Smart Semiconductor-Heterojunctions Mechanoluminescence for printable and wearable sports light sources DOI Creative Commons

Xu Li,

Chunfeng Wang,

Yuantian Zheng

et al.

Materials & Design, Journal Year: 2023, Volume and Issue: 225, P. 111589 - 111589

Published: Jan. 1, 2023

Mechanoluminescence (ML) materials, which directly convert mechanical energy into light emission, have emerged as an emerging class of light-emitting materials with various applications. Although significant progress has been made in the development new ML and devices, their practical application is limited by low intensity homogenously structured host structures. Thus, multiple-structured high reproducibility are needed, particularly for wearable printable sources brightness. In this study, Mn-doped ternary heterojunction CaZnOS-ZnS-SrZnOS, synthesised high-temperature solid-phase reactions, luminescence properties systematically tested. The result indicates that a higher over 60 times stronger than state-of-art SrZnOS: Mn2+, currently brightest sample we obtained. linearly depends on magnitude applied force. Based heterojunctions, repetitive self-driving zipper achieved first time through powder modification inlay; clothes composed our prepared zippers pulled bent when worn body to emit bright visible light. Additionally, Velcro can achieve emission developed; it provides idea flexible self-luminous devices future. Simultaneously, movement-driven stress luminous objects be printed surface commodities or packaging demonstrated. preparation self-driven, battery-free, electrode-free important trend, avoid interference circuit improve stability thus promising wide range applications smart wear, energy-saving displays, safety rescue, robotic skin, information security.

Language: Английский

Charge carrier trapping management in Bi3+ and lanthanides doped Li(Sc,Lu)GeO4 for x-ray imaging, anti-counterfeiting, and force recording DOI Open Access
Tianshuai Lyu, Pieter Dorenbos

Applied Physics Reviews, Journal Year: 2024, Volume and Issue: 11(1)

Published: Feb. 21, 2024

Discovering energy storage materials with rationally controlled trapping and de-trapping of electrons holes upon x-rays, UV-light, or mechanical force stimulation is challenging. Such enable promising applications in various fields, for instance multimode anti-counterfeiting, x-ray imaging, non-real-time recording. In this work, photoluminescence spectroscopy, the refined chemical shift model, thermoluminescence studies will be combined to establish vacuum referred binding (VRBE) diagrams LiSc1−xLuxGeO4 family compounds containing level locations Bi2+, Bi3+, lanthanides. The established VRBE are used develop Bi3+ lanthanides doped phosphors understand processes charge carriers physical excitation means. intensity irradiated LiSc0.25Lu0.75GeO4:0.001Bi3+,0.001Eu3+ about two times higher than that state-of-the-art phosphor BaFBr(I):Eu2+. Particularly, a induced carrier phenomenon appears Eu3+ co-doped LiSc1−xLuxGeO4. Proof-of-concept recording, imaging demonstrated. This work not only deepens our understanding capturing sources, but can also trigger scientists discover new by exploiting VRBEs bismuth lanthanide levels.

Language: Английский

Citations

22
Pushing Trap‐Controlled Persistent Luminescence Materials toward Multi‐Responsive Smart Platforms: Recent Advances, Mechanism, and Frontier Applications DOI
Jiaren Du, Xiaomeng Wang, Shan Sun

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(37)

Published: July 14, 2024

Abstract Smart stimuli‐responsive persistent luminescence materials, combining the various advantages and frontier applications prospects, have gained booming progress in recent years. The trap‐controlled property energy storage capability to respond external multi‐stimulations through diverse pathways make them attractive emerging multi‐responsive smart platforms. This review aims at advances materials for advanced multi‐stimuli‐responsive design principles, mechanisms, representative stimulations, i.e., thermo‐, photo‐, mechano‐, X‐rays responsiveness, are comprehensively summarized. Various hybrid systems containing highlighted. Specifically, temperature dependent trapping de‐trapping performance is discussed, from extreme‐low ultra‐high conditions. Emerging future perspectives briefly presented. It hoped that this would provide new insights guidelines rational manipulation of

