X‐ray photoelectron spectroscopy investigations of Y3Al5O12:Yb single crystal

Kruczek, M.; Talik, E.; Sakowska, H.; Gała, M.; Świrkowicz, M.

doi:10.1002/crat.200410363

Cited by 19 publications

(17 citation statements)

References 9 publications

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“…All samples exhibited an increased amount of oxygen and yttrium and reduced amount of aluminum in relation to the nominal value. As in earlier measurements, lower content of aluminum ions and excess of oxygen ions for "as grown" YAG:Yb crystal was found [5]. The possible explanation is the presence of the YAG blocks separated by yttrium oxide layers.…”

Section: Resultssupporting

confidence: 74%

Electronic Structure of Y₃Al₅O₁₂:V Single Crystals, Comparison with Sintered Ceramics

et al. 2009

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Y3Al5O12 (YAG) single crystals doped with vanadium ions (V 3+ ) were obtained by the Czochralski method. The X-ray photoelectron spectra of YAG:V annealed in reducing atmospheres: H2, vacuum and H2 + vacuum are presented and compared with the spectra of the YAG ceramics. The X-ray photoelectron spectra showed that the vanadium dopant concentration in YAG:V crystals is lower than a nominal one. For the "as grown" YAG:2.8at.%V crystal vanadium exists in the mixed valence state. The increase in lattice parameters for the samples annealed in hydrogen was found.

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Section: Resultssupporting

confidence: 74%

Electronic Structure of Y₃Al₅O₁₂:V Single Crystals, Comparison with Sintered Ceramics

et al. 2009

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“…binding energies of the Tb, Al, O, and Ce were well in agreement with reported values [16]. The Ce 3d feature in (d) shows a complex structure consisting of Ce 3d 5/2 and Ce 3d 3/2 spin-orbit doublet around 885 and 904 eV, respectively, which is a characteristic property of the Ce 3+ ion [17].…”

Section: Resultssupporting

confidence: 89%

Thin Film Deposition of Tb₃Al₅O₁₂:Ce by Pulsed Laser Ablation and Effects of Low-temperature Post-annealing

Kim

Chung

Ryu

2012

Journal of the Optical Society of Korea

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Tb3Al5O12:Ce (TAG:Ce) thin films were successfully deposited by a pulsed laser ablation method on a quartz substrate, and low-temperature post-annealing effects on luminescent properties were investigated in detail. TAG:Ce thin films were analyzed by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and photoluminescence spectroscopy. The as-deposited films were amorphous, and post-annealing above 700℃ was required for crystallization. The post-annealed TAG:Ce thin films showed strong and broad emission bands around 542 nm and excitations at 451 nm, which all corresponded to transitions between the 4f ground level to the 5d 1 excited levels of Ce ion.

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“…1 Finally, the actual composition of Nd:YAG is improved in ceramics with respect to crystals in which, depending on the growth procedure, a nonhomogeneous distribution of yttrium and aluminum can be induced ͑as it could be the case of the Nd:YAG crystals grown by the Czochralski technique͒. 10,11 As a drawback, the main critical point of Nd:YAG ceramics with respect to crystals is the presence of a relevant density of grain boundaries. These grain boundaries could deteriorate the properties of Nd:YAG ceramics since they can act as scattering centers for both phonons and photons.…”

Section: Introductionmentioning

confidence: 99%

Microstructuration induced differences in the thermo-optical and luminescence properties of Nd:YAG fine grain ceramics and crystals

Jacinto

Benayas

Catunda

et al. 2008

The Journal of Chemical Physics

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Third-order nonlinear optical response and photoluminescence characterization of tellurite glasses with different alkali metal oxides as network modifiers J. Appl. Phys. 110, 083110 (2011) In-plane thermal conductivity determination through thermoreflectance analysis and measurements J. Appl. Phys. 110, 084313 (2011) Tuning of a cavity in a silicon photonic crystal by thermal expansion of an elastomeric infill Appl. Phys. Lett. 99, 111113 (2011) Assessing the thermal conductivity of non-uniform thin-films: Nanocrystalline Cu composites incorporating carbon nanotubes J. Appl. Phys. 110, 023506 (2011) Strong absorption and selective thermal emission from a midinfrared metamaterial Appl. Phys. Lett. 98, 241105 (2011) Additional information on J. Chem. Phys. The temperature and compositional dependences of thermo-optical properties of neodymium doped yttrium aluminum garnet ͑YAG͒ crystals and fine grain ceramics have been systematically investigated by means of time-resolved thermal lens spectrometry. We have found that Nd:YAG ceramics show a reduced thermal diffusivity compared to Nd:YAG single crystals in the complete temperature range investigated ͑80-300 K͒. The analysis of the time-resolved luminescent properties of Nd 3+ has revealed that the reduction in the phonon mean free path taking place in Nd:YAG ceramics cannot be associated with an increment in the density of lattice defects, indicating that phonon scattering at grain boundaries is the origin of the observed reduction in the thermal diffusivity of Nd:YAG ceramics. Finally, our results showed the ability of the time-resolved thermal lens to determine and optimize the thermo-optical properties of Nd:YAG ceramic based lasers.

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X‐ray photoelectron spectroscopy investigations of Y₃Al₅O₁₂:Yb single crystal

Cited by 19 publications

References 9 publications

Electronic Structure of Y₃Al₅O₁₂:V Single Crystals, Comparison with Sintered Ceramics

Electronic Structure of Y₃Al₅O₁₂:V Single Crystals, Comparison with Sintered Ceramics

Thin Film Deposition of Tb₃Al₅O₁₂:Ce by Pulsed Laser Ablation and Effects of Low-temperature Post-annealing

Microstructuration induced differences in the thermo-optical and luminescence properties of Nd:YAG fine grain ceramics and crystals

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X‐ray photoelectron spectroscopy investigations of Y3Al5O12:Yb single crystal

Cited by 19 publications

References 9 publications

Electronic Structure of Y3Al5O12:V Single Crystals, Comparison with Sintered Ceramics

Electronic Structure of Y3Al5O12:V Single Crystals, Comparison with Sintered Ceramics

Thin Film Deposition of Tb3Al5O12:Ce by Pulsed Laser Ablation and Effects of Low-temperature Post-annealing

Microstructuration induced differences in the thermo-optical and luminescence properties of Nd:YAG fine grain ceramics and crystals

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X‐ray photoelectron spectroscopy investigations of Y₃Al₅O₁₂:Yb single crystal

Electronic Structure of Y₃Al₅O₁₂:V Single Crystals, Comparison with Sintered Ceramics

Electronic Structure of Y₃Al₅O₁₂:V Single Crystals, Comparison with Sintered Ceramics

Thin Film Deposition of Tb₃Al₅O₁₂:Ce by Pulsed Laser Ablation and Effects of Low-temperature Post-annealing