The effect of site occupation and valence state of Bi on the luminescence properties of Bi-activated oxysulfide MZnOS (M = Ca, Ba) with layer structure

Pan, Dengyu; Yang, Yun-Ling; Yang, Xue-Chun; Xu, Tao; Cui, Yuanyuan; Sun, Xin‐Yuan; He, Feng; Liu, Lian; Shen, Yu; Zhao, Jingtai; Zhang, Zhijun

doi:10.1016/j.jallcom.2018.01.374

Cited by 24 publications

(15 citation statements)

References 35 publications

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“…[ 33–35 ] In addition, there are also some reports on Bi‐based materials that show the absorption of X‐ray, which are also typical lead‐free perovskite materials. [ 36,37 ] Bi ions are reported to improve the crystal perfection as well as the exciton localization for enhanced PLQY. [ 38 ]…”

Section: Figurementioning

confidence: 99%

See 1 more Smart Citation

Multimodal Luminescent Yb³⁺/Er³⁺/Bi³⁺‐Doped Perovskite Single Crystals for X‐ray Detection and Anti‐Counterfeiting

et al. 2020

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luminescence, and also the recent hologram technique. [1-3] Compared to other conventional techniques, the fluorescence printing patterns supply promising high security to the key information valuable documents due to the tunable emission properties. [4,5] As counterfeiting technology has also been quickly developed, the traditional mono-mode anti-counterfeiting is far from the requirement of practical applications to guarantee a high level of data and information safety. The traditional anti-counterfeiting luminescence is achieved by the mono-mode downshifting (DS) luminescence, which converts the high energy photon into lower energy luminescence. To address such concern, developing more complicated anti-counterfeiting techniques by increasing the luminescent modes becomes the most challenging topic. Presently, the realization of concurrent upconversion (UC) and DS have been successfully utilized in anti-counterfeiting based on the lanthanide-based dopants. [6-9] The Eu-doped down-shift luminescent materials have been applied in the Euro banknotes, which enables the visible photoluminescence (PL) based on UV lamp excitation. Meanwhile, the Bank of China also introduced the Yb/Er-doped UC phosphors in the banknotes as the counterfeiting technique, which emits the Anti-counterfeiting techniques have become a global topic since they is correlated to the information and data safety, in which multimodal luminescence is one of the most desirable candidates for practical applications. However, it is a long-standing challenge to actualize robust multimodal luminescence with high thermal stability and humid resistance. Conventionally, the multimodal luminescence is usually achieved by the combination of upconversion and downshifting luminescence, which only responds to the electromagnetic waves in a limited range. Herein, the Yb 3+ /Er 3+ /Bi 3+ co-doped Cs 2 Ag 0.6 Na 0.4 InCl 6 perovskite material is reported as an efficient multimodal luminescence material. Beyond the excitation of ultraviolet light and nearinfrared laser (980 nm), this work extends multimodal luminescence to the excitation of X-ray. Besides the flexible excitation sources, this material also shows the exceptional luminescence performance, in which the X-ray detection limit reaches the level of nGy s −1 , indicating a great potential for further application as a colorless pigment in the anti-counterfeiting field. More importantly, the obtained double perovskite features high stability against both humidity and temperature up to 400 °C. This integrated multifunctional luminescent material provides a new directional solution for the development of multifunctional optical materials and devices.

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Section: Figurementioning

confidence: 99%

“…A small amount of Bi 3+ doped into RE‐1 structure absorbs the high energy from X‐ray, which enhances the structure perfection, promotes the exciton localization, and further improves the XEL performance as well as the photoluminescence quantum yield (PLQY). [ 17,28,36,55 ]…”

Section: Figurementioning

confidence: 99%

Multimodal Luminescent Yb³⁺/Er³⁺/Bi³⁺‐Doped Perovskite Single Crystals for X‐ray Detection and Anti‐Counterfeiting

et al. 2020

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“…[ 29 ] In our previous work, a novel cyan emitting phosphor CaZnOS:Bi 3+ ,Li + exhibits much stronger ML intensity than commercial powder ZnS:Cu + . [ 30,31 ] The wavelength position of the emission band of Mn 2+ strongly depends on the crystal field. It can vary from green to deep red.…”

Section: Introductionmentioning

confidence: 99%

Time‐Resolved Bright Red to Cyan Color Tunable Mechanoluminescence from CaZnOS: Bi³⁺, Mn²⁺ for Anti‐Counterfeiting Device and Stress Sensor

