Time-resolved fluorescence-line narrowing and energy-transfer studies in a<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Eu</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>-doped fluorophosphate glass

Balda, Rolindes; Fernández, J.; Adam, Jean-Luc; Arriandiaga, M. A.

doi:10.1103/physrevb.54.12076

Cited by 112 publications

(61 citation statements)

References 30 publications

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“…Within the 300±500 nm region as shown in Figure 3a, several intense and sharp lines correspond to the direct excitation of the europium ground state into higher excited states of the europium f-electrons. The position of these sharp lines is practically identical to the characteristic absorption bands for f±f transitions in trivalent europium, [20] and the spectra reported for other doped materials. [21] The most intense peak is centered at 395 nm with a width of only 3 nm at half maximum.…”

Section: Red-fluorescence Of Yf 3 Nanoparticles Doped With Eu 3+supporting

confidence: 57%

Down/Up Conversion in Ln3+-Doped YF3 Nanocrystals

Yan¹,

Li²

2005

Adv. Funct. Mater.

340

202

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Nanocrystalline Ln3+‐doped YF3 phosphors have been synthesized via a facile sonochemistry‐assisted hydrothermal route. YF3 nanoparticles are demonstrated to be a good host material for different lanthanides. Varying the dopants leads to different optical properties. In particular, the feasibility of inducing red, green, and especially blue emission in the Yb3+/Er3+ co‐doped YF3 sample by up‐conversion excitation in the near‐infrared region is demonstrated. Such unusually strong 411 nm blue up‐conversion emission has seldom been reported in other Yb3+/Er3+‐doped systems. The up‐conversion mechanisms have been analyzed.

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Section: Red-fluorescence Of Yf 3 Nanoparticles Doped With Eu 3+supporting

confidence: 57%

Down/Up Conversion in Ln3+-Doped YF3 Nanocrystals

Yan¹,

Li²

2005

Adv. Funct. Mater.

340

202

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“…[178]. Site selective excitation has often been used to probe the local structure in Eu 3+ -doped glasses and glass ceramics ( Figure 7) [179][180][181][182][183][184][185][186]. [188][189][190][191].…”

Section: Transitionmentioning

confidence: 99%

“…Europium luminescence spectroscopy is still of interest for symmetry determination of europium(III) complexes in solution, provided that a single complex with a well-defined structure is present in solution. Europium spectra have been used for probing the local structure of the Eu 3+ ion in glasses [182,183,186,221,[621][622][623][624][625][626][627][628][629][630][631][632][633][634][635][636]. It must be realized that many different sites are present in a glass matrix, often with a very wide variation in crystal-field parameters [182,623,624,627,[636][637][638].…”

Section: Magnetic Circular Dichroism (Mcd)mentioning

confidence: 99%

Interpretation of europium(III) spectra

Binnemans

2015

Coordination Chemistry Reviews

2,442

108

1,912

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“…Although rare earths are not randomly distributed throughout the glass and they may or may not enter as former ions, their optical spectra show, even at low concentrations, an inhomogeneous broadening which is the evidence of large site-tosite crystal field variations. Several laser spectroscopic techniques, such as fluorescence line narrowing ͑FLN͒, spectral hole burning, etc., 14,15 are required to obtain detailed information on the local field and ion-ion and ion-host interaction processes.…”

Section: Introductionmentioning

confidence: 99%

Laser spectroscopy ofNd3+ions inGeO2<

et al. 2000

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have been investigated by using steady-state and time-resolved laser spectroscopy. Judd-Ofelt parameters were derived from the absorption spectra and used to calculate the 4 F 3/2 → 4 I 11/2 stimulated emission cross section and the 4 F 3/2 radiative lifetime. Site-selective spectroscopy and time resolved fluorescence line narrowing experiments were performed in the 4 F 3/2 → 4 I 9/2 , 4 I 11/2 transitions. For all samples studied a line narrowing of the 4 F 3/2 → 4 I 11/2 emission has been observed when exciting at the long wave side of the 4 I 9/2 → 4 F 3/2 transition. The lifetimes of the 4 F 3/2 state do not show a monotonic variation with the excitation wavelength indicating large site-to-site variations in the local crystal field. Spectral migration of excitation among the Nd 3ϩ ions has been studied from the time evolution of the 4 F 3/2 → 4 I 9/2 spectra under resonant excitation. The results can be interpreted in terms of a dipole-dipole energy transfer mechanism. Visible upconversion has been observed in these glasses under infrared laser excitation.

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Time-resolved fluorescence-line narrowing and energy-transfer studies in aEu3+-doped fluorophosphate glass

Cited by 112 publications

References 30 publications

Down/Up Conversion in Ln3+-Doped YF3 Nanocrystals

Down/Up Conversion in Ln3+-Doped YF3 Nanocrystals

Interpretation of europium(III) spectra

Laser spectroscopy ofNd3+ions inGeO2<

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