Time-resolved emission spectroscopy of gadolinium vanadate ceramics (GdVO4:Bi3+)

Leppert, Jan; Peudenier, S.; Bayer, E.; Grabmaier, B. C.; Blasse, G.

doi:10.1007/bf00348422

Cited by 6 publications

(3 citation statements)

References 13 publications

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“…e GdVO 4 luminescence is ascribed to the VO 4 3− group. Calculated lifetime of host luminescence of 2.82 µs agrees well with the time-resolved analysis provided in [28]. Moreover, as we have shown in the next subsection, this luminescence is gradually quenched by raising the temperature, which means that it is not measuring error caused by stray light of laser excitation.…”

Section: Photoluminescence and Lifetime Analysissupporting

confidence: 85%

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Orange-Reddish Light Emitting Phosphor GdVO₄:Sm³⁺ Prepared by Solution Combustion Synthesis

Rabasović

Križan

Savić-Šević

et al. 2018

Journal of Spectroscopy

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e gadolinium vanadate doped with samarium (GdVO 4 :Sm 3+ ) nanopowder was prepared by the solution combustion synthesis (SCS) method. After synthesis, in order to achieve the full crystallinity, the material was annealed in air atmosphere at 900°C. Phase identification in the postannealed powder samples was performed by X-ray diffraction, and morphology was investigated by high-resolution scanning electron microscopy (SEM). Photoluminescence characterization of the emission spectrum and timeresolved analysis have been performed using the tunable laser optical parametric oscillator excitation and the streak camera. Several strong emission bands in the Sm 3+ emission spectrum were observed, located at 567 nm ( 4 G 5/2 -6 H 5/2 ), 604 nm ( 4 G 5/2 -6 H 7/2 ), and 646 (654) nm ( 4 G 5/2 -6 H 9/2 ), respectively. e weak emission bands at 533 nm ( 4 F 3/2 -6 H 5/2 ) and 706 nm ( 4 G 5/2 -6 H 11/2 ) and a weak broad luminescence emission band of VO 4 3− were also observed by the detection system. We analyzed the possibility of using the host luminescence for two-color temperature sensing. e proposed method is improved by introducing the temporal dependence in the line intensity ratio measurements.

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Section: Photoluminescence and Lifetime Analysissupporting

confidence: 85%

“…In our measurements, all luminescence bellow 500 nm is cut o by the optical lter used for blocking the OPO excitation. e spectral shape of host luminescence, detected by us only above 500 nm, is similar to spectra presented in [1,9,28]. e GdVO 4 luminescence is ascribed to the VO 4 3− group.…”

Section: Photoluminescence and Lifetime Analysissupporting

confidence: 76%

Orange-Reddish Light Emitting Phosphor GdVO₄:Sm³⁺ Prepared by Solution Combustion Synthesis

Rabasović

Križan

Savić-Šević

et al. 2018

Journal of Spectroscopy

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“…Yttrium orthovanadate in powder form is a very attractive material for use as a red phosphor with trivalent Eu 3+ dopant in colour televisions and cathode ray tubes (Levine andPalilla 1964, Fotiev et al 1976) and is an excellent polarizer and laser material in single crystal form (Maunders andDeshazer 1971, Bass 1975). GdVO 4 powder doped with Bi 3+ has been proposed as a possible scintillating material in computer tomography (Leppert et al 1994). Recently, Morris et al (1994) developed GdVO 4 :Tm, Ho lasers using a diode laser as an excitation source.…”

Section: Introductionmentioning

confidence: 99%

Radiation-induced defects in -activated yttrium vanadates

Pode

Dhoble²

1998

J. Phys. D: Appl. Phys.

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In recent years much attention has been paid to the study of radiation-induced defects in laser and luminescent materials, since they affect the optical and stimulated emission properties. Defects in YVO 4 :Eu 3+ powder prepared by solid state diffusion have been studied by thermoluminescence (TL) and fluorescence measurements. The defects were accumulated and/or generated by exposing the powder to gamma rays. The influence of radiation defects was studied by comparing the fluorescence spectra of unirradiated and gamma-irradiated samples. The fluorescence output was found to decrease with the presence of defects. Broad and weak characteristic bands at 425 nm due to Eu 2+ were observed along with Eu 3+ emission lines at 575, 594, and 616 nm due to 5 D 0 → 7 F j transitions (j = 0,1 and 2) respectively. Two TL peaks were obtained in the doped powder, whereas only a single peak appeared in the pure samples. The TL emission was also highly enhanced in the doped powder and this increase was attributed to the presence of impurities. Defect accumulation was noted to be strongly dependent on the level of gamma exposure. A suitable explanation of these results is suggested.

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Time-resolved spectroscopy and energy transfer in Pr3+-doped Gd2(SO4)3�8H2O

et al. 1995

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Time-resolved emission spectroscopy of gadolinium vanadate ceramics (GdVO4:Bi3+)

Cited by 6 publications

References 13 publications

Orange-Reddish Light Emitting Phosphor GdVO₄:Sm³⁺ Prepared by Solution Combustion Synthesis

Orange-Reddish Light Emitting Phosphor GdVO₄:Sm³⁺ Prepared by Solution Combustion Synthesis

Radiation-induced defects in -activated yttrium vanadates

Time-resolved spectroscopy and energy transfer in Pr3+-doped Gd2(SO4)3�8H2O

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Time-resolved emission spectroscopy of gadolinium vanadate ceramics (GdVO4:Bi3+)

Cited by 6 publications

References 13 publications

Orange-Reddish Light Emitting Phosphor GdVO4:Sm3+ Prepared by Solution Combustion Synthesis

Orange-Reddish Light Emitting Phosphor GdVO4:Sm3+ Prepared by Solution Combustion Synthesis

Radiation-induced defects in -activated yttrium vanadates

Time-resolved spectroscopy and energy transfer in Pr3+-doped Gd2(SO4)3�8H2O

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Product

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About

Orange-Reddish Light Emitting Phosphor GdVO₄:Sm³⁺ Prepared by Solution Combustion Synthesis

Orange-Reddish Light Emitting Phosphor GdVO₄:Sm³⁺ Prepared by Solution Combustion Synthesis