Recent Advances and Opportunities of Eco‐Friendly Ternary Copper Halides: A New Superstar in Optoelectronic Applications

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(44)

Published: Feb. 28, 2023

Abstract Recently, the newly‐emerging lead‐free metal‐halide materials with less toxicity and superior optoelectronic properties have received wide attention as safer potentially more robust alternatives to lead‐based perovskite counterparts. Among them, ternary copper halides (TCHs) become a vital group due their unique features, including abundant structural diversity, ease of synthesis, unprecedented properties, high abundance, low cost. Although recent efforts in this field made certain progresses, some scientific technological issues still remain unresolved. Herein, comprehensive up‐to‐date overview progress on fundamental characteristics TCH versatile applications is presented, which contains topics such as: i) crystal electronic structure features synthesis strategies; ii) mechanisms self‐trapped excitons, luminescence regulation, environmental stability; iii) burgeoning devices phosphor‐converted white light‐emitting diodes (WLEDs), electroluminescent LEDs, anti‐counterfeiting, X‐ray scintillators, photodetectors, sensors, memristors. Finally, current challenges together future perspectives development are also critically described, considered be critical for accelerating commercialization these rapidly evolving technologies.

Language: Английский

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Copper Iodide Inks for High-Resolution X-ray Imaging Screens

ACS Energy Letters, Journal Year: 2023, Volume and Issue: 8(3), P. 1362 - 1370

Published: Feb. 10, 2023

Copper-based halide scintillators have attracted considerable interest because of their high light yields, low detection limits, toxicity, and moderate fabrication conditions. Here, we synthesized two Cu(I) iodide inks, comprising zero-dimensional Cu4I6(L1)2 nanoparticles (L1 = 1-propyl-1,4-diazabicyclo[2.2.2]octan-1-ium) one-dimensional Cu4I6(L2)2 nanorods (L2 4-dimethylamino-1-ethylpyridinium) for X-ray imaging application. The exhibited broadband green yellow emission with an ultrahigh photoluminescence quantum yield 95.3% 92.2%, respectively. Consequently, the ink-based screens limits 96.4 102.1 nGy s–1, respectively, which are approximately 55 times lower than dose required standard medical diagnosis (5.5 μGy s–1). Importantly, both scintillation extraordinary resolutions exceeding 30 lp mm–1, more double those conventional CsI:Tl Ga2O2S:Tb scintillators. This study provides a new avenue exploring high-resolution on basis Cu-based ink radiography nondestructive detection.

Language: Английский

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2D Perovskite Mn²⁺‐Doped Cs₂CdBr₂Cl₂ Scintillator for Low‐Dose High‐Resolution X‐ray Imaging

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(26)

Published: March 27, 2023

High-performance X-ray scintillators with low detection limits and high light yield are of great importance a challenge for low-dose imaging in medical diagnosis industrial detection. In this work, the synthesis new 2D perovskite, Cs2 CdBr2 Cl2 , via hydrothermal reaction is reported. By doping Mn2+ into yellow emission located at 593 nm obtained, photoluminescence quantum (PLQY) :5%Mn2+ perovskite reaches highest value 98.52%. The near-unity PLQY negligible self-absorption enable excellent scintillation performance 64 950 photons MeV-1 limit 17.82 nGyair s-1 . Moreover, combining poly(dimethylsiloxane) to fabricate flexible scintillator screen achieves resolution 12.3 line pairs (lp) mm-1 results suggest that promising candidate high-resolution imaging. study presents approach designing high-performance through metal-ion doping.

Language: Английский

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Reversible Triple-Mode Photo- and Radioluminescence and Nonlinear Optical Switching in Highly Efficient 0D Hybrid Cuprous Halides

Chemistry of Materials, Journal Year: 2023, Volume and Issue: 35(17), P. 6598 - 6611

Published: Aug. 17, 2023

Multifunctional stimuli-responsive luminescent and optical switching is extremely crucial for wide advanced photonic applications, but it remains a challenging objective halide perovskites. Herein, by performing single-crystal to (SC–SC) transformation as dynamic molecular strategy, we realized reversible triple-mode photoluminescence, radioluminescence (PL RL), nonlinear (NLO) in pair of zero-dimensional (0D) hybrid cuprous halides [ETPP]2Cu4Br6 [ETPP]CuBr2. Specifically, [ETPP]CuBr2 display highly efficient yellow green light emissions under UV excitation with the highest quantum yield up near unity. Simultaneously, identical can also be activated using X-ray RL 57,974 photons MeV–1, surpassing most previously reported halides. Most remarkably, SC–SC between them an ethanol impregnation-heating process, which provides PL/RL transitions two light-emitting states. Additionally, this process accompanied transition centrosymmetric NLO-inactive noncentrosymmetric NLO-active through second harmonic generation (SHG) "silent-active" switching. To best our knowledge, first PL, RL, SHG perovskite chemistry, realize applications data storage, information security, logic gates, etc.

