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

et al.

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

Published: Dec. 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

Language: 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

et al.

Materials Horizons, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 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.

Language: Английский

Citations

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

Manoj Balachandran

Advanced Sustainable Systems, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 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.

Language: Английский

Citations

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

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179954 - 179954

Published: March 1, 2025

Language: Английский

Citations

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

S.Y Liu,

Ziyi Shen

et al.

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

Published: April 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

Language: Английский

Citations

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

et al.

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

Published: Oct. 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.

Language: Английский

Citations

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

Yongzhuo Zheng

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1010, P. 177384 - 177384

Published: Nov. 8, 2024

Language: Английский

Citations

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

Yaohua Li,

Chuangchang Lei,

Xiang Xia Wu

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: unknown, P. 11876 - 11882

Published: Nov. 20, 2024

Recently, Mn

Language: Английский

Citations

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

Zunyu Liu

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: unknown, P. 110627 - 110627

Published: Dec. 1, 2024

Language: Английский

Citations

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

et al.

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

Published: Jan. 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.

Language: Английский

Citations

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

et al.

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

Published: Dec. 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

Language: Английский

Citations

0