Rational Design of Single‐Component White‐Light Emissive Molecular Copper Clusters DOI Creative Commons

Alain Rocheteau,

Lanig Lemeur,

Marie Cordier

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 13(2)

Published: Nov. 21, 2024

Abstract The development of low‐cost and earth‐abundant phosphors for substituting expensive noble metals toxic lead materials is currently major importance sustainable solid‐state lighting technologies. Hybrid copper halide are receiving considerable attention due to their unique diverse structural photophysical properties combined low cost toxicity. This article reports the rational design iodide compounds developing single‐component white light emitters. By a ligand engineering strategy, energy layout molecular clusters can be adjusted variation in relative intensity two emission bands obtained, enabling emitted. Temperature dependence this dual‐emission feature also allows high contrast luminescence thermochromism. Thanks good solubility properties, studied have been successfully incorporated within organic polymer leading with processability suitable application development. Therefore, potential applicability these composite has demonstrated various fields as ratiometric thermometry, emitters phosphor‐converted white‐light emitting diodes, ink anticounterfeiting properties. study highlights power strategy develop multifunctional based on light‐emitting materials.

Language: Английский

Zero-Dimensional Copper(I) Halide Microcrystals as Highly Efficient Scintillators for Flexible X-ray Imaging DOI
Na Lin,

Xin Wang,

Hongyan Zhang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(31), P. 41165 - 41175

Published: July 25, 2024

Commercially available rare-earth-doped inorganic oxide materials have been widely applied as X-ray scintillators, but the fragile characteristics, high detection limit, and harsh preparation condition seriously restrict their wide applications. Furthermore, it remains a huge challenge to realize flexible imaging technology for real-time monitoring of curving interface complex devices. To address these issues, we herein report two isostructural cuprous halides zero-dimensional (0D) [AEPipz]CuX3·X·H2O (AEPipz = N-aminoethylpiperazine, X Br I) with controllable size nanosize crystal highly efficient scintillators toward imaging. These exhibit cyan photoluminescence radioluminescence emissions highest quantum yield 92.1% light 62,400 photons MeV–1, respectively, surpassing most commercially scintillators. Meanwhile, ultralow limit 95.7 nGyair s–1 was far below dose required diagnosis (5.5 μGyair s–1). More significantly, film is facilely assembled excellent foldability crack resistance, which further acts scintillation screen achieving spatial resolution 17.4 lp mm–1 in imaging, demonstrating potential application wearable radiation radiography. The combined advantages yield, low flexibility promote 0D promising

Language: Английский

Citations

9
Ultra Broad‐Band Excitable Organic–Inorganic Copper(I) Halides: Large‐Scale Synthesis, Outstanding Stability, and Highly Efficient White Light‐Emitting Diodes Application DOI

Lingling Xie,

Zheng Liu,

Henan Yang

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(27)

Published: June 25, 2024

Abstract Organic–inorganic copper(I) halides (OICHs) have recently attracted great attentions for their unique optoelectronic properties. However, most of them poor stability and narrow excitation in UV region, which seriously hinder applications efficient white light‐emitting diodes (WLEDs). Herein, 0D (C 19 H 18 P) 2 Cu 4 I 6 with super broad‐band (300–500 nm) yellow emission the absolute photoluminescence quantum yield 87.4% is synthesized a quantity gram scale. Specifically, possesses exceptional thermal‐, photo‐, air‐stability, can maintain even if soaked water, ethyl acetate, isopropanol over 30 days. WLEDs remarkable color under various driven currents are fabricated using 450, 400, 365, 310 nm LED chips. The ideal based on single by 450 chip presents high rendering index 86.7, outstanding luminous efficiency 90 lm W −1 . To best knowledge, this highest value that achieved single‐component OICHs blue light chip. This work not only promotes prospect but also significantly broadens application special lighting fields, such as underwater illumination.

Language: Английский

Citations

6
Structural transformation in isomeric 0D copper(i) iodide hybrids and their utilization as water-stable luminophores for furaltadone detection DOI
Lin Yang,

Chunyang Shi,

Bohan Li

et al.