Language: Английский

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Advanced Organic–Inorganic Hybrid Materials for Optoelectronic Applications

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

Published: Sept. 9, 2024

Abstract Research on organic–inorganic hybrid materials (OIHMs) has experienced explosive growth in the past decades. The diversity of organic components allows for introduction various spatial scales, functional groups, and polarities, while inorganic provide higher hardness, heat resistance, stability, their flexible combination facilitates formation diverse structures. Furthermore, simple cost‐effective synthesis methods, such as room temperature solution processes mechanochemical techniques, enable precise control over materials' properties at different thus achieving adjustable structure–performance relationships. This review will discuss recent research progress OIHMs within field optoelectronics related optoelectronic device applications. According to dimension nature interface, this divides into four structural categories. ongoing revealed applications fields solar cells, light‐emitting devices, detectors, memristors. As an outlook, potential perovskite 0D metal halide materials, which are currently most studied, enhancing performance stability is discussed.

Language: Английский

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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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Unlocking the Potential of Organic‐Inorganic Hybrid Manganese Halides for Advanced Optoelectronic Applications

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

Published: Aug. 5, 2024

Organic-inorganic hybrid manganese(II) halides (OIMnHs) have garnered tremendous interest across a wide array of research fields owing to their outstanding optical properties, abundant structural diversity, low-cost solution processibility, and low toxicity, which make them extremely suitable for use as new class luminescent materials various optoelectronic applications. Over the past years, plethora OIMnHs with different dimensionalities multifunctionalities such efficient photoluminescence (PL), radioluminescence, circularly polarized luminescence, mechanoluminescence been newly created by judicious screening organic cations inorganic Mn(II) polyhedra. Specifically, through precise molecular engineering, series near-unity PL quantum yields, high anti-thermal quenching excellent stability in harsh conditions devised explored applications light-emitting diodes (LEDs), X-ray scintillators, multimodal anti-counterfeiting, fluorescent sensing. In this review, latest advancements development are summarized, covers from fundamental physicochemical properties advanced applications, an emphasis on functionality design especially LEDs detection imaging. Current challenges future efforts unlock potentials these promising also envisioned.

Language: Английский

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Large-Area Transparent Antimony-Based Perovskite Glass for High-Resolution X-ray Imaging

ACS Nano, Journal Year: 2024, Volume and Issue: 18(26), P. 16715 - 16725

Published: June 14, 2024

Nonlead low-dimensional halide perovskites attract considerable attention as X-ray scintillators. However, most scintillation screens exhibit pronounced light scattering, which detrimentally reduces the quality of imaging. Herein, we employed a simple and straightforward solvent-free melt-quenching method to fabricate large-area zero-dimension (0D) antimony-based perovskite transparent medium, namely (C

Language: Английский

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Pseudo‐2D Layered Organic‐Inorganic Manganese Bromide with a Near‐Unity Photoluminescence Quantum Yield for White Light‐Emitting Diode and X‐Ray Scintillator

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(45)

Published: Sept. 25, 2023

Abstract Eco‐friendly lead‐free organic–inorganic manganese halides (OIMHs) have attracted considerable attention in various optoelectronic applications because of their superior optical properties and flexible solution processibility. Herein, we report a novel pseudo‐2D layered OIMH (MTP) 2 MnBr 4 (MTP: methyltriphenylphosphonium), which exhibits intense green emission under UV/blue or X‐ray excitation, with near‐unity photoluminescence quantum yield, high resistance to thermal quenching (I 150 °C =84.1 %) good photochemical stability. These features enable as an efficient phosphor for blue‐converted white light‐emitting diodes, demonstrating commercial‐level luminous efficiency 101 lm W −1 wide color gamut 116 % NTSC. Moreover, these crystals showcase outstanding scintillation properties, delivering light yield 67000 photon MeV , detection limit 82.4 nGy s competitive spatial resolution 6.2 lp mm imaging. This work presents new avenue the exploration eco‐friendly luminescent OIMHs towards multifunctional applications.

Language: Английский

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High-Efficiency Narrow-Band Green-Emitting Manganese(II) Halide for Multifunctional Applications

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(40), P. 47238 - 47249

Published: Sept. 28, 2023

Zero-dimensional (0D) Mn2+-based metal halides used as luminescent materials and scintillators have become a research hotspot in the field of photoelectric devices due to their unique composition, structure, fluorescence properties. It is great value explore new achieve multifunctional applications. Herein, novel 0D halide single crystal (BPTP)2MnBr4 synthesized by simple solvent–antisolvent recrystallization method. Under excitation at 468 nm, shows pronounced narrow-band green luminescence centered 515 nm derived from d–d transition Mn2+ ion. This emission has relatively narrow full width half maximum 43 high photoluminescence quantum yield (PLQY) 82%. In addition, exhibits good thermal stability 393 K with retention 79% initial intensity 298 K. Benefiting its strong blue light excitation, PLQY, stability, we manufacture an ideal white light-emitting diode (LED) device using 460 LED chip, green-emitting (BPTP)2MnBr4, commercial K2SiF6:Mn4+ red phosphor. 20 mA drive current, luminous efficiency 112 lm/W wide color gamut 110.8%, according National Television System Committee standard. crystals show X-ray absorption. Based on Lu3Al5O12:Ce3+ scintillator, calculated reaches up about 136,000 photons/MeV detection limit 0.282 μGyair s–1. Additionally, melt quenching approach construct clear glass scintillation screen, realizing spatial resolution 10.1 lp/mm. The proper performances phosphor-converted scintillator addition eco-friendly, low-cost solution processability make potential for

Language: Английский

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