Investigation on upconversion photoluminescence of Bi3TiNbO9:Er3+:Yb3+ thin films

Chen, Hengzhi; Yang, Bin; Sun, Yan; Zhang, Mingfu; Sui, Yu; Zhang, Zhiguo; Cao, Wenwu

doi:10.1016/j.jlumin.2011.06.045

Cited by 15 publications

(5 citation statements)

References 17 publications

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“…On the other hand, Bi 3 TiNbO 9 also shows nonlinear optical properties . Er 3+ /Yb 3+ ‐ and Eu 3+ ‐doped Bi 3 TiNbO 9 presents a up‐conversion photoluminescence and a novel orange‐red emission, respectively.…”

Section: Introductionmentioning

confidence: 99%

On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi₃TiNbO₉ Nanoparticles

Wan

Xie

et al. 2016

J. Am. Ceram. Soc.

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Bi3TiNbO9 nanoparticles with an acceptor dopant of Ni2+ ion were prepared by the conventional Pechini sol–gel synthesis. The X‐ray polycrystalline diffraction measurements (XRD) and the Rietveld refinements of Bi3TiNbO9 samples were completed. The surface property of Bi3TiNbO9 nanoparticles was investigated by transmission electron microscope, scanning electron microscope), and N2 adsorption–desorption isotherms. Bi3TiNbO9 nanoparticles showed an optical band gap with energy of 3.1 eV in the UV region. While the Ni2+‐doping could greatly reduce the band energy of Bi3TiNbO9:xNi2+ nanoparticles to 2.79 eV (x = 0.05) and 2.61 eV (x = 0.1). This indicates that the Ni‐doped samples could be excited by UV–visible light. The photocatalytic abilities were tested by the photodegradation on methylene blue solution (MB) and phenol solutions excited by visible light. Accordingly, the photocatalytic activity was improved by the Ni‐doping in B‐sites in this Aurivillius‐type structure. The results concluded that Bi3TiNbO9:Ni2+ would be a possible candidate as a visible light‐driven photocatalyst. The effective photocatalysis was discussed on the structure characteristic and experiment such as polarized Aurivillius (Bi2O2)2+ layers, luminescence, and decay lifetimes, etc.

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Section: Introductionmentioning

confidence: 99%

On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi₃TiNbO₉ Nanoparticles

Wan

Xie

et al. 2016

J. Am. Ceram. Soc.

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“…From 1000 to 1300 • C, the emission intensities increase with increasing sintering temperature. The reason may be due to three factors: (a) as mentioned above, the particle sizes become larger when the temperature increases, which produces less scattering and dissipation of light, causing enhancement of photoluminescence intensities (Jeong et al 2003;Chen et al 2011), (b) the defects in the crystals may decrease with increasing temperature, so the energy losses caused by the defects can be reduced and the emission intensities enhanced, and (c) the reduction of hydroxyl groups in the samples. Figure 5 shows infrared spectrum of the Yb 3+ and Er 3+ co-doped Y 2 Ce 2 O 7 nanoparticles prepared at 1000 • C. The peaks located at 3440 cm −1 belongs to the absorption of OH group.…”

Section: Methodsmentioning

confidence: 99%

Yb3+ and Er3+ co-doped Y2Ce2O7 nanoparticles: synthesis and spectroscopic properties

et al. 2013

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Yb 3+ and Er 3+ co-doped Y 2 Ce 2 O 7 nanoparticles sintered at different temperatures were prepared by homogeneous co-precipitation method. The products were characterized by X-ray powder diffraction (XRD), energy-dispersive spectroscopy (EDS) and transmission electron microscopy (TEM). The results indicated that the particle sizes and morphologies of the samples were heavily influenced by the sintering temperature. As temperature increased, the particle sizes became gradually larger and more agglomerate. The emissions including green and red upconversion emissions were investigated under 980 nm excitation. The emission intensities of the samples also depended on the sintering temperature. Two photon processes were mainly responsible for green and red upconversion emissions. Keywords. Nanoparticles; Yb 3+ and Er 3+ ; Y 2 Ce 2 O 7 ; upconversion emissions.

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“…As can be seen, the emission at 524 nm (P1), 544 nm (P3) and 548 nm (P4) can be ascribed to the Er 3+ ions substituting the Bi 3+ in Bi 3 TiNbO 9 in BLSFs. 32,33 At the same time, the emission of 533 nm (P2) and 554nm (P5) can be ascribed to the Er 3+ ions substituting the Bi 3+ in Bi 2 WO 6 in BLSFs. 34,35 Among the observed emission, when x>0.25, the intensity of P1, P3, and P4 decreased significantly and then the intensity of P2, P5 increased obviously, which indicated that the Er 3+ ions dopants preferentially substitute the Bi 3+ in Bi 3 TiNbO 9 part, and then in Bi 2 WO 6 part in BLSFs.…”

Section: Introductionmentioning

confidence: 94%

Optical temperature sensing by upconversion luminescence of Er doped Bi5TiNbWO15ferroelectric materials

Zou

Wang

et al. 2014

AIP Advances

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The Er3+ doped Bi5TiNbWO15 ceramics have been synthesized using conventional solid-state reaction techniques. The crystal structure, ferroelectric properties, UC emission properties and especially the temperature sensing behaviors were systematically studied. With increasing Er3+ content, the investigation of XRD pattern, the ferroelectric loop and the UC emission indicated that the Er3+ ions dopants preferentially substituted the A sites of Bi3TiNbO9 and then Bi2WO6. Based on fluorescence intensity ratio (FIR) technique, the observed results implied the ceramics were promising candidates for temperature sensors in the temperature range of 175 K −550 K. More importantly, this study provided a contrast of temperature sensitivity between emission from the same part (Bi3TiNbO9) in bismuth layered-structure and emission from the different part (Bi3TiNbO9 and Bi2WO6) in bismuth layered-structure for the first time.

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Investigation on upconversion photoluminescence of Bi3TiNbO9:Er3+:Yb3+ thin films

Cited by 15 publications

References 17 publications

On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi₃TiNbO₉ Nanoparticles

On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi₃TiNbO₉ Nanoparticles

Yb3+ and Er3+ co-doped Y2Ce2O7 nanoparticles: synthesis and spectroscopic properties

Optical temperature sensing by upconversion luminescence of Er doped Bi5TiNbWO15ferroelectric materials

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Investigation on upconversion photoluminescence of Bi3TiNbO9:Er3+:Yb3+ thin films

Cited by 15 publications

References 17 publications

On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi3TiNbO9 Nanoparticles

On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi3TiNbO9 Nanoparticles

Yb3+ and Er3+ co-doped Y2Ce2O7 nanoparticles: synthesis and spectroscopic properties

Optical temperature sensing by upconversion luminescence of Er doped Bi5TiNbWO15ferroelectric materials

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On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi₃TiNbO₉ Nanoparticles

On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi₃TiNbO₉ Nanoparticles