Application of lanthanide (Eu, Nd) spectroscopy as a structural probe of diluted double phosphates

Szuszkiewicz, W.; Keller, Barbara; Guzik, M.; Aitasalo, T.; Niittykoski, Janne; Hölsä, Jorma; Legendziewicz, J.

doi:10.1016/s0925-8388(02)00028-2

Cited by 38 publications

(36 citation statements)

References 18 publications

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“…The investigations of Yb 3+ and others Ln 3+ ions-doped sodium and rubidium yttrium double phosphates have been undertaken by us because these compounds are efficient hosts for lasing materials [12][13][14] On the other hand, the decrease of temperature to 4 K leads to a broadening of the line which also could confirm some disordering of the Na 3 Lu(PO 4 ) 2 :Yb 3+ crystal structure. The absorption spectra at low temperatures, especially in the case of the yttrium salts, are more complex than the spectra observed at room temperature (RT).…”

Section: Resultsmentioning

confidence: 99%

“…Na 3 Lu 1Àx Yb x (PO 4 ) 2 and Na 3 Y 1Àx Yb x (PO 4 ) 2 (x = 0.1 and 0.2) were prepared via the procedure described before [12]. Briefly, they were obtained by a solid state reaction at 900°C in air for 12 h with the stoichiometric amounts of Na 3 PO 4 and the mixed lutetium-ytterbium phosphate hydrate (Lu 1Àx Yb x (PO 4 ) 2 AE xH 2 O) or yttrium-ytterbium phosphate hydrate (Y 1Àx Yb x (PO 4 ) 2 AE xH 2 O), respectively.…”

Section: Methodsmentioning

confidence: 99%

“…The structures of these compounds have been studied by several authors [7][8][9][10][11][12][13][14]. The alkali double phosphates crystallize with various structures depending on the alkali metal and the ionic radius of the lanthanide ion.…”

Section: Structural Considerationsmentioning

confidence: 99%

“…Also, in the red phosphor used in fluorescent tubes (Y 2 O 3 :Eu 3+ ) UV radiation is efficiently absorbed by a transition to the charge transfer state of the Eu 3+ ion. The properties of alkali rare earth double phosphates of the M 3 RE(PO 4 ) 2 type have been studied as photoluminescent materials by several authors [5][6][7][8][9][10][11][12][13][14]. These double phosphates have their host absorption edge at a rather short wavelength which make them suitable as the host lattices for various luminescent materials including laser devices.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and optical properties of powders of lutetium and yttrium double phosphates-doped by ytterbium

et al. 2007

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This contribution is devoted to the new ytterbium-doped alkali metal lutetium double phosphates and their structural and spectroscopic characterisations. The absorption, emission and excitation spectra have been measured at 4, 10 and 293 K in the VUV to IR range. The results have been compared with the analogous yttrium phosphates. The luminescence spectra of the double phosphates have been recorded using various excitation lines, including the synchrotron radiation. The low temperature absorption and emission spectra in the region of the 2 F 7/2 ! 2 F 5/2 transition together with the IR spectra have been used to assign the electronic and vibronic components. Detailed analysis of the Yb 3+ -doped sodium lutetium double phosphates has been performed to determine the energy levels in these hosts and to compare their optical behaviour with analogous sodium yttrium double phosphates. The emission and excitation spectra have been investigated using synchrotron radiation and the origin of the emission has been analysed proving that the emission occurs from the charge transfer state.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Structural Considerationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis and optical properties of powders of lutetium and yttrium double phosphates-doped by ytterbium

et al. 2007

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“…The results are compared with the analogous sodium and rubidium yttrium double phosphates which have already been reported in a previous paper [8].…”

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Structural and Optical Characterization of Ytterbium Doped Lutetium Double Phosphates.

et al. 2007

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Abstract. Powder samples of the ternary phosphates A 3 Lu(PO 4 ) 2 :Yb 3ϩ (A ϭ Na, Rb) have been synthesised by solid state reactions. The spectroscopic properties of Yb 3ϩ in double phosphate host lattices were investigated using absorption, emission and excitation spectra at 4, 10 and 293 K in the VUV to IR range. The results obtained for both types of phosphates are compared. Together with the fundamental 2 F 5/2 Ǟ 2 F 7/2 emission in the IR range, a broad band emission with two peaks in the UV region Compounds containing Yb 3ϩ ions have potential applications as laser devices because of their simple electronic structure. There is no concentration quenching and no excited state absorption reducing the effective laser crossrelaxation process. The Yb 3ϩ ion exhibits intense and broad absorption bands in the IR region which is suitable for a diode-pumped laser. It was reported that ytterbium-doped lasers have longer emission lifetimes than the Nd 3ϩ -doped materials. All these properties of Yb 3ϩ indicate that the ytterbium-doped materials seem to be more promising than the neodymium-doped systems, already employed in laser materials. The fundamental luminescence of the Yb 3ϩ ion originating from the 2 F 5/2 Ǟ 2 F 7/2 transitions between the manifold of Stark-splitted levels occur in the IR range around 1000 nm.While searching for interesting laser host materials for solid state lasers, alkali rare-earth double phosphates of the M 3 RE(PO 4 ) 2 type were studied by several authors [1Ϫ10]. These compounds have their host absorption edge at a rather short wavelength which makes them suitable as host lattices for various luminescent materials.In addition to the intraconfigurational 4f-4f transitions, a broad emission band (called charge transfer band, CT)

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Synthesis and crystal structure of a new inorganic – organic complex: (4‐ClC₇H₆NH₃)₉[Nd(P₆O₁₈)₂]·9H₂O

Amri

Abid²,

Rzaigui

2007

Cryst. Res. Technol.

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(7), c = 20.695(6)Å, α = 102.04(3), β = 100.49(3), γ = 98.82(3)°, V = 5245 (4) 3 Å and Z = 2. The crystal structure has been solved and refined to R = 0.043 (Rw = 0.061) for 20420 observed reflections. The atomic arrangement of the title compound can be described as infinite layers built by complex of Neodyme [Nd(P 6 O 18 ) 2 ] and nine water molecules. The organic cations are located in the space delimited by the successive inorganic layers.

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Application of lanthanide (Eu, Nd) spectroscopy as a structural probe of diluted double phosphates

Cited by 38 publications

References 18 publications

Synthesis and optical properties of powders of lutetium and yttrium double phosphates-doped by ytterbium

Synthesis and optical properties of powders of lutetium and yttrium double phosphates-doped by ytterbium

Structural and Optical Characterization of Ytterbium Doped Lutetium Double Phosphates.

Synthesis and crystal structure of a new inorganic – organic complex: (4‐ClC₇H₆NH₃)₉[Nd(P₆O₁₈)₂]·9H₂O

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Application of lanthanide (Eu, Nd) spectroscopy as a structural probe of diluted double phosphates

Cited by 38 publications

References 18 publications

Synthesis and optical properties of powders of lutetium and yttrium double phosphates-doped by ytterbium

Synthesis and optical properties of powders of lutetium and yttrium double phosphates-doped by ytterbium

Structural and Optical Characterization of Ytterbium Doped Lutetium Double Phosphates.

Synthesis and crystal structure of a new inorganic – organic complex: (4‐ClC7H6NH3)9[Nd(P6O18)2]·9H2O

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Synthesis and crystal structure of a new inorganic – organic complex: (4‐ClC₇H₆NH₃)₉[Nd(P₆O₁₈)₂]·9H₂O