One-dimensional LaF3:RE3+ (RE=Eu, Nd) nanostructured phosphors: Controllable synthesis and luminescence properties

Shao, Hong; Zhang, Yang; Li, Ning; Li, Dan; Yu, Wensheng; Liu, Guixia; Dong, Xiangting

doi:10.1016/j.ceramint.2023.06.185

Cited by 9 publications

(2 citation statements)

References 45 publications

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“…Simultaneously, nanofibres prepared by electrospinning have the characteristics of a large aspect ratio, ultra-high surface area and unique optical performance. 30,31 At present, there is no report on BaF 2 :Eu 2+/3+ ,Tb 3+ luminescent nanomaterials. Therefore, it is necessary to design a simple and universal strategy to realize the co-doping of Eu 2+/3+ and Tb 3+ in BaF 2 1D nanofibres by using electrospinning technology.…”

Section: Introductionmentioning

confidence: 99%

BaF₂:Eu^2+/3+,Tb³⁺nanofibres achieve enhanced multicolor luminescence and white-light emissionviamulti-channel excitation and energy migration procedure

Liu

Shao

et al. 2023

J. Mater. Chem. C

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Section: Introductionmentioning

confidence: 99%

BaF₂:Eu^2+/3+,Tb³⁺nanofibres achieve enhanced multicolor luminescence and white-light emissionviamulti-channel excitation and energy migration procedure

Liu

Shao

et al. 2023

J. Mater. Chem. C

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“…3 •3H 2 O, N,N-dimethylformamide (DMF, ≥ 99.5%), acetic acid (CH 3 COOH, ≥ 99.5%), and polyvinylpyrrolidone (PVP, M W = 1,300,000) were purchased from Aladdin industrial Co. ltd. The reagents used were both of AR grade.2.2 Synthesis of nanofibersAccording to Refs [25,26],. CuBi 2 O 4 /PW 12 composite nanofibers were synthesized via electrospinning technology.…”

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confidence: 99%

Rapid and highly sensitive detection of formaldehyde gas via a polyoxometalate–CuBi ₂O ₄ composite gas sensor

Song,

Yang,

et al. 2024

Polyoxometalates

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Quick response and high sensitivity are equally important for the practical application of gas sensors. In this study, we introduced polyoxometalates (POMs) into a classical ternary metal oxide CuBi 2 O 4 for the first time by convenient electrospinning and prepared a group of heater-type gas sensors by using CuBi 2 O 4 /PW 12 composite nanofibers. The sensor performances to formaldehyde gas were explored. The results proved that the gas-sensing response of the CuBi 2 O 4 /PW 12 (PW 12 = H 3 PW 12 O 40 •xH 2 O) composite sensor to 100 ppm formaldehyde gas was increased to 6.68, which was 3.92 times greater than the sensing capacity of the pure CuBi 2 O 4 sensor. Simultaneously, the sensor exhibited a highly rapid response/recovery time of only 1/2 s, which is significantly faster than performances of CuBi 2 O 4 gas sensors reported in the past literature. The cause of the improvement of the sensing performance was assessed via mechanism study, and it was found that the introduction of PW 12 into the sensor contributed to its enhanced performance. It was found that PW 12 , as an electron acceptor, increased carrier mobility and reduced electron-hole recombination, thus contributing to enhanced gas-sensing properties. Moreover, other gas-sensing parameters such as selectivity, humidity resistance, repeatability, long-term stability were investigated. Hence, this study contributed to the literature on the development of polyoxometalates-based gas sensors.

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Facilely Direct Construction, White‐Light Emission, and Color‐Adjustable Luminescence of LaF₃:Pr³⁺@SiO₂ Yolk‐Shell Nanospheres with Moisture Resistance

Li,

Shao,

Liu

et al. 2023

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Poor water stability and single luminous color are the major drawbacks of the most phosphors reported. Therefore, it is important to realize multicolor luminescence in a phosphor with single host and single activator as well as moisture resistance. LaF3:Pr3+@SiO2 yolk‐shell nanospheres are facilely obtained by a designing new technology of a simple and cost‐effective electrospray ionization combined with a dicrucible fluorating technique without using protective gas. In addition, tunable photoluminescence, especially white‐light emission, is successfully obtained in LaF3:Pr3+@SiO2 yolk‐shell nanospheres by adjusting Pr3+ ion concentrations, and the luminescence mechanism of Pr3+ ion is advanced. Compared with the counterpart LaF3:Pr3+ nanospheres, the water stability of LaF3:Pr3+@SiO2 yolk‐shell nanospheres is improved by 15% after immersion in water for 72 h, and the fluorescence intensity can be maintained at 86% of the initial intensity. Furthermore, by treating the yolk‐shell nanospheres with hydrofluoric acid, it is not only demonstrated that the shell‐layer is SiO2 but also core‐LaF3:Pr3+ nanospheres are obtained. Particularly, only fluorination procedure among the halogenation can produce such special yolk‐shell nanospheres, the formation mechanism of yolk‐shell nanospheres is proposed detailedly based on the sound experiments and a corresponding new technology is built. These findings broaden practical applications of LaF3:Pr3+@SiO2 yolk‐shell nanospheres.

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One-dimensional LaF3:RE3+ (RE=Eu, Nd) nanostructured phosphors: Controllable synthesis and luminescence properties

Cited by 9 publications

References 45 publications

BaF₂:Eu^2+/3+,Tb³⁺nanofibres achieve enhanced multicolor luminescence and white-light emissionviamulti-channel excitation and energy migration procedure

BaF₂:Eu^2+/3+,Tb³⁺nanofibres achieve enhanced multicolor luminescence and white-light emissionviamulti-channel excitation and energy migration procedure

Rapid and highly sensitive detection of formaldehyde gas via a polyoxometalate–CuBi ₂O ₄ composite gas sensor

Facilely Direct Construction, White‐Light Emission, and Color‐Adjustable Luminescence of LaF₃:Pr³⁺@SiO₂ Yolk‐Shell Nanospheres with Moisture Resistance

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One-dimensional LaF3:RE3+ (RE=Eu, Nd) nanostructured phosphors: Controllable synthesis and luminescence properties

Cited by 9 publications

References 45 publications

BaF2:Eu2+/3+,Tb3+nanofibres achieve enhanced multicolor luminescence and white-light emissionviamulti-channel excitation and energy migration procedure

BaF2:Eu2+/3+,Tb3+nanofibres achieve enhanced multicolor luminescence and white-light emissionviamulti-channel excitation and energy migration procedure

Rapid and highly sensitive detection of formaldehyde gas via a polyoxometalate–CuBi 2O 4 composite gas sensor

Facilely Direct Construction, White‐Light Emission, and Color‐Adjustable Luminescence of LaF3:Pr3+@SiO2 Yolk‐Shell Nanospheres with Moisture Resistance

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BaF₂:Eu^2+/3+,Tb³⁺nanofibres achieve enhanced multicolor luminescence and white-light emissionviamulti-channel excitation and energy migration procedure

BaF₂:Eu^2+/3+,Tb³⁺nanofibres achieve enhanced multicolor luminescence and white-light emissionviamulti-channel excitation and energy migration procedure

Rapid and highly sensitive detection of formaldehyde gas via a polyoxometalate–CuBi ₂O ₄ composite gas sensor

Facilely Direct Construction, White‐Light Emission, and Color‐Adjustable Luminescence of LaF₃:Pr³⁺@SiO₂ Yolk‐Shell Nanospheres with Moisture Resistance