiched organic layers. Interestingly, site can be fully replaced In 3+ ions, forming alloyed compound (C₄H₁₂N₂)₅[(SbCl₅)₂(InCl₆)Cl₄] Py‐SbInCl ). More importantly, latter shows near‐unity photoluminescence quantum yield 97%, which ≈7 times enhancement compared to pristine compound. This mainly due much‐enhanced Young's modulus, higher radiative decay rates longer electron transient rates, presumably stemming from shorter In─Cl bond distances dipole moments, as revealed cocktail study X‐ray single‐crystal crystallography, density functional theory, femtosecond absorption spectroscopy so on. addition, it that excellent yellow phosphor used white light‐emitting diodes other applications such counterfeiting. Therefore, making compounds may open design approach bimetallic materials.

Язык: Английский

Процитировано

0
Temperature/water triggered reversible emission transition in a one-dimensional Mn(ii)-based metal halide DOI
Yue Wu, Xin Zhang, Bo Zhang

и другие.

Journal of Materials Chemistry C, Год журнала: 2024, Номер 12(40), С. 16471 - 16477

Опубликована: Янв. 1, 2024

The achievement of a novel and feasible design strategy for temperature/water stimuli-responsive sensing technology.

Язык: Английский

Процитировано

1
Strategic engineering of cationic systems for spatial & Temporal Anti-Counterfeiting applications in Zero-Dimensional Mn(II) halides DOI
Yue Wu, Xin Zhang, Di Zhao

и другие.

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 678, С. 430 - 440

Опубликована: Сен. 14, 2024

Язык: Английский

Процитировано

1
Reversible Asymmetric Deformation Modulating Dexter Energy Transfer in Manganese Halide Perovskite with Temperature‐pressure Equivalence Effect DOI Open Access
Yangyang Cai, Siyu Yan, Xinran Du

и другие.

Small, Год журнала: 2024, Номер unknown

Опубликована: Дек. 17, 2024

Deformation of metal halide perovskite can induce many interesting properties. This study focuses on a manganese-based organic-inorganic with unique structure in which tetrahedral and octahedral coordination coexist single crystal unit cell. emits at 519 615 nm room temperature. In contrast to conventional perovskites, this regulates the Dexter energy transfer between two modes through asymmetric deformation without phase transition, producing reversible tunable photoluminescence. Notably, under atmospheric pressure, as temperature increases from liquid nitrogen 135 °C, luminescence color shifts progressively red CIE coordinate (0.59, 0.27) yellow green (0.33, 0.56), excellent reversibility. Additionally, temperature, orange (0.54, 0.42) (0.61, pressure 1 atm 7.5 GPa. novel coexisting has temperature-pressure equivalence effect modulating luminescent changes. It tunes emission by forming deformations contraction (or expansion) tetrahedra expansion contraction) octahedra upon stimulation, providing new pathway tune perovskites.

Язык: Английский

Процитировано

1