Dual stimuli-responsive lanthanide-based phosphors for an advanced full-color anti-counterfeiting system

Wang, Tianlin; Ji, Xiangyi; Tao, Zhanhui; Zhou, Xiao; Hao, Zhe; Wang, Xinke; Gao, Xia; Wang, Shuo; Liu, Yaqing

doi:10.1039/d0ra01594f

Cited by 19 publications

(9 citation statements)

References 41 publications

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“…Rare-earth (RE) materials with unique electronic structures have become an indispensable resource in the world, which has been widely applied in next-generation solid-state lighting, solar cells, bio-images, luminescent films, security inks, anti-countering, optical thermometers, and so forth. [1][2][3][4][5][6][7] In the family of trivalent RE ions, samarium (Sm 3+ ) is a significant orange-reddish emitting activator owing to the emission transitions of 4 G 5/2 → 6 H J (J = 5/2, 7/2, 9/2, and 11/2). It has been confirmed that a strong absorption band was observed in the region of 350-450 nm as well.…”

Section: Introductionmentioning

confidence: 99%

Charge transfer band excitation of La₃NbO₇:Sm³⁺ phosphors induced abnormal thermal quenching toward high‐sensitivity thermometers

Hua

Kim

2021

J. Am. Ceram. Soc.

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Section: Introductionmentioning

confidence: 99%

Charge transfer band excitation of La₃NbO₇:Sm³⁺ phosphors induced abnormal thermal quenching toward high‐sensitivity thermometers

Hua

Kim

2021

J. Am. Ceram. Soc.

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“…The current fluorescence assays usually require fluorescence spectrometer and specialized researchers, which is not suitable in on-site analysis [ 32 , 33 , 34 , 35 , 36 , 37 ]. In this research, a smartphone installed a Color Picker APP is used as a signal reader to detect the DPA by integrating with the as-prepared ratiometric fluorescent sensing, Figure 4 A.…”

Section: Resultsmentioning

confidence: 99%

A Smartphone Integrated Platform for Ratiometric Fluorescent Sensitive and Selective Determination of Dipicolinic Acid

Hua-guang

et al. 2022

Biosensors

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A desirable lanthanide-based ratiometric fluorescence probe was designed as a multifunctional nanoplatform for the determination of dipicolinic acid (DPA), a unique bacterial endospore biomarker, with high selectivity and sensitivity. The carbon dots (CDs) with blue emission wavelengths at 470 nm are developed with europium ion (Eu3+) to form Eu3+/CDs fluorescent probes. DPA can specifically combine with Eu3+ and then transfer energy from DPA to Eu3+ sequentially through the antenna effect, resulting in a distinct increase in the red fluorescence emission peak at 615 nm. The fluorescence intensity ratio of Eu3+/CDs (fluorescence intensity at 615 nm/fluorescence intensity at 470 nm) showed good linearity and low detection limit. The developed ratiometric nanoplatform possesses great potential for application in complex matrices owing to its specificity for DPA. In addition, the integration of a smartphone with the Color Picker APP installed enabled point-of-care testing (POCT) with quantitative measurement capabilities, confirming the great potential of the as-prepared measurement platform for on-site testing.

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“…The synthesis methods of DPA-Ce, DPA-Tb, DPA-Eu, and DPA-Ce-GMP follow our previous reports. , Briefly, Ce(CH 3 COO) 3 ·6H 2 O and DPA were mixed and dissolved in 20 mL of EtOH and then exposed to UV radiation for 20 min to obtain DPA-Ce. DPA-Tb and DPA-Eu were feasibly obtained by mixing DPA with Tb(NO 3 ) 3 ·6H 2 O or Eu(NO 3 ) 3 ·6H 2 O, respectively, in 20 mL of EtOH.…”

Section: Methodsmentioning

confidence: 99%

Efficient One-Pot Synthesis of Bright Blue-Emitting Ce³⁺-Based Phosphor: Application for the Construction of Warm White-Light-Emitting Diodes and Anticounterfeiting

Huang

Lei

et al. 2022

ACS Appl. Electron. Mater.

