Elastico-mechanoluminescence properties of Pr3+-doped BaTiO3–CaTiO3 diphase ceramics with water resistance behavior

Zhang, Juncheng; Tang, Mianmian; Wang, Xusheng; Li, Yanxia; Yao, Xi

doi:10.1016/j.ceramint.2011.05.102

Cited by 20 publications

(16 citation statements)

References 19 publications

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“…Typically, the XRD patterns and PL and ML intensities of (Ba,Ca)TiO 3 :Pr 3+ microparticles are identical before and after immersion in water for 30 days (Fig. 26) [145]. A similar level of protection against water would be anticipated for the following silicate-based ML materials, Ca 2 Al 2 SiO 7 :Ce 3+ , (Sr,M)MgSi 2 O 7 :Eu 2+ (M = Ca, Sr, Ba), and Ca 2 MgSi 2 O 7 :Eu 2+ .…”

Section: Water Resistancementioning

confidence: 89%

“…o account for the trap levels associated with the emission of Ln 3+ in the ML process. Examples of ML materials that are formed by non-equivalent substitution include Ca 2 Al 2 SiO 7 :Ce 3+ [82], (Ba,Ca)TiO 3 :Pr 3+ [143][144][145], SrAl 2 O 4 :Ce 3+ [91], CaYAl 3 O 7 :Ce 3+ [99], Sr 3 Sn 2 O 7 :Sm 3+ [101], CaZnOS:Er 3+ [108], CaZnOS:Sm 3+ [111], mCaO•Nb 2 O 5 :Pr 3+ (m = 1, 2 and 3) [112], LiNbO 3 :Pr 3+ [113], Ca 3 Ti 2 O 7 :Pr 3+ [114], (Ca,Sr) 2 Nb 2 O 7 :Pr 3+ (red) [126,127], and NaNbO 3 :Pr 3+ (red) [129,130]. Equivalent substitution creates isoelectronic trap states that result from the discrepancies of host ions and dopant ions in terms of their electronegativity and covalent radius [146].…”

Section: Trap Formationmentioning

confidence: 99%

“…The ML intensity of a trap-controlled ML material correlates dynamically to a change in the amplitude of the mechanical stimulus [97,123,145,236]. The light stimulus condition is an exception to this rule -this topic will be discussed in Section 4.9.3.…”

Section: Responses To Dynamic Mechanical Stimulimentioning

confidence: 99%

“…Another approach to confer water-resistance to ML materials is to utilize the water-resistant characteristic of the doped material matrix itself, such as aluminosilicate CaAl 2 Si 2 O 8 :Eu 2+ [94], titanate (Ba,Ca)TiO 3 :Pr 3+ [145], and nitroxide BaSi 2 O 2 N 2 :Eu 2+ [96]. Typically, the XRD patterns and PL and ML intensities of (Ba,Ca)TiO 3 :Pr 3+ microparticles are identical before and after immersion in water for 30 days (Fig.…”

Section: Water Resistancementioning

confidence: 99%

See 3 more Smart Citations

Trap-controlled mechanoluminescent materials

Zhang

Wang

Marriott

et al. 2019

Progress in Materials Science

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282

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: Water Resistancementioning

confidence: 89%

Section: Trap Formationmentioning

confidence: 99%

Section: Responses To Dynamic Mechanical Stimulimentioning

confidence: 99%

Section: Water Resistancementioning

confidence: 99%

See 2 more Smart Citations

Trap-controlled mechanoluminescent materials

Zhang

Wang

Marriott

et al. 2019

Progress in Materials Science

Self Cite

282

196

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show abstract

“…The detail of ELS definition was mentioned in a paper [7]. Among various reports about the ELS materials aiming at strong luminescence and various emission colors (wavelength), for example, ZnS:Mn [8,9], CaAl2Si2O8:Eu [10], BaTiO3-CaTiO3:Pr [11,12] and Srn+1SnnO3n+1:Sm [13], strontium aluminates doped with a small amount of europium (SrAl2O4:Eu, SAOE) is one of the promising ELS material owing to the strongest visible light emission [14][15][16][17][18][19][20][21]. From the application point of ELS material to the ML sensor which consists of ELS material and organic compounds [22][23][24][25], it is vital to choose the appropriate organic compounds, which are polymeric materials and organic solvents, to the ELS material, keeping or enhancing the original ELS characteristics.…”

Section: Introductionmentioning

confidence: 99%

Influence of organic solvent treatment on elasticoluminescent property of europium-doped strontium aluminates

Fujio

Terasaki

et al. 2014

Journal of Luminescence

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The influence of an organic solvent treatment on elasticoluminescent (ELS) characteristics of mechanoluminescent (ML) sensor using the composite film consisting of an ELS material and epoxy resin was investigated. We used strontium aluminate doped with a small amount of europium (SrAl2O4:Eu, SAOE) as an ELS material in this study. After evaluating the ELS characteristics of the fabricated ML sensors using SAOE treated with/without various organic solvents, SAOE treated with methanol and ethanol showed lower ELS intensities than that of untreated SAOE. In contrast, the ELS response curves against strain for the ML sensors using SAOE treated with acetone and toluene, overlapped with that of untreated SAOE. From the characterization of SAOE treated with alcohols, such as methanol and ethanol, we can hypothesize that poor ELS characteristics is due to the degradation of the SAOE grain surfaces by the hydrolyze reaction of SAOE with hydroxyl group of alcohol. Thus, on the basis of the obtained results, we can conclude that the selection of organic solvent used in the preparation of SAOE film is of considerable importance in the development of ML sensor with a highly-reliable ELS characteristic.

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Persistent Luminescence in Strontium Aluminate: A Roadmap to a Brighter Future

Heggen

Joos

Feng

et al. 2022

Adv Funct Materials

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Glow-in-the-dark materials have been around for a long time. While formerly materials had to be mixed with radioactive elements to achieve a sufficiently long and bright afterglow, these have now been replaced by much safer alternatives. Notably strontium aluminate, SrAl 2 O 4 , doped with europium and dysprosium, has been discovered over two decades ago and since then the phosphor has transcended its popular use in watch dials, safety signage, or toys with more niche applications such as stress sensing, photocatalysis, medical imaging, or flicker-free light-emitting diodes. A lot of research efforts are focused on further improving the storage capacity of SrAl 2 O 4 :Eu 2+ ,Dy 3+ , including in nanosized particles, and on finding the underlying physical mechanism to fully explain the afterglow in this material and related compounds. Here an overview of the most important results from the research on SrAl 2 O 4 :Eu 2+ ,Dy 3+ is presented and different models and the underlying physics are discussed to explain the trapping mechanism at play in these materials.

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Elastico-mechanoluminescence properties of Pr3+-doped BaTiO3–CaTiO3 diphase ceramics with water resistance behavior

Cited by 20 publications

References 19 publications

Trap-controlled mechanoluminescent materials

Trap-controlled mechanoluminescent materials

Influence of organic solvent treatment on elasticoluminescent property of europium-doped strontium aluminates

Persistent Luminescence in Strontium Aluminate: A Roadmap to a Brighter Future

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