Language: Английский

Citations

18
Continuous tuning of persistent luminescence wavelength by intermediate-phase engineering in inorganic crystals DOI Creative Commons
Xin Zhang, Hao Suo,

Yang Guo

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Aug. 9, 2024

Multicolor tuning of persistent luminescence has been extensively studied by deliberately integrating various luminescent units, known as activators or chromophores, into certain host compounds. However, it remains a formidable challenge to fine-tune the spectra either in organic materials, such small molecules, polymers, metal-organic complexes and carbon dots, doped inorganic crystals. Herein, we present strategy delicately control wavelength engineering sub-bandgap donor-acceptor states series single-phase Ca(Sr)ZnOS The emission peak can be quasi-linearly tuned across broad range (500-630 nm) function Sr/Ca ratio, achieving precision down ~5 nm. Theoretical calculations reveal that fine-tuning stems from constantly lowered donor levels accompanying modified band structure Sr alloying. Besides, our experimental results show these crystals exhibit high initial luminance 5.36 cd m

Language: Английский

Citations

18
Erbium‐Induced Boost in Self‐Trapped Exciton Emission of Double Perovskites for Highly Sensitive Multimodal and Multiplexed Optical Thermography DOI
Gaoqiang Li, Shanshan Cheng, Xu Chen

et al.

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

Published: April 16, 2024

Abstract Self‐trapped excitons (STEs) of lead‐free perovskites have aroused tremendous interest in remote optical thermometry due to strong exciton–phonon coupling and large Stokes shifts. Herein, a bright multimodal multiplexed thermometer is constructed with high sensitivity ( S r ) self‐calibrating ability based on Cs 2 NaInCl 6 :Er 3+ double perovskite, allowing for fast simplified reading via mobile devices. Intriguingly, Er doping not only shows the characteristic green emissions but also introduces nanoelectronic domains through new localized valance band maximum breaks symmetry In site, which facilitates generation more STEs. The temperature‐sensitive blue emission STEs temperature‐insensitive endow including time‐resolved ratiometric readout schemes 3.8% K −1 , where an upconversion primary serves as reference calibrate other modes. Meanwhile, designed thermometers show robust photostability, repeatability, structural stability long‐time working storage. addition, remarkable thermochromic phenomenon from enables quick color‐multiplexed thermography smartphone, utilized capture real‐time 2D thermal imaging microelectronic This work demonstrates great potential perovskite low‐cost portable thermometry.

Language: Английский

Citations

17
Self‐Charging Persistent Mechanoluminescence with Mechanics Storage and Visualization Activities DOI Creative Commons
Yongqing Bai,

Xiuping Guo,

Birong Tian

et al.

Advanced Science, Journal Year: 2022, Volume and Issue: 9(28)

Published: Aug. 17, 2022

Abstract Persistent mechanoluminescence (ML) with long lifetime is highly required to break the limits of transient emitting behavior under mechanics stimuli. However, existing materials persistent ML are completely trap‐controlled, and a pre‐irradiation required, which severely hinders practical applications. In this work, novel type ML, self‐charging created by compositing Sr 3 Al 2 O 5 Cl :Dy 3+ (SAOCD) powders into flexible polydimethylsiloxane (PDMS) matrix. With no need for any pre‐irradiation, as‐fabricated SAOCD/PDMS elastomer could exhibit intense stimuli directly, greatly facilitates its applications in lighting, displaying, imaging, visualization. By investigating matrix effects as well thermoluminescence, cathodoluminescence, triboelectricity properties, interfacial triboelectrification‐induced electron bombardment processes demonstrated be responsible self‐charged energy SAOCD Based on unique processes, further exhibits storage visualized reading activities, brings ideas approaches deal mechanics‐related problems fields mechanical engineering, bioengineering, artificial intelligence.

Language: Английский

Citations

62
Interfacial triboelectrification-modulated self-recoverable and thermally stable mechanoluminescence in mixed-anion compounds DOI
Yongqing Bai, Fu Wang, Liqiang Zhang

et al.

