Novel Mechano-Luminescent Sensors Based on Piezoelectric/Electroluminescent Composites

Yao, Jia; Tian, Xiangling; Wu, Zheng; Tian, Xiaojuan; Zhou, Jiayi; Fang, Yunzhang; Zhu, Chenchen

doi:10.3390/s110403962

Cited by 20 publications

(5 citation statements)

References 24 publications

(23 reference statements)

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“…Several methods have been developed to grow ML thin film coatings directly on the surface of a target object, including physical vapour deposition of ion-plating, and radio-frequency magnetron sputtering techniques [15,[17][18][19]105,152,[161][162][163][164][165][166][167][168][169][170][171]. ML thin films offer advantages over powder/polymer composite coatings to image stress distributions in target structures, including thinner films (less than 10 μm), good thermal stability, and a preferred orientation of crystallinity -these features may help to overcome some of the optical and mechanical transmission problems discussed above for composite films (Section 2.3.1).…”

Section: Thin Filmsmentioning

confidence: 99%

Trap-controlled mechanoluminescent materials

Zhang

Wang

Marriott

et al. 2019

Progress in Materials Science

257

196

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Mechanoluminescence (ML) is generated during exposures of certain materials to mechanical stimuli. Many solid materials produce ML during their fracturing, however, the irreversibility of fracto-induced ML limits the practical applications of these materials. In 1999, Chao-Nan Xu discovered an intense and reproducible ML from trap-controlled materials, including ZnS:Mn 2+ and SrAl 2 O 4 :Eu 2+ , and introduced the principles and applications of hybrid inorganic/organic mechanoluminescent (ML) composites, and related sensors to visualize stress/strain in target structures. This discovery has triggered intense research interest in trap-controlled ML materials and composites over the past 2 decades. Notable achievements of this research include the development of trap-controlled materials that exhibit bright ML emission from the ultraviolet to the near infra-red, and multiscale mechano-optical sensitivities. This research has also increased our understanding of the mechanisms of ML phenomena, enabling the rational design of trap-controlled ML materials. Practical applications of ML are also being driven by the discovery that ML composites can serve as "mechano-optical sensitive skin" for structural health diagnosis, stress sensors for biomechanics, and mechanically-activated light sources. This review focuses on the design, synthesis, characterization, optimization and application of trap-controlled ML materials, and concludes with discussions on future directions of ML research and specific challenges to improve ML materials for real-world applications.

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Section: Thin Filmsmentioning

confidence: 99%

Trap-controlled mechanoluminescent materials

Zhang

Wang

Marriott

et al. 2019

Progress in Materials Science

257

196

View full text Add to dashboard Cite

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“…Only few papers are related to the investigation of EML and PML. The papers related to the studies of EML and PML are: .…”

mentioning

confidence: 99%

Survey of the literature on mechanoluminescence from 1605 to 2013

2014

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Mechanoluminescence (ML) is a type of luminescence induced by any mechanical action on solids. The light emissions induced by elastic deformation, plastic deformation and fracture of solids are called elastico ML (EML), plastico ML (PML) and fracto ML (FML), respectively. Whereas nearly 50% of all organic molecular solids and inorganic salts exhibit FML, only a few solids exhibit EML and PML. The EML and FML of certain solids are so intense that they can be seen during daylight with the naked eye. Mechanolumnescence has a great potential for use in different types of mechano-optical devices such as stress sensors, damage sensors, impact sensors, fracture sensors and safety management monitoring systems. This article reports a survey of the literature from 1605 to 2013. Mechanoluminescence is studied by physicists, chemists, material scientists, geologists, medical scientists, engineers and technologists, among others and researchers will certainly benefit from the literature survey on ML given here. In addition, the field of mechanoluminescence may attract the interest of many new researchers.

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“…For the electroluminescent materials, the intensity of luminescence (I) as a function of the applied electric field strength (E) can be expressed as following [5,22]:…”

Section: Resultsmentioning

confidence: 99%

“…Relatively few investigations have been done on stress-luminescence, which could be utilized in smart mechanical-optical sensor devices [5].…”

Section: Introductionmentioning

confidence: 99%