Enhancing the mechanoluminescence of traditional ZnS:Mn phosphors via Li+ Co-doping

Deng, Yuan; Wei, Jianyong; Sun, Junlu; Zhang, Yanan; Dong, Lin; Shan, Chongxin

doi:10.1016/j.jlumin.2020.117364

Cited by 25 publications

(17 citation statements)

References 42 publications

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“…It was proclaimed that the enhancement has been achieved by creating more sulfur vacancies by the codped Li, which may promote the nonradiative energy transfer and thus improving the luminescence properties. [24] The ML spectrum of ZnS:Mn when developed different pressure was centered at about 585 nm as studied by Wang et al [39] (Figure 3b) but it was shifted to a longer wavelength when the same material was codoped with Deng et al [24] as shown in Figure 3a. It was reported that codoping Dy with Sr 4 Al 14 O 25 :Eu has improved the long afterglow emission compared to Sr 4 Al 14 O 25 :Eu which both have the same blue to green light with two main peaks of 424 and 486 nm, respectively.…”

Section: Reported Zns Compoundsmentioning

confidence: 80%

Section: Reported Zns Compoundsmentioning

confidence: 94%

Section: Piezoelectricitymentioning

confidence: 99%

“…Moreover, the ML mechanism for the ZnS:Mn, Li was mentioned by Deng et al and as shown in Figure 10a,b. [24] When applying a mechanical force on ZnS:Mn, Li, the energy band of ZnS:Mn will be tilted under the piezopotentioal effect, although Zhou et al [30] and Ma et al [83] suggested that piezoelectricity is not responsible for ML of ZnS:Mn. This will cause trapping of electrons from the valance band to the Vs (impurity shallow donor level) as mentioned before.…”

Section: Piezoelectricitymentioning

confidence: 99%

mentioning

confidence: 99%

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Recent Advances in Mechanoluminescence of Doped Zinc Sulfides

Qasem

Xiong

et al. 2021

Laser & Photonics Reviews

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Mechanoluminescence (ML) is the light generation of a material under mechanical stimuli. For more than 400 years, many compounds including inorganic and organic materials present this phenomenon. The general mechanism for the ML emission is the stress‐induced electrification effect combined with the piezoelectric field that lead to trapping and detrapping of the charge carriers. However, an in‐depth investigation and research are required to understand and hypothesize the ML mechanisms and optimum design and synthesis methods for better ML properties. Among the most common materials possessing this phenomenon is the zinc sulfide (ZnS) compounds that show high luminescence intensity and reproducibility. Such properties make them best candidates to be used in potential applications such as light and display devices, stress sensors, and human health monitoring devices. Therefore, this minireview focuses on the recent development and progress in doped ZnS ML compounds, including mechanism, design and synthesis, and the practical applications of such materials.

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Section: Reported Zns Compoundsmentioning

confidence: 80%

Section: Reported Zns Compoundsmentioning

confidence: 94%

Section: Piezoelectricitymentioning

confidence: 99%

Section: Piezoelectricitymentioning

confidence: 99%

mentioning

confidence: 99%

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Recent Advances in Mechanoluminescence of Doped Zinc Sulfides

Qasem

Xiong

et al. 2021

Laser & Photonics Reviews

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Realizing Red Mechanoluminescence of ZnS: Mn²⁺ Through Ferromagnetic Coupling

Liu,

Zheng,

Liu

et al. 2024

Adv Funct Materials

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Self‐recoverable mechanoluminescence (ML) is becoming a novel technology widely used in the fields of sensing, display, and artificial intelligence. The dominant ML material, ZnS: Mn2+, is reported to solely present a yellow emission color, which limits the applications of self‐recoverable ML materials to a large extent. Herein, an effective strategy to extend the ML emission range of ZnS: Mn2+ by the ferromagnetic coupling of Mn2+ ions are reported. Under the thermal carbon‐reduction atmosphere (TCRA), the emission ranges of ML, photoluminescence (PL), and persistent luminescence spectra of ZnS: Mn2+ phosphors are all successfully broadened from yellow to red. Furthermore, as for the PL and ML intensities of ZnS: Mn2+, they are intensified to 1.76 and 3.23 folds larger under the TCRA treatment than those in pure nitrogen, respectively. Various spectra and magnetic test results reveal that the red emission bands of ZnS: Mn2+ @TCRA phosphors originate from the ferromagnetic coupling of Mn2+ ions. This study is the first to realize strong red emission and tunable multicolor luminescence in the conventional ZnS‐based phosphors, which introduces opportunities for discovering the multiband emissions of Mn2+ ion in other compounds. Brightly multicolored ZnS: xMn2+ @TCRA elastic films have been fabricated to demonstrate their anti‐counterfeiting and security applications.

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Irreversible Ca₂B₂O₅‐Based Multicolor Mechanoluminescence for Security Labels

Li,

Sun,

Huang

et al. 2024

Adv Materials Technologies

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As the Internet of Things (IoT) continues its pervasive influence and digital technologies increasingly weave into the fabric of daily lives, the imperative for robust security measures becomes paramount to mitigate the escalating risks to the digital landscape. Traditional anti‐counterfeiting technologies, while capable to some extent, are constrained by factors such as material toxicity, low‐security efficacy, and intricate fabrication process. Mechanoluminescent materials have shown great potential in the areas of anti‐counterfeiting and security. Here, a multicolor mechanoluminescent (ML) material (lanthanide doped Ca2B2O5) synthesized by solid‐phase reaction is reported for the first time at a relatively lower temperature of 750 °C. The ML devices are obtained by embedding ML materials into polydimethylsiloxane elastomer, allowing for stress visualization with colors ranging from blue and green to orange and red. Through elaborate co‐doping, successive and accurate stress visualizations are realized. Finally, security labels based on the lanthanide ions doped Ca2B2O5 are prepared and also demonstrated to safeguard valuable packages. This work provides a novel multicolor ML material and pioneers its use in security labels, offering a universal solution for multicolor display, information security, dynamic anti‐counterfeiting, and other potential applications within the realm of IoT.

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Enhancing the mechanoluminescence of traditional ZnS:Mn phosphors via Li+ Co-doping

Cited by 25 publications

References 42 publications

Recent Advances in Mechanoluminescence of Doped Zinc Sulfides

Recent Advances in Mechanoluminescence of Doped Zinc Sulfides

Realizing Red Mechanoluminescence of ZnS: Mn²⁺ Through Ferromagnetic Coupling

Irreversible Ca₂B₂O₅‐Based Multicolor Mechanoluminescence for Security Labels

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Enhancing the mechanoluminescence of traditional ZnS:Mn phosphors via Li+ Co-doping

Cited by 25 publications

References 42 publications

Recent Advances in Mechanoluminescence of Doped Zinc Sulfides

Recent Advances in Mechanoluminescence of Doped Zinc Sulfides

Realizing Red Mechanoluminescence of ZnS: Mn2+ Through Ferromagnetic Coupling

Irreversible Ca2B2O5‐Based Multicolor Mechanoluminescence for Security Labels

Contact Info

Product

Resources

About

Realizing Red Mechanoluminescence of ZnS: Mn²⁺ Through Ferromagnetic Coupling

Irreversible Ca₂B₂O₅‐Based Multicolor Mechanoluminescence for Security Labels