Nano Energy, Journal Year: 2022, Volume and Issue: 96, P. 107075 - 107075

Published: Feb. 21, 2022

Language: Английский

Citations

56
Design of Ratiometric Dual‐Emitting Mechanoluminescence: Lanthanide/Transition‐Metal Combination Strategy DOI
Su Zhou, Yao Cheng, Ju Xu

et al.

Laser & Photonics Review, Journal Year: 2022, Volume and Issue: 16(5)

Published: Feb. 4, 2022

Abstract Mechanoluminescence (ML) materials with the ability to convert mechanical stimulate into visible light signals have enabled visualized mechanics sensing. To this point, stress sensing based on ML color is preferred over that intensity in terms of both reliability and visual sensitivity. In work, a ratiometric dual‐emitting strategy realize stress‐sensitive variation, where Lanthanide/transition‐metal combination adopted build dual‐activator system proposed. The difference electronic configuration between Lanthanide transition‐metal ions leads significant discrepancy response corresponding luminescence kinetics instantaneous change local crystal field environment induced by stress, which plays key role strategy. This establishes new general path for design novel materials.

Language: Английский

Citations

45
NIR Mechanoluminescence from Cr3+ Activated Y3Al5O12 with Intense Zero Phonon line DOI
Zhichao Liu,

Xue Yu,

Qingpeng Peng

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(27)

Published: May 1, 2023

Abstract Mechanoluminescence (ML) materials with long‐wavelength emission bands are essential for future in vivo bioimaging, non‐destructive testing of solids, etc. The lack a defined mechanism, however, prevents the application near infrared ML above 650 nm several new fields. Here, addition Ga 3+ ions to Y 3 Al 5 O 12 : Cr manipulates matrix microstructure evolution, boosting near‐infrared (NIR) zero‐phonon line (ZPL) stress optical output ion at 688 nm. key factor changing crystal field intensity D q /B due is what causes luminescence amplification ZPL. fabricated by composite polydimethylsiloxane and 4 GaO (YAGG: ) may penetrate chicken feet epidermal tissue mm pork thanks strong NIR ZPL YAGG: phosphor. This discovery enhancing solid solution provides us technique optimizing materials, as well prospect biological applications.

Language: Английский

Citations

42
Temporal @ spatial anti-counterfeiting with Mn2+/Bi3+/Er3+ doped BaZnOS phosphors DOI

Longchao Guo,

Ting Wang, Qingyuan Wang

et al.

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 442, P. 136236 - 136236

Published: April 7, 2022

Language: Английский

Citations

41
Stress‐Triggered Mechanoluminescence in ZnO‐Based Heterojunction for Flexible and Stretchable Mechano‐Optics DOI
Leipeng Li, Chongyang Cai, Xiao-Huan Lv

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(32)

Published: April 26, 2023

Abstract Owing to the forthcoming global energy crisis, search for energy‐saving materials has intensified. Over past two decades, mechanically induced luminescent have received considerable attention as they can convert waste into useful components, instance, conversion from stress light. However, this material features many constraints that limit its widespread application. Herein, a strategy improve mechanoluminescence (ML) of ZnO by embedding it in ZnF 2 :Mn 2+ matrix is introduced. Upon dynamic excitation via an external stress, reddish‐yellow ML confirmed originate 4 T 1 (4G) → 6 A (6S) transition optically active Mn center. Moreover, sample with strongest contains appropriate amount (ZnF :ZnO = 7:3). By performing density functional theory calculations, possible ML‐enhancement mechanism elucidated, which indicates formation /ZnO:Mn heterojunction. Considering unique characteristics ML, promising applications are demonstrated various mechano‐optics scenarios, including flexible and stretchable optoelectronics, advanced self‐powered displays, e‐skins/e‐signatures, anti‐counterfeiting, without use light/electric‐incentive sources. The study significantly increases variety expected strengthen foundation future development smart controlled devices systems.

Language: Английский

Citations

40