Hydrolysis Reaction‐Induced Phase Regulation of Sb‐doped Zero‐Dimensional Perovskite Cs–In–Cl Nanocrystals for Optoelectronic and Information Encryption Applications DOI Open Access

Junchun Li,

Z.Y. Liu,

Guoqing Tong

и другие.

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 30, 2024

Abstract Phase‐controlled synthesis of all‐inorganic perovskite nanocrystals (NCs) has attracted extensive attention for optoelectronic applications. However, H 2 O, often considered an unfavorable factor, not been found to influence the resulting phase composition. Herein, hydrolysis reaction‐induced regulation 0D Cs–In–Cl: Sb NCs by manipulating O addition is reported. Specifically, crystallizes as Cs 3 InCl 6 : in absence addition. In contrast, triggers injected chlorine source (phenylphosphonic dichloride, PhPOCl ), increased concentration Cl − ions and subsequently promoting formation 4 7 NCs. Moreover, hydrogen bonds formed between isopropanol (IPA) O/oleic acid (OA)/oleylamine (OAm) mitigate immiscibility 1‐octadecene (ODE)/OA/OAm mixture which facilitates passivation OA/OAm on Additionally, it demonstrated that a reversible transition can be achieved heating–cooling cycles. Furthermore, application white light‐emitting diodes, information encryption, fluorescent composite films based showcased. This work only paves new strategy regulate composition perovskites but also introduces novel material multifunctional

Язык: Английский

Multifunctional Applications Enabled by Tunable Multi-Emission and Ultra-Broadband VIS-NIR Luminescence via Energy Transfer in Sn²⁺/Mn²⁺-Doped Lead-Free Zn-Based Metal Halides DOI
Yong Yang, B. C. Ke, Chengzhi Yang

и другие.

Materials Horizons, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Metal halides are widely applied in solid-state lighting (SSL), optoelectronic devices, information encryption, and near-infrared (NIR) detection due to their superior photoelectric properties tunable emission. However, single-component phosphors that can be efficiently excited by light-emitting diode (LED) chips cover both the visible (VIS) NIR emission regions still very rare. To address this issue, (TPA)2ZnBr4:Sn2+/Mn2+ (TPA = [(CH3CH2CH2)4N]+) were synthesized using solvent evaporation method. The Sn2+ doping significantly enhances luminescence of (TPA)2ZnBr4, shifts weak blue light efficient emissions red zones. Spectroscopic studies density functional theory (DFT) calculations reveal attributed different levels 3P1-1S0 [SnBr4]2- tetrahedron caused Jahn-Teller distortion. More importantly, energy transfer from Mn2+ enables ultra-broadband VIS-NIR across 400-1000 nm range, with excitation-dependent characteristics. These suggest has great potential as a high-performance, luminescent material for applications general lighting, source, anti-counterfeiting labels.

Язык: Английский

Процитировано

1
Nitrogen‐Oxygen Co‐Functionalized Waste Cassava Peel‐Derived Carbon Dots for White Led DOI Open Access
Jelby George,

Manoj Balachandran

Advanced Sustainable Systems, Год журнала: 2025, Номер unknown

Опубликована: Янв. 16, 2025

Abstract White light emitting diodes (WLEDs) are most sought after, with the broad spectra ranging from cool to warm white being skillfully utilized create various modes of lighting effects. The fabrication WLEDs is generally sophisticated, involving either multiple components in different regions or single‐component phosphors complex elemental compositions. In present work, utilizing solvent‐tuned carbon dots derived waste cassava peel reported through a facile one‐step microwave‐assisted solvothermal method. show evident UV absorption and correspondingly emit visible when dispersed dimethylformamide (DMF)‐polyvinyl alcohol (PVA) blend, making themselves suitable light–emitting down conversion materials. successful transformation 400 nm LED into WLED general colour rendering index (CRI) 83 correlation temperature (CCT) 4426 K gives promising future outlook toward developing eco economic‐friendly WLEDs.

Язык: Английский

Процитировано

0
Synergistic effect of Manganese stearate encapsulating CsPbI3 perovskite quantum dots with high phase stability DOI
Yajing Chang, Liping Liu, Jinhua Zhang

и другие.

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179954 - 179954

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Assembly‐Induced Carbon Dots Fluorescence Enhancement Enables Single‐Component Tunable White Circular Polarization Luminescence DOI
Haolin Wang,

S.Y Liu,

Ziyi Shen

и другие.

