Achieving Near‐Unity Red Light Photoluminescence in Antimony Halide Crystals via Polyhedron Regulation

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(24)

Published: April 15, 2024

Exploration of efficient red emitting antimony hybrid halide with large Stokes shift and zero self-absorption is highly desirable due to its enormous potential for applications in solid light emitting, active optical waveguides. However, it still challenging rarely reported. Herein, a series (TMS)

Language: Английский

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Tunable Efficient White Emission in Holmium Doped Double Perovskites Cs₂KInCl₆ via Antimony Sensitization

Advanced Optical Materials, Journal Year: 2023, Volume and Issue: 11(10)

Published: March 12, 2023

Abstract Recently, ns 2 metal ions (such as Bi 3+ and Sb ) doped double perovskites have captured intense attention for their efficient emission, however, achieving tunable white light emission is always an enormous challenge. Herein, /Ho co‐doped Cs KInCl 6 are proposed, the photoluminescence results show that there two bands, one broad cyan band stems from self‐trapped exciton (STE) in [SbCl ] 3‐ octahedron, while another red derives f‐f transitions of Ho . The processes can act sensitizer to activate which due energy transfer channel STE As concentration increases, luminous color be modulated orange under 315 nm irradiation, even obtained with a quantum yield 90 ± 2% when energy‐transfer efficiency 50%. Finally, single compound white‐light emitting diodes fluorescent anti‐counterfeiting labels based on 0.5%Sb /60%Ho fabricated. This work provides effective strategy achieve lead‐free through lanthanide ion co‐doping.

Language: Английский

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Realizing Color‐Tunable and Time‐Dependent Ultralong Afterglow Emission in Antimony‐Doped CsCdCl₃ Metal Halide for Advanced Anti‐Counterfeiting and Information Encryption

Advanced Optical Materials, Journal Year: 2023, Volume and Issue: 11(14)

Published: April 23, 2023

Abstract Long afterglow luminescent materials have captured intense attention for their unique applications in biological imaging, photodynamic therapy, and optical anti‐counterfeiting. However, achieving highly efficient tunable ultralong emission all‐inorganic metal halides is an open challenge. Herein, Sb 3+ ‐doped hexagonal CsCdCl 3 halide reported via hydrothermal reaction. Upon photoabsorption, the as‐synthesized compounds exhibit dual‐emission bands with a photoluminescence quantum yield (PLQY) of 59.6%, which can be attributed to self‐trapped exciton out strong electron‐phonon coupling. After ceasing excitation 365 nm, bright longest duration lasting up 5000 s witnessed . More importantly, color‐tunable time‐dependent realized regulating doping concentration , should due trap electrons increase gradually under high concentration. Given this unusual characteristics, anti‐counterfeiting information encryption are constructed based on compounds. These findings not only help further understand mechanism halides, but also provide new strategy designing novel materials.

Language: Английский

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Stable Organic Antimony Halides with Near‐Unity Photoluminescence Quantum Yield for X‐Ray Imaging

Laser & Photonics Review, Journal Year: 2023, Volume and Issue: 17(7)

Published: Feb. 19, 2023

Abstract X‐ray imaging technology has been widely used in the fields of environmental monitoring, safety inspection, nondestructive examination, space exploration, and medical diagnosis, among which scintillation materials play a vital role indirectly converting to visible photons. Here, zero‐dimensional organic–inorganic hybrid halide C 50 H 44 P 2 SbCl 5 crystal is prepared via facile antisolvent precipitation method at room temperature. The single displays strong yellow broadband emission centered 592 nm with near‐unity photoluminescence quantum yield 98.42%. Importantly, crystals show great stability irradiation stability. Radioluminescence characterization indicates that exhibit good linear response dose rates along an excellent light 460 photons MeV −1 , surpassing commercial inorganic LuAG:Ce scintillator. spatial resolution ‐based scintillating screen determined be 8.2 lp mm . In conjunction polymer thin film, feature halides offers exciting opportunities for achieving high‐quality flexible imaging.

