ADVANCED MATERIALS
·
2024
·
IF 27.4
Hang Yang,Yi Wei,Haonan Ju,Xinru Huang,Jun Li,Wei Wang,Dengfeng Peng,Dong Tu,Guogang Li
Elastico-mechanoluminescence technology has shown significant application prospects in stress sensing, artificial skin, remote interaction, and other research areas. Its progress mainly lies in realizing stress visualization and 2D or even 3D stress-sensing effects using a passive sensing mode. However, the widespread promotion of mechanoluminescence (ML) technology is hindered by issues such as high stress or strain thresholds and a single sensing mode based on luminous intensity. In this study, a highly efficient green-emitting ML with dual-mode stress-sensing characteristics driven by microscale strain is developed using LiTaO 3 :Tb 3+ . In addition to single-mode sensing based on the luminous intensity, the self-defined parameter ( Q ) is also introduced as a dual-mode factor for sensing the stress velocity. Impressively, the fabricated LiTaO 3 :Tb 3+ film is capable of generating discernible ML signals even when supplied with strains as low as 500 µst. This is the current minimum strain value that can drive green-emitting ML. This study offers an ideal photonic platform for exploring the potential applications of rare-earth-doped elastico-ML materials in remote interaction devices, high-precision stress sensors, and single-molecule biological imaging.
研究领域:
材料科学
·
光电子学
·
传感器
·
生物医学工程
✓ 已验证
DOI
高影响因子
Advanced Optical Materials
·
2023
·Vol. 11
·期 22
·2300911
·
IF 9
Binli Xiao,Puxian Xiong,Sheng Wu,Dongliang Jiang,Kang Chen,Yao Xiao,Peishan Shao,Yinzhen Wang
Mechanical luminescence (ML) is the conversion of mechanical energy into light energy when a material is subjected to a force. It is challenging to develop ML materials with tunable luminescent properties by single ion doping, which have broad application prospects in the fields of stress sensing and dynamic signature anticounterfeiting. In this study, a Pr 3+ doped Sr 2 Ga 2 GeO 7 tunable ML material is reported. Due to the traps resulting from unequal substitution of Pr 3+ –Sr 2+ in [SrO 6 ] heptahedra, the deep/shallow traps redistribution occurs towards a multicolor ML from red to green. In addition, even after continuous friction sliding force (15 N), the ML intensities can be recovered after ultraviolet pre-irradiation, indicating that Sr 2 Ga 2 GeO 7 : Pr 3+ has excellent ML emission stability. Based on thermoluminescence analysis, potential PersL and ML mechanisms are further elaborated by a lattice engineering (trap regulation) strategy. In all, the development of single-ion doped multicolor ML materials may have crucial research value and show a variety of potential applications in the fields of anticounterfeiting and information encryption.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2019
·Vol. 7
·期 26
·8070-8078
·
IF 6.641
Yu Zhou,Yun-Ling Yang,Yu-Ting Fan,Woochul Yang,Wei-Bin Zhang,Jian-Feng Hu,Zhi-Jun Zhang,Jing-Tai Zhao
A series of novel red emitting Mn2+-activated SrZnSO phosphors were successfully synthesized by solid-state reaction at high temperature. The photoluminescence (PL) and mechanoluminescence (ML) properties of these Mn2+-activated SrZnSO phosphors with different Mn2+ concentrations were investigated. With increasing the concentration of Mn2+ from x = 0 to 0.04, the unit cell volume increased from 153.82 to 154.19 Å3 while the optical band gap decreased from 3.74 to 3.43 eV. The site occupation of Mn2+ in the host lattice was demonstrated by Rietveld refinement, the electron paramagnetic resonance (EPR) spectrum, and the spectroscopic properties. A broad band emission peak at 603 nm of SrZn1−xMnxSO (0.001 ≤ x ≤ 0.04) with an excitation wavelength of 318 nm was attributed to electronic transitions of Mn2+ from the 4T1(4G) level to the 6A1(6S) level. The lifetime of SrZn1−xMnxSO (0.001 ≤ x ≤ 0.04) decreased monotonously from 2.97 to 0.82 ms with increasing Mn2+ concentration. In particular, intense emission of red light from SrZn1−xMnxSO (0.001 ≤ x ≤ 0.04) under compressive load could be observed even with the naked eye, indicating that SrZn1−xMnxSO could be used for stress sensors or stress imaging. There was a linear correlation between the ML intensity and external load in SrZn1−xMnxSO, and the ML intensity could be recovered under UV light irradiation. Considering its advantages of non-destruction, reproducibility, and high ML intensity, SrZn1−xMnxSO might be useful for non-destructive detection of stress.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
