Smart mechanoluminescent phosphors: A review of zinc sulfide‐based materials for advanced mechano‐optical applications

Deleted Journal, Journal Year: 2024, Volume and Issue: 2(3)

Published: Aug. 1, 2024

Abstract The quest for mechanoluminescence (ML) in zinc sulfide (ZnS) spans more than a century, initially sparked by observations of natural minerals. There has been resurgence research into ML materials recent decades, driven advances optoelectronic technologies and deeper understanding their luminescent properties under mechanical stress. ZnS, particular, garnered attention owing to its remarkable ability sustain luminescence after 100,000 stimulations, positioning it as standout candidate applications. In contrast conventional photoluminescent electroluminescent light sources, ZnS composite elastomers have emerged flexible, stretchable self‐powered sources with considerable practical implications. This review introduces the development history, mechanisms, prototype devices, ZnS‐based material preparation methods, diverse applications spanning environmental mechanical‐to‐optical energy conversion, E‐signatures, anti‐counterfeiting, wearable information sensing advanced battery‐free displays, biomedical imaging, optical fiber sensors human–computer interactions, among others. By integrating insights from ML‐optics, mechanics, flexible optoelectronics, summarizing pertinent perspectives on current scientific challenges, application technology hurdles, potential solutions emerging frontiers, this aims furnish fundamental guidance conceptual frameworks design, advancement, cutting‐edge novel mechanoluminescent materials.

Language: Английский

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Trap Assisted Dynamic Mechanoluminescence Toward Self‐Referencing and Visualized Strain Sensing

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

Published: Nov. 27, 2024

Abstract Strain sensors utilizing mechanoluminescent (ML) materials have garnered significant attention and application due to their advantages, such as self‐powering, non‐contact operation, real‐time response. However, ML‐based strain sensing techniques typically rely on the establishing of a mathematical relationship between ML intensity mechanical parameters. The absolute is vulnerable environmental factors, which can result in measurement errors. Herein, an color‐resolved visualized dynamic self‐referencing investigated Ca 9 Al(PO 4 ) 7 : Tb 3+ , Mn 2+ . By analyzing performance under various stimulations adjustable parameters, ratio /Mn aimed bed established. This will enable development technology. Through comparison luminescence characteristics continuous stimulation (stretching) X‐ray irradiation, it discovered that ratiometric primarily driven by filling release carriers form traps, compensates for Leveraging (from green red) characteristics, scenario monitoring human joint movement developed. approach offers new insights into use human‐machine interaction.

Language: Английский

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Local electric field-induced mechanoluminescence caused by disordered occupation of Mg2+ and Ga3+: Tunable luminescence performance and its applications

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159500 - 159500

Published: Jan. 11, 2025

Language: Английский

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Shear Stiffening‐Based Mechanoluminescent Device for Impact‐Thermal Coupling Protection and Impact Visualization

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

Published: Sept. 12, 2024

Abstract Intelligent impact‐protection wearable devices often require intricate circuitry to operate, which hinders the timely display of impact‐related injuries. Consequently, it is imperative develop intelligent protective materials that are self‐sufficient and capable visualization. In this work, impact protection material shear‐stiffening gel (SSG) combined with mechanoluminescent (ML) ZnS:Cu/PDMS@SiO 2 create ML‐SSG. This embodies various features, including protection, force visualization, flame resistance, long‐distance passive control, making ideal for devices. light significant shear stiffening effect SSG, ML‐SSG effectively dissipates up 80% energy exhibits excellent resistance. Concurrently, also visualizing injuries, displaying warning in real‐time via mechanoluminescence, assessing based on intensity mechanoluminescence. The incorporation SiO ZnS:Cu has resulted remarkable flame‐retardant property. innovative significantly improves performance complex environments. addition, realizes human–computer interaction through neural network mechanoluminescence characteristics. research expands potential applications multifunctional complicated environments, thereby promoting development

Language: Английский

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A novel structure luminous flexible fiber was prepared via aerosol jet printing

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 27, 2025

Utilizing aerosol jet printing (AJP), this study achieves a breakthrough in fabricating luminescent fibers with superior optical performance and flexibility. The Y2O3:Eu3+ coated high silica glass demonstrate luminous efficiency twice that of traditional methods, retaining 80% after 250 bending cycles 90% sweat immersion. This AJP technique not only elevates the potential smart fabrics but also represents significant innovation lighting technology, providing new ideas for advanced functional fiber fabrication.