Language: Английский

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Excitation-Wavelength-Dependent Emission Behavior in (NH₄)₂SnCl₆ via Sb³⁺ Dopant

The Journal of Physical Chemistry Letters, Journal Year: 2023, Volume and Issue: 14(6), P. 1460 - 1469

Published: Feb. 6, 2023

With high photoluminescence efficiency and a simple solution synthesis method, lead halide perovskites are expected to be promising material for display illumination. However, the toxicity environmental sensitivity of hinder its potential applications. Here, we introduced Sb

Language: Английский

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Origin of singlet self-trapped exciton and enhancement of photoluminescence quantum yield of organic–inorganic hybrid antimony(III) chlorides with the [SbCl5]2− units

Nano Research, Journal Year: 2023, Volume and Issue: 16(11), P. 12680 - 12688

Published: Aug. 29, 2023

Language: Английский

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Realizing efficient broadband near-infrared emission and multimode photoluminescence switching via coordination structure modulation in Sb³⁺-doped 0D organic metal chlorides

Materials Horizons, Journal Year: 2024, Volume and Issue: 11(9), P. 2230 - 2241

Published: Jan. 1, 2024

We developed three NIR emitters of Sb 3+ -doped 0D organic metal chlorides and demonstrated their night vision applications in vision. One shows tunable emission characteristics quintuple-mode fluorescence anti-counterfeiting information encryption.

Language: Английский

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Stable Organic‐Inorganic Hybrid Sb(III) Halide Scintillator for Nonplanar Ultra‐Flexible X‐Ray Imaging

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

Published: Nov. 5, 2024

Abstract Flexible scintillator screens with excellent stability and low detection limits are crucial for X‐ray imaging applications. 0D organic metal halide materials have emerged as a strong contender in the fields, owing to their optical characteristics simple maneuverability. Herein, high‐quality large quantities of C 38 H 36 P 2 Sb Cl 8 single crystals synthesized through solution approach. The prepared dimer‐structure [Sb ] 2− exhibit yellow emission near‐unity high photoluminescence quantum yield (PLQY) 99.8%, possess an exceptional light 41300 photons MeV −1 , limit 45.6 nGy air s . On this basis, large‐size ultra‐flexible utilized is by template assembled method, demonstrating spatial resolution 8.15 lp mm screen can achieve even after multiple bending stretching, which also provide clear non‐planar irregular objects. In addition, shows light, heat, irradiation, water. These results not only expand optoelectronic application field organic‐inorganic hybrid antimony halides but promote rapid development efficient scintillators.

Language: Английский

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RGB tri-luminescence in organic–inorganic zirconium halide perovskites

Chemical Science, Journal Year: 2024, Volume and Issue: 15(8), P. 2954 - 2962

Published: Jan. 1, 2024

Materials with two or more fluorescence features under different excitation sources have great potential in optical applications, but luminous materials three emission characteristics been largely undeveloped. Here, we report a novel zero-dimensional (0D) organic-inorganic hybrid ((C

Language: Английский

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Cationic Engineering Strategy to Achieve Controllable Room‐Temperature‐Phosphorescence in Hybrid Zinc Halides

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(17)

Published: April 9, 2024

Abstract Despite rapid progress and wide applications of room temperature phosphorescence (RTP) materials, it is still a great challenge to optimize the RTP activity through rational structural design at molecular level. Herein, successful cationic engineering strategy demonstrated modulate crystal flexibility achieving controllable in new pair metal halides [APML]ZnCl 4 ([APML] = N‐(3‐Aminopropyl)morpholine) [AEML]ZnCl ([AEML] N‐(2‐Aminoethyl)morpholine). Both display blue fluorescence under 365 nm UV. Comparing with longer [APML] + , shorter [AEML] significantly enhances rigidity restrains non‐radiative scattering, boosting photoluminescence quantum yield (PLQY) from 18.89% 22.41%. Synchronously, enhanced promotes inter‐system crossing singlet triplet excited states. As consequence, displays long‐lived green property millisecond scale lifetime contrast blank . Comprehensive investigations demonstrate that energy transfer between inorganic organic components greatly changes redistribution states, resulting distinct activity. The different short‐lived provide color‐time‐dual‐resolved luminescent tag advanced anti‐counterfeiting, etc. This work highlights achieve affording guide rationally materials.

Language: Английский

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