ACS Biomaterials Science & Engineering
·
2022
·
IF 5.395
Saihua Tian,Mengmeng Wang,Xing Wang,Liangyu Wang,Dongzhi Yang,Jun Nie,Guiping Ma
Flexible electronic devices with biological therapeutic and sensing properties are one of the current research directions. Here, a multifunctional hydrogel for stress sensing and wound healing was prepared by a simple one-pot method and a solution replacement method. Among them, zwitterionic polymers promote wound healing by promoting the polarization of M2 macrophages, collagen deposition, and blood vessel formation. Glycerin can significantly improve the resilience and frost resistance of the hydrogel, ensuring that a sensor made using the hydrogel can work normally in a cold environment. In addition, zwitterionic polymers are highly biocompatible, providing excellent antibacterial adhesion to aid the wound healing process, and good electrical conductivity enhances sensing sensitivity and stability. Based on these properties, multifunctional hydrogels could detect human vital activities while promoting wound healing, providing new ideas for the fields of diagnosis and wound dressing.
研究领域:
生物医学工程
·
材料科学
·
组织工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Laser & Photonics Reviews
·
2025
·
IF 10
Xinru Huang,Hang Yang,Yi Wei,Haonan Ju,Wei Wang,Dong Tu,Guogang Li
Mechanical quenching (MQ) represents a distinctive mechano-optical response, in which the afterglow intensity is quenched under the applied mechanical stress. Compared with mechanoluminescent (ML) materials, the research on physical mechanism and sensing application of MQ materials is still insufficient. Moreover, existing mechano-optical materials typically respond only to dynamic stress, while ML materials are unable to exhibit luminescence under static stress, restricting their utility in stress-sensing applications. In this work, the MQ characteristics of CaZnOS:Cu + are systematically studied, which displays a linear mechano-optical response to dynamic and static stress. Furthermore, this material shows a sensitive response to micro-strain in stretching tests. Therefore, a novel mechanical switch device is introduced combined with CaZnOS:Cu + and a ML material LiTaO 3 :Tb 3+ . By comparing the alteration in luminescence intensity during stretching, different stages of stress are digitally encoded, achieving both dynamic and static stress sensing and effectively differentiating the information output. These findings provide a new approach for multi-mode dynamic and static stress sensing by utilizing mechano-optical materials and pave a significant avenue for the information integration of mechano-optical materials in the field of stress sensing.
研究领域:
材料科学
·
光学
·
力学
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2018
·
IF 2.873
Kaimin Huang,Guowu Tang,Qianhang Luo,Guoquan Qian,Li Yang,Fangqiang Yuan,Zhenguo Shi,Qi Qian,Zhongmin Yang
Se 0.5 Te 0.5 semiconductor core optical fibers with phosphate glass cladding were fabricated by using a reactive molten core approach. The core was found to be amorphous with some oxygen diffusing in from the cladding glass. Crystalline Se 0.5 Te 0.5 (c-Se 0.5 Te 0.5 ) semiconductor core fibers were obtained by a post-drawing annealing process. Significant disparities in conductivity under stress and without stress were observed in c-Se 0.5 Te 0.5 semiconductor core fibers. To the best of our knowledge, this is the first time that stress sensing can be realized in c-Se 0.5 Te 0.5 semiconductor core optical fibers. This is in contrast to all previous work on stress sensing using fibers, which require the use of optical probing signals. In addition, it is found that more than 60 times change in conductivity between dark and illuminated states in c-Se 0.5 Te 0.5 semiconductor core fibers. These results demonstrate that c-Se 0.5 Te 0.5 semiconductor core optical fibers have promising applications in stress sensor, photodetector, and optical switch.