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In the present investigation, we demonstrated a simple approach for the reproducible synthesis of cerium(III)-based blue phosphor, which provides versatile applications in the construction of warm white-light-emitting diodes (WLEDs) and anticounterfeiting patterns. It is found that the mixture of dipicolinic acid (DPA) with Ce3+ in ethanol (DPA-Ce) emits blue fluorescence under the assistance of ultraviolet (UV) induction. The quantum yield of the DPA-Ce phosphor reaches 44% and is improved to 52% by combining with guanosine 5′-monophosphate (GMP). The obtained DPA-Ce-GMP emits blue fluorescence in both a solid powder and aqueous solution, having advantages of long luminescence lifetimes, ultralong stability, and outstanding antitemperature bleaching. With DPA as a universal ligand, DPA-Tb with green fluorescence and DPA-Eu with red fluorescence are integrated with the blue fluorescence of DPA-Ce-GMP to construct full-color and white-light-emitting devices. The as-prepared warm WLED with a quantum yield of 64% presents an excellent stability and high quality with a color rending index of up to 90, CIE color coordinates of (0.37, 0.36), a correlated color temperature of 3950 K, and a luminous efficiency of 37.8 lm W–1. Multiple anticounterfeiting patterns are further encoded with the as-prepared lanthanide-based phosphors. The investigation offers a simple assay for the cost-effective, large-scale synthesis of phosphors, with great promise in diverse applications including the lighting industry and anticounterfeiting technology.

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Dual stimuli-responsive lanthanide-based phosphors for an advanced full-color anti-counterfeiting system

Abstract: Dual stimuli-responsive lanthanide-based phosphors were prepared for constructing a multilevel full color anti-counterfeiting system, augmenting the security level for information protection.

Cited by 19 publications

References 41 publications

Charge transfer band excitation of La₃NbO₇:Sm³⁺ phosphors induced abnormal thermal quenching toward high‐sensitivity thermometers

Charge transfer band excitation of La₃NbO₇:Sm³⁺ phosphors induced abnormal thermal quenching toward high‐sensitivity thermometers

A Smartphone Integrated Platform for Ratiometric Fluorescent Sensitive and Selective Determination of Dipicolinic Acid

Efficient One-Pot Synthesis of Bright Blue-Emitting Ce³⁺-Based Phosphor: Application for the Construction of Warm White-Light-Emitting Diodes and Anticounterfeiting

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Dual stimuli-responsive lanthanide-based phosphors for an advanced full-color anti-counterfeiting system

Abstract: Dual stimuli-responsive lanthanide-based phosphors were prepared for constructing a multilevel full color anti-counterfeiting system, augmenting the security level for information protection.

Cited by 19 publications

References 41 publications

Charge transfer band excitation of La3NbO7:Sm3+ phosphors induced abnormal thermal quenching toward high‐sensitivity thermometers

Charge transfer band excitation of La3NbO7:Sm3+ phosphors induced abnormal thermal quenching toward high‐sensitivity thermometers

A Smartphone Integrated Platform for Ratiometric Fluorescent Sensitive and Selective Determination of Dipicolinic Acid

Efficient One-Pot Synthesis of Bright Blue-Emitting Ce3+-Based Phosphor: Application for the Construction of Warm White-Light-Emitting Diodes and Anticounterfeiting

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Charge transfer band excitation of La₃NbO₇:Sm³⁺ phosphors induced abnormal thermal quenching toward high‐sensitivity thermometers

Charge transfer band excitation of La₃NbO₇:Sm³⁺ phosphors induced abnormal thermal quenching toward high‐sensitivity thermometers

Efficient One-Pot Synthesis of Bright Blue-Emitting Ce³⁺-Based Phosphor: Application for the Construction of Warm White-Light-Emitting Diodes and Anticounterfeiting