Optical properties of Yb-doped Y2SiO5 thin films

Denoyer, A; Jandl, S.; Viana, Bruno; Guillot-Noël, O.; Goldner, Ph.; Pelenc, D.; Thibault, Franck

doi:10.1016/j.optmat.2006.12.001

Cited by 12 publications

(13 citation statements)

References 17 publications

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“…1, absorption bands at 13 K from the lowest Yb 3+ ion 2 F 7/2 (0) ground-state level to the lowest 2 F 5/2 (0) excited state level are shown for the YSO:5%Yb single crystal and YSO:6%Yb thin film. The two main absorption bands 10,189 and 10,215 cm À1 correspond to the two nonequivalent Yb 3+ ions sites I and II while the weaker sidebands $10,184, 10,194, 10,205, 10,207, 10,220 and 10,223 cm À1 are associated with magnetically coupled Yb 3+ -Yb 3+ pairs [2,4]. The relative absorption band intensities, between the main absorption bands and the satellites, indicate that for the same doping concentrations the thin film Yb 3+ -Yb 3+ ion pairs are fewer than in the single crystal while Yb 3+ ions site II occupation is favored.…”

Section: Resultsmentioning

confidence: 99%

“…Yb-doped Y 2 SiO 5 (YSO:Yb) thin films and single crystals have been recently studied by Raman spectroscopy and infrared transmission [2][3][4]. In particular, the crystal-field (CF) levels of the two Yb 3+ ions occupied sites in Y 2 SiO 5 (YSO) have been detected with their vibronic side bands, and Yb 3+ -Yb 3+ magnetically coupled pairs have been observed.…”

Section: Introductionmentioning

confidence: 99%

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Cooperative emission study in ytterbium-doped Y2SiO5

Denoyer¹,

Lévesque²,

Jandl³

et al. 2008

Journal of Luminescence

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cooperative emission study in ytterbium-doped Y2SiO5

Denoyer¹,

Lévesque²,

Jandl³

et al. 2008

Journal of Luminescence

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“…In addition, rare‐earth elements (Ce 3+ , Yb 3+ , Tm 3+ , etc.) activated Y 2 SiO 5 and Y 2 Si 2 O 7 are also reported as candidates to replace Nd 3+ :YAG (Y 3 Al 5 O 12 ) solid lasers …”

Section: Introductionmentioning

confidence: 99%

Investigation of Native Point Defects and Nonstoichiometry Mechanisms of Two Yttrium Silicates by First‐Principles Calculations

Liu

Wang

et al. 2013

J. Am. Ceram. Soc.

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First‐principles method is used to study the native point defects in Y2SiO5 and Y2Si2O7 silicates. The calculated defect formulation energies show similar native point defect behaviors in Y2SiO5 and Y2Si2O7: the oxygen Frenkel defect is predominant; and it is followed by the cation antisite and Schottky defects. The possible chemical potential range of each constituent is further considered in the calculation of defect formation energy. Oxygen interstitial (Oi) and oxygen vacancy (VO) are the predominant native point defects under O‐rich and O‐poor condition, respectively. In addition, the mechanisms of accommodating composition deviations from stoichiometric Y2SiO5 and Y2Si2O7 are investigated. For Y2SiO5, Y2Si2O7 impurity may appear, together with the defects of SiY antisite, Oi interstitial, and/or VY vacancy when SiO2 is excess; while YSi antisite appears together with Yi interstitial and/or VO vacancy in Y2SiO5 when Y2O3 is excess. For Y2Si2O7, the main process is the formation of SiY antisite accompanied by Oi interstitial and/or VY vacancy when SiO2 is excess; but Y2SiO5 impurity forms, together with YSi antisite, VO vacancy, and/or Yi interstitial in Y2Si2O7 when Y2O3 is excess. We expect that the results are useful to control of processing conditions and further to optimization of performance of the two silicates.

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“…In recent years, Y 2 SiO 5 has attracted considerable attention owing to its important technological applications, as structural/functional ceramics, including promising candidate of solid state lasers, damage tolerant ceramics, and thermal/environmental barrier coating (TBC/EBC) materials . Because of various difficulties in synthesizing dense, phase‐pure and bulk Y 2 SiO 5 , the significance of this compound as a structural‐functional ceramic was ignored for many years.…”

Section: Introductionmentioning

confidence: 99%

Mechanisms of Mono‐Vacancy and Oxygen Permeability in Y₂SiO₅ Orthosilicate Studied by First‐Principles Calculations

Liu

Wang

et al. 2012

J. Am. Ceram. Soc.

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Understanding the mechanisms of native point defects and oxygen‐vacancy diffusion in Y2SiO5 is important to evaluate its performance as environmental and thermal barrier coating (ETBC). In the present first‐principles calculations, we show that oxygen vacancy is the predominant vacancy species and prefers to form on the oxygen lattice sites inside SiO4 tetrahedra instead of on the interstitial non‐silicon‐bonded oxygen site. The calculated defect formation energy and concentration of mono‐vacancies in Y2SiO5 obviously depend on the chemical potential of each element. The results suggest that it is possible to tailor the vacancy species in Y2SiO5 by controlling the chemical environment in material synthesis. Finally, theoretical simulation revealed that the self‐diffusion of oxygen vacancy has high energy barriers in Y2SiO5, which is comparable to those in SiO2 and Al2O3. The result demonstrates low oxygen permeability in Y2SiO5 and further strengthens its promising applications as ETBC material.

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Optical properties of Yb-doped Y2SiO5 thin films

Cited by 12 publications

References 17 publications

Cooperative emission study in ytterbium-doped Y2SiO5

Cooperative emission study in ytterbium-doped Y2SiO5

Investigation of Native Point Defects and Nonstoichiometry Mechanisms of Two Yttrium Silicates by First‐Principles Calculations

Mechanisms of Mono‐Vacancy and Oxygen Permeability in Y₂SiO₅ Orthosilicate Studied by First‐Principles Calculations

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Optical properties of Yb-doped Y2SiO5 thin films

Cited by 12 publications

References 17 publications

Cooperative emission study in ytterbium-doped Y2SiO5

Cooperative emission study in ytterbium-doped Y2SiO5

Investigation of Native Point Defects and Nonstoichiometry Mechanisms of Two Yttrium Silicates by First‐Principles Calculations

Mechanisms of Mono‐Vacancy and Oxygen Permeability in Y2SiO5 Orthosilicate Studied by First‐Principles Calculations

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Mechanisms of Mono‐Vacancy and Oxygen Permeability in Y₂SiO₅ Orthosilicate Studied by First‐Principles Calculations