研究领域:
材料科学
·
光学工程
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
LUMINESCENCE
·
2023
·Vol. 38
·期 8
·1465-1476
·
IF 2.9
Sheng Wu,Puxian Xiong,Kexin Qin,Yao Xiao,Binli Xiao,Kang Chen,Dongliang Jiang,Yinzhen Wang
Mechanoluminescence (ML) materials have found potential applications in information storage, anti-counterfeiting, and stress sensing. Conventional stress sensing based on absolute ML intensity is prone to significant mistakes owing to the unpredictability of measurement surroundings. However, implementing a ratiometric ML sensing technique may considerably ameliorate this issue. In this study, a single activator-doped gallate material (LiGa 5 O 8 :Pr 3+ ) is proposed to determine the relationship between the ML intensity and the change in local positional symmetry that occurs when the material is subjected to stress. The sensing reliability of the ML intensity ratio under different factors (Force; Content; Thickness and Materials) is systematically analyzed, where the factor that has the greatest effect on the proportional ML is the concentration, with the ML intensity asymmetry ratio decreasing from 1.868 to 1.300 varying concentration at constant stress. The colour-resolved visualization of stress sensing is further realized, which opens a new path for a ratiometric ML-based strategy to improve the reliability of stress sensing.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
Advanced Composites and Hybrid Materials
·
2025
·Vol. 8
·期 3
·1-17
·
IF 21.8
Cui Dapeng,Sun Yunlong,Li Tuo,Hu Zhiwei,Zhao Yi,Wang Xuanye,Chen Shengxi,Toktarbay Zhexenbek,Wei Huige
Herein, an ionic hydrogel using sodium alginate (SA) toughened polyacrylamide (PAM)/gelatin semi-interpenetrating network with both high strength and high ductility for stress sensing is constructed. In the designed PGS-Ca 2+ /LiCl (short for PAM/Gelatin/SA-Ca 2+ /LiCl) hydrogel network, PAM acts as a flexible hydrophilic skeleton, and gelatin acts as a flexible secondary network. The addition of SA inhibits the phase separation of gelatin and improves the transparency of hydrogel. Meanwhile, the macromolecule SA complexes with metal ions of Ca 2+ , leading to the formation of a distinct complex structure which remarkably enhances the mechanical robustness of the hydrogel. Moreover, the incorporation of inorganic salt LiCl confers high electrical conductivity, concomitantly reducing the freezing point, mitigating water loss, and enhancing the environmental stability of the hydrogel, thereby endowing the hydrogel with improved adaptability to diverse operating conditions. PGS-Ca 2+ /LiCl has excellent mechanical properties and ultra-high ductility (with a tensile strength up to 110 kPa at break, a strain up to 1500% at break), as well as high stress sensing properties (with an excellent GF of 1.07, a pressure sensitivity of 0.0107). In addition, a handwriting sensor, a Morse code sensor, and an 8 × 8 sensor have been designed to recognize different signals and show the movement of objects and different pressures, which shows that PGS-Ca 2+ /LiCl ionic hydrogels have great potential in electronic skin, wearable and flexible devices.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Yi-Li Peng,Qiang-Qiang Zhu,Hao-Liang Cheng,Shuang-Qiang Fang,Yue Zhai,Le Wang
Mechanoluminescent (ML) materials hold significant potential for applications in visual stress and temperature sensing. However, most studied ML materials are largely limited to trap-controlled types, which necessitate prior optical excitation for activation and require continuous optical stimulation to maintain luminescent intensity. This dependency significantly restricts their performance in practical applications. In this study, we developed self-recoverable CGO:Eu³⁺ red-emitting ML powders and combined them with green-emitting ZnS:Cu ML powders in polydimethylsiloxane (PDMS) to facilitate visualized stress and temperature sensing. The ML intensity of CGO:Eu³⁺ and ZnS:Cu demonstrates distinct trends at varying strains; thus, the CGO:Eu³⁺-ZnS:Cu composite elastomer with a CGO:Eu³⁺ to ZnS:Cu ratio (CtZ ratio) of 4:1 exhibits the most significant ML color change in response to strain variations. Additionally, the notable difference in thermal quenching performance between CGO:Eu³⁺ and ZnS:Cu powders enables the composite elastomer with a CtZ ratio of 2:1 to differentiate temperature based on changes in ML color, achieving a maximum relative sensitivity ( S r) of 2.2 % K⁻¹ at 200 °C. The composite elastomers produced exhibited ML color changes that are easily perceptible to the human eye in response to varying stress and temperature conditions, thereby making them suitable for applications in intelligent gesture recognition and temperature detection.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Electronic Materials