Language: Английский

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Exploring Mechanoluminescence of Zinc Alkaline Earth Metal Oxysulfides from Fundamentals to Advanced Applications

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

Published: Oct. 11, 2024

Abstract Mechanoluminescent (ML) materials convert mechanical stimuli into light emission, enabling applications in stress distribution visualization, structural health monitoring, biomechanical imaging, and sono‐optogenetics. Achieving efficient full‐spectrum ML represents a long‐standing challenge. Zinc alkaline earth metal oxysulfides, namely CaZnOS, SrZnOS, BaZnOS, SrZn 2 S O, have emerged as prominent contenders this field due to their exceptional properties. These feature low‐stress thresholds for emission activation, high intensity without the need irradiation charging, tunable spectra ranging from visible near‐infrared, thus advancing research broadening application possibilities. Here, comprehensive review of significant advancements made on zinc oxysulfides over past decade, encompassing synthesis, characterization, mechanisms, promising is presented. Special attention focused addressing conflicting reports generation conditions, recent progress accurately characterizing performance, understanding mechanical‐to‐optical conversion processes. Future directions fundamental challenges translating these practical are also discussed.

Language: Английский

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Dynamic and Static Stress Sensing Based on Mechanical Quenching Phenomenon From CaZnOS:Cu⁺

Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 2, 2025

Abstract Mechanical quenching (MQ) represents a distinctive mechano‐optical response, in which the afterglow intensity is quenched under applied mechanical stress. Compared with mechanoluminescent (ML) materials, research on physical mechanism and sensing application of MQ materials still insufficient. Moreover, existing typically respond only to dynamic stress, while ML are unable exhibit luminescence static restricting their utility stress‐sensing applications. In this work, characteristics CaZnOS:Cu + systematically studied, displays linear response Furthermore, material shows sensitive micro‐strain stretching tests. Therefore, novel switch device introduced combined LiTaO 3 :Tb 3+ . By comparing alteration during stretching, different stages stress digitally encoded, achieving both effectively differentiating information output. These findings provide new approach for multi‐mode by utilizing pave significant avenue integration field sensing.

Language: Английский

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Daylight-Activated Recoverable Mechano-luminescence Material SrGa12O₁₉: Tb3+ for Enhanced Speed Detection Applications

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Tuning Mechanoluminescence From Red to Near‐Infrared Light in CaZnOS:Mn²⁺

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

Published: March 10, 2025

Abstract Mechanoluminescence (ML) materials can convert mechanical energy into photoelectrons and have significant potential for applications in intelligent sensing, self‐driven luminescent displays, human‐computer interaction. Among the numerous ML systems, Mn 2+ ‐doped wurtzite‐based phosphors become a prominent family. However, their emissions are typically confined to visible light, which substantially limits utility fields such as biomechanics bioimaging. Here, it is demonstrated that photoluminescence (PL) emission of CaZnOS:Mn be tuned from red near‐infrared light (peaked at 770 nm) by regulating ion concentration. The electronic paramagnetic resonance, PL lifetime, various spectra reveal originates enhanced magnetic interaction pairs due intrinsic defects. heavy CaZnOS elastomer with exhibits distinct advantages over low only field biomechanical imaging. This work achieves singly doped ions first time, providing perspective broadening ions‐doped phosphors.

Language: Английский

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Multicolor Rare‐Earth Film with Ultra‐Long Afterglow for Diverse Energy‐Saving Applications

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

Published: March 20, 2025

Abstract Rare‐earth afterglow materials, with their unique light‐storage properties, show great promise for diverse applications. However, broader applicability is constrained by challenges such as poor solvent compatibility, limited luminescent efficiency, and monochromatic emissions. In this study, these limitations are addressed blending ZnS various rare‐earth phosphors including (Sr 0.75 Ca 0.25 )S:Eu 2+ ; SrAl 2 O 4 :Eu , Dy 3+ Sr MgSi 7 to modulate deep trap mechanisms significantly enhance both the light capture capabilities. Using electrospinning, a large‐area (0.4 m × 3 m) film successfully fabricated tunable colors an extended duration exceeding 30 h. This demonstrates thermoluminescence, enabling potential integration into fire‐rescue protective clothing enhanced emergency visibility. greenhouse settings, it effectively supports chlorophyll synthesis optimizes conditions plant growth over 24‐h cycle. For tunnel garage applications, captures stores from vehicle headlights at distances of up 70 meters. The scalability cost‐effectiveness underscore its considerable real‐world applications across multiple fields, marking significant advancement in sustainable illumination technology.

Language: Английский

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