Advanced Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

Abstract White circularly polarized luminescence (WCPL) materials have attracted increasing attention in recent years owing to their numerous applications 3D displays, optoelectronic devices, and sensors. However, the use of single‐component WCPL solid‐state phosphors for display remains challenging. In this study, piperazine its derivatives are used as carriers construct solid luminescent materials. Aspartic acid served a chiral source prepare series carbon dots (Ch‐CDs) with tunable emission from cold warm white. The Ch‐CDs achieved maximum fluorescence quantum yield 34% asymmetry factor 5.1 × 10 −3 . Detailed photodynamic analysis revealed that intrinsic self‐trapped exciton state is primarily responsible spectral broadening Ch‐CDs. addition, formation curved nanoribbons identified key WCPL. Finally, white light film successfully fabricated, demonstrating potential light‐emitting diodes optical

Язык: Английский

Процитировано

0
Opportunities and challenges of lead-free metal halide perovskites for luminescence DOI Creative Commons
R.-S. Tan, Zhenyu Liu, Zhigang Zang

и другие.

Chemical Science, Год журнала: 2024, Номер unknown

Опубликована: Окт. 25, 2024

In this review, the preparation methods of LFMHPs are analyzed and discussed. The strategies for improving performance white LEDs based on also demonstrated. Finally, their future challenges perspectives explored.

Язык: Английский

Процитировано

1
Tunable double emission of Sb3+/Mn2+ doping stabilized organic-inorganic hybrid zinc-based halides DOI
Liwen Liu, Wenqing Wei,

Yongzhuo Zheng

и другие.

Journal of Alloys and Compounds, Год журнала: 2024, Номер 1010, С. 177384 - 177384

Опубликована: Ноя. 8, 2024

Язык: Английский

Процитировано

1
Environmentally-Friendly Europium-Based Yellow Perovskite Nanocrystals with Near-Unit Efficiency for White LED DOI

Yaohua Li,

Chuangchang Lei,

Xiang Xia Wu

и другие.

The Journal of Physical Chemistry Letters, Год журнала: 2024, Номер unknown, С. 11876 - 11882

Опубликована: Ноя. 20, 2024

Recently, Mn

Язык: Английский

Процитировано

1
Understanding perovskite light-emitting diodes through transmission electron microscopy: materials structure, optical regulation and devices DOI
J.-Y. Zhang, Shuwen Yan,

Zunyu Liu

и другие.

Nano Energy, Год журнала: 2024, Номер unknown, С. 110627 - 110627

Опубликована: Дек. 1, 2024

Язык: Английский

Процитировано

1
Synchronously improved luminescence efficiency and thermal stability of organic–inorganic chloride single crystals through doping of Sb3+ DOI
Zongqi Chen,

A. Li,

Yushan Xie

и другие.

New Journal of Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Synchronously improved luminescence efficiency and thermal stability of (CH 3 ) 4 NMnCl :Sb 3+ crystals through doping Sb exhibits potential applications in white LEDs.

Язык: Английский

Процитировано

0
Hydrolysis Reaction‐Induced Phase Regulation of Sb‐doped Zero‐Dimensional Perovskite Cs–In–Cl Nanocrystals for Optoelectronic and Information Encryption Applications DOI Open Access

Junchun Li,

Z.Y. Liu,

Guoqing Tong

и другие.

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 30, 2024

Abstract Phase‐controlled synthesis of all‐inorganic perovskite nanocrystals (NCs) has attracted extensive attention for optoelectronic applications. However, H 2 O, often considered an unfavorable factor, not been found to influence the resulting phase composition. Herein, hydrolysis reaction‐induced regulation 0D Cs–In–Cl: Sb NCs by manipulating O addition is reported. Specifically, crystallizes as Cs 3 InCl 6 : in absence addition. In contrast, triggers injected chlorine source (phenylphosphonic dichloride, PhPOCl ), increased concentration Cl − ions and subsequently promoting formation 4 7 NCs. Moreover, hydrogen bonds formed between isopropanol (IPA) O/oleic acid (OA)/oleylamine (OAm) mitigate immiscibility 1‐octadecene (ODE)/OA/OAm mixture which facilitates passivation OA/OAm on Additionally, it demonstrated that a reversible transition can be achieved heating–cooling cycles. Furthermore, application white light‐emitting diodes, information encryption, fluorescent composite films based showcased. This work only paves new strategy regulate composition perovskites but also introduces novel material multifunctional

Язык: Английский

Процитировано

0