Yang

Yuan

et al. 2021

Advanced Optical Materials

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Mechanoluminescence (ML) is a classical optical phenomenon that is induced by mechanical stimulus, and it can be applied to stress sensors, imaging, self‐powered display/lighting and anti‐counterfeiting. However, the realization of determining the magnitude of stress in real time by the changes of colors for stress‐induced display/lighting has been fundamentally challenging. Herein, the superior manipulation of colors from blue to red continuously by pressure or concentration is achieved in Bi,Mn co‐activated CaZnOS for the first time. CaZnOS:Bi3+,0.1% Mn2+ exhibits the ML color from red, orange, white, and cyan with the pressure from 0 to 5000 N. Moreover, ML color manipulation from cyan to red light is also achieved with difference in Mn2+ concentration. It is of note that there is a reversible phase transition of CaZnOS according to in situ X‐ray diffraction and Raman spectra at high pressure. Moreover, the correlation between crystal structure and ML properties, as well as the ML mechanism are established and discussed in detail. In conclusion, the present results demonstrate the Bi,Mn co‐activated CaZnOS as a novel ML material achieving multi‐color manipulation with great potential applications in the fields of novel mechanically stress‐induced display, ultrasound monitoring, and particularly advanced anti‐counterfeiting technology.

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“…The chromaticity coordinates of the ML colours of the three different samples are shown in Fig. 4e, where we synthesised co-doped CaZnOS:Sb 3+ /Bi 3+ and CaZnOS:Bi 3+ by the high-temperature solid-phase method [55][56][57]; these results show that co-doping can effectively change the colour of ML. Fig.…”

Section: Resultsmentioning

confidence: 90%

Broadband multimodal emission in Sb-doped CaZnOS-layered semiconductors

Zheng

et al. 2021

Sci. China Mater.

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Mechanoluminescent (ML) smart materials are expected to be used in stress sensors, new displays, and advanced flexible optoelectronic devices, because of their unique mechanical-to-light energy conversion properties. However, the narrow-range ML emission characteristics of single materials limit their application scope. In this work, we report on the broadband multimodal emission in Sb-doped CaZnOS layered semiconductors. A series of CaZnOS layer-structured powders with different Sb 3+ doping concentrations were synthesised using a high-temperature solid-phase method. The CaZnOS:Sb 3+ phosphor achieved a wide range of ML spectra (400-900 nm), adjustable photoluminescence with double luminescent peaks located at 465 and 620 nm, and the X-rayinduced luminescence characteristics were systematically studied. We have also achieved ultra-broad warm white light ML emission of Sb 3+ and Bi 3+ co-doped samples. Therefore, it can be expected that these ML phosphors will be used in smart lighting, displays, visible stress sensors, and X-ray imaging and detections.

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The effect of site occupation and valence state of Bi on the luminescence properties of Bi-activated oxysulfide MZnOS (M = Ca, Ba) with layer structure

Cited by 24 publications

References 35 publications

Multimodal Luminescent Yb³⁺/Er³⁺/Bi³⁺‐Doped Perovskite Single Crystals for X‐ray Detection and Anti‐Counterfeiting

Multimodal Luminescent Yb³⁺/Er³⁺/Bi³⁺‐Doped Perovskite Single Crystals for X‐ray Detection and Anti‐Counterfeiting

Time‐Resolved Bright Red to Cyan Color Tunable Mechanoluminescence from CaZnOS: Bi³⁺, Mn²⁺ for Anti‐Counterfeiting Device and Stress Sensor

Broadband multimodal emission in Sb-doped CaZnOS-layered semiconductors

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The effect of site occupation and valence state of Bi on the luminescence properties of Bi-activated oxysulfide MZnOS (M = Ca, Ba) with layer structure

Cited by 24 publications

References 35 publications

Multimodal Luminescent Yb3+/Er3+/Bi3+‐Doped Perovskite Single Crystals for X‐ray Detection and Anti‐Counterfeiting

Multimodal Luminescent Yb3+/Er3+/Bi3+‐Doped Perovskite Single Crystals for X‐ray Detection and Anti‐Counterfeiting

Time‐Resolved Bright Red to Cyan Color Tunable Mechanoluminescence from CaZnOS: Bi3+, Mn2+ for Anti‐Counterfeiting Device and Stress Sensor

Broadband multimodal emission in Sb-doped CaZnOS-layered semiconductors

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Product

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The effect of site occupation and valence state of Bi on the luminescence properties of Bi-activated oxysulfide MZnOS (M = Ca, Ba) with layer structure

Multimodal Luminescent Yb³⁺/Er³⁺/Bi³⁺‐Doped Perovskite Single Crystals for X‐ray Detection and Anti‐Counterfeiting

Multimodal Luminescent Yb³⁺/Er³⁺/Bi³⁺‐Doped Perovskite Single Crystals for X‐ray Detection and Anti‐Counterfeiting

Time‐Resolved Bright Red to Cyan Color Tunable Mechanoluminescence from CaZnOS: Bi³⁺, Mn²⁺ for Anti‐Counterfeiting Device and Stress Sensor