Inorganic Chemistry Frontiers, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Two hybrid copper halide isomers, 4-BrBTP(Cu 2 I 4 ) 0.5 (1-α and 1-β), are explored, showing switchable luminescence via isomeric transformation furaltadone sensitivity.

Language: Английский

Citations

0
Near-unity room-temperature phosphorescence quantum yield induced by halogen–halogen interaction in chiral hybrid copper(i) iodide clusters DOI
Y. Qin, Jianwu Wei, Jing Li

et al.

Inorganic Chemistry Frontiers, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

In this study, two pairs of 0D chiral copper iodide clusters were synthesized. The structural rigidity is increased by halogen modulation to obtain a near unity PLQY. applications in white LED and X-ray imaging are extremely promising.

Language: Английский

Citations

0
Organic Indium Halides with Near-Unity Photoluminescence Quantum Yields for Highly Efficient Luminescent Inks and White Light Emitting Diodes DOI
Qi Wang, Wei Jiang,

T Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 9, 2025

Zero-dimensional (0D) organic indium halides have been emerged as promising broadband light emitters with wide application prospects, but most of the present suffer from low photoluminescence quantum yield (PLQY), and a high-power excitation source is needed to obtain desirable performance. In this work, we elaborately select appropriate cations crystal structural engineering obtained series highly efficient 0D bromides. Under UV excitation, these display yellow emissions (550-600 nm) near-unity PLQYs, which represents one highest values in all previously reported halides. Benefiting successful nanoscale engineering, luminescent inks based on are facilely prepared by dispersing nanocrystals into various solvents. The ink can be utilized print anticounterfeiting patterns, displays photoreversible switching visible/invisible transformation under alternating irradiation visible light. Furthermore, white emitting diodes fabricated high color rendering index above 90 using down-conversion phosphors. This work not only promotes development also significantly broadens solid-state illumination anticounterfeiting, etc.

Language: Английский

Citations

0
Chiral Rare-Earth (Ce, Eu) Metal Halides with Bright Circularly Polarized Luminescence DOI
Congcong Chen, Jian Chen, Zhongwei Chen

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(46), P. 21801 - 21805

Published: Nov. 6, 2024

Chiral metal halide materials are emerging chiroptical that easy to synthesize and have a wide tunability. Rare-earth (RE) metals desirable components be incorporated in the hybrid regime; however, they typically difficult handle for solution-based chemistry. Here, we report two new examples of chiral RE halides with Ce(III) Eu(III) alkanolammonium cations (R/S-3-hydroxyquinuclidium). These compounds crystallize non-centrosymmetric space group R3, where their mirror-like symmetric circular dichroism (CD) circularly polarized luminescence (CPL) further witness nature. The superior emission properties, including high photoluminescence quantum yield Ce-based (84–90%) Eu-based (27–29%), led distinct sharp symmetrical CPL ultraviolet visible regions, dissymmetry factors (glum) ∼2 × 10–3 ∼4 10–3, respectively. This work has established expanded demonstrated potential spintronic applications.

Language: Английский

Citations

1
Rational Design of Single‐Component White‐Light Emissive Molecular Copper Clusters DOI Creative Commons

Alain Rocheteau,

Lanig Lemeur,

Marie Cordier

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 13(2)

Published: Nov. 21, 2024

Abstract The development of low‐cost and earth‐abundant phosphors for substituting expensive noble metals toxic lead materials is currently major importance sustainable solid‐state lighting technologies. Hybrid copper halide are receiving considerable attention due to their unique diverse structural photophysical properties combined low cost toxicity. This article reports the rational design iodide compounds developing single‐component white light emitters. By a ligand engineering strategy, energy layout molecular clusters can be adjusted variation in relative intensity two emission bands obtained, enabling emitted. Temperature dependence this dual‐emission feature also allows high contrast luminescence thermochromism. Thanks good solubility properties, studied have been successfully incorporated within organic polymer leading with processability suitable application development. Therefore, potential applicability these composite has demonstrated various fields as ratiometric thermometry, emitters phosphor‐converted white‐light emitting diodes, ink anticounterfeiting properties. study highlights power strategy develop multifunctional based on light‐emitting materials.

Language: Английский

Citations

0