·
2023
·
IF 4.7
Tingting Yu,Yebo Tao,Yali Wu,Dongguang Zhang,Jiayi Yang,Xingjun Liu
Three-dimensional graphene foam (GF)-based flexible piezoresistive sensors have the advantages of high conductivity, large deformable range and light weight, which has been utilized in human health measurement, electronic skin, and wearable devices. However, the encapsulation and electrode connections of such sensors reduce breathability, resulting in discomfort and even skin irritation. In this study, a self-encapsulated breathable GF (SEB–rGO–MF) and an SEB–rGO–MF-based piezoresistive sensor (SEB–rGO–MF–PS) are proposed. The SEB–rGO–MF–PS consists of a SEB–rGO–MF and two electrodes, ensuring encapsulation and electrical connection without compromising breathability and stability. We performed material characterization and breathability tests of the SEB–rGO–MF and investigated the sensing mechanism of the SEB–rGO–MF–PS. The SEB–rGO–MF–PS exhibits a sensitivity of 0.108 Pa–1, a measurement range of 0.013–15 kPa, rapid response/recovery times (83 and 166 ms), and excellent stability (2000 cycles at 15 kPa). In addition, this study demonstrates the application of the SEB–rGO–MF–PS for human motion monitoring.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2023
·Vol. 11
·期 5
·1747-1753
·
IF 6.4
Xiaowei Zheng,Yao Cheng,Yan Gao,Tao Hu,Ju Xu,Hang Lin,Yuansheng Wang
Dual-response mechanoluminescence (ML) enables light emission upon both the application and withdrawal of mechanical stress, which can provide novel opportunities for stress-sensing. Herein, we present the ML performance of doped ZnGa2O4–PDMS composites with a focus on the dual-response ML behavior upon the dynamic stretching–releasing cycle. Specifically, it was found that the dual-response ML behavior of ZnGa2O4 is doping dependent, which was further proved to be related to doping induced trap distribution. Finally, ZnGa2O4:Mn/PDMS with dual-response ML was used as an electronic skin to demonstrate its unique potential for stress-sensing applications.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 46
·2304917
·
IF 19
Changjian Chen,Zhu Lin,Honghui Huang,Xin Pan,Tian-Liang Zhou,Hongde Luo,Libo Jin,Dengfeng Peng,Jian Xu,Yixi Zhuang,Rong-Jun Xie
Converting mechanical energy into photon emission provides a promising route for intelligent sensing, self-powered lighting, and distributed energy harvesting, which is of great significance for finding a feasible solution to the current sensing technical bottleneck and energy crisis. As the basis for understanding the conversion mechanism and realizing high-frequency mechanical energy utilization, elucidating the dynamic process of intensity variation in the mechano-to-photon conversion remains a great challenge. Herein, a time-domain characterization scheme that enables to unravel the intrinsic decay of mechanoluminescence (ML) with lifetimes from milliseconds down to tens of microseconds is constructed. It is demonstrated that ML decay characterization is an important tool to reveal the dynamics of charge migration in ML materials. The ML decay in a typical self-reproducible ML material ZnS:Mn 2+ shows temperature dependence and stress fluctuation resistance, which opens up a new reliable approach for self-powered and remote temperature sensing. Finally, benefiting from the shortest ML lifetime recorded to date, an ultrafast-response stress sensor that enables to detect individual pulses of ultrasonic waves with ML sensing technology is developed.
研究领域:
材料科学
·